Skoda Karoq 2018 Instruction manual

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted
unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
Workshop Manual
Karoq 2018 ➤
Electrical system
Edition 10.2017
Service
Service Department. Technical Information

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted
unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
List of Workshop Manual Repair Groups
Repair Group
00 - Technical data
27 - Starter, current supply, CCS
90 - Gauges, instruments
92 - Windscreen wash/wipe system
94 - Lights, bulbs, switches - exterior
96 - Lights, bulbs, switches - interior
97 - Wiring
Technical information should always be available to the foremen and mechanics, because their
careful and constant adherence to the instructions is essential to ensure vehicle road-worthiness and
safety. In addition, the normal basic safety precautions for working on motor vehicles must, as a
matter of course, be observed.
Service
All rights reserved.
No reproduction without prior agreement from publisher.
Copyright © 2017 ŠKODA AUTO a. s. D4B80773C64

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted
unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
Contents
00 - Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Safety precautions for working on vehicles with start-stop system . . . . . . . . . . . . . . . . . . 1
1.2 Safety precautions during road tests in which testing and measuring equipment is used . . 1
2 Repair instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1 Contact corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.2 Cable routing and securing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1 Battery types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2 Basic topics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
27 - Starter, current supply, CCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Assembly overview - battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Removing and installing battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Disconnecting and reconnecting battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4 Removing and installing battery tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.5 Checking battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.6 Charging battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.7 Removing and installing earth lead with battery monitoring control unit J367 . . . . . . . . . . 11
1.8 Adapt the battery monitoring control unit J367 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1 Assembly overview - generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2 Removing and installing alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3 Checking generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.4 Removing and installing V-ribbed belt pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.5 Removing and installing voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3 Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.1 Assembly overview - starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2 Removing and installing starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4 Cruise control system (CCS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.1 CCS design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5 start-stop system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.1 General description - Start-stop system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6 Adaptive Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.1 Removing and installing adaptive cruise control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.2 Removing and installing the switch for ACC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.3 Calibrate automatic distance control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
90 - Gauges, instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
1 Dash panel insert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
1.1 Removing and installing dash panel insert KX2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
1.2 Contact assignment to multi-pin connectors of dash panel insert . . . . . . . . . . . . . . . . . . . . 35
2 Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2.1 Summary of components - horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2.2 Removing and installing treble horn H2 / and low-tone horn H7 . . . . . . . . . . . . . . . . . . . . 37
92 - Windscreen wash/wipe system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
1 Windscreen wiper and washer system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
1.1 Assembly overview - windscreen wiper system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
1.2 Set windscreen wipers to the service position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
1.3 Removing and installing wiper blade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Karoq 2018 ➤
Electrical system - Edition 10.2017
Contents i

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted
unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
1.4 Removing and installing windscreen wiper arms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
1.5 Adjusting windscreen wiper arms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
1.6 Removing and installing windscreen wiper motor V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
1.7 Removing and installing Sensor for rain and light detection . . . . . . . . . . . . . . . . . . . . . . . . 45
2 Windscreen washer system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
2.1 Assembly overview - windscreen washer system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
2.2 Removing and installing the washer fluid reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
2.3 Removing and installing windscreen washer fluid level sender . . . . . . . . . . . . . . . . . . . . . . 54
2.4 Removing and installing windscreen washer pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
2.5 Removing and installing washer jets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
2.6 Adjusting spray jets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
3 Rear window wiper system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
3.1 Assembly overview - rear window wiper system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
3.2 Removing and installing wiper blade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3.3 Removing and installing windscreen wiper arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3.4 Adjusting windscreen wiper arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
3.5 Removing and installing rear window wiper motor V12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4 Rear window washer system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.1 Assembly overview - rear window washer system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.2 Removing and installing the washer fluid reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.3 Removing and installing window washer pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.4 Removing and installing washer jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.5 Removing and installing the rear view camera spray nozzle . . . . . . . . . . . . . . . . . . . . . . . . 62
4.6 Adjusting spray jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5 Headlamp cleaning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
5.1 Assembly overview - Headlight washer system pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
5.2 Removing and installing the washer fluid reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
5.3 Removing and installing headlight cleaning system pump V11 . . . . . . . . . . . . . . . . . . . . 65
5.4 Removing and installing washer jets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
5.5 Adjusting spray jets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
5.6 Removing and installing the lift cylinder for the spray nozzles . . . . . . . . . . . . . . . . . . . . . . 66
5.7 Bleed the headlamp cleaning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6 Washer fluid lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.1 Repairing washer fluid lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
94 - Lights, bulbs, switches - exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
1 Headlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
1.1 Assembly overview - headlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
1.2 Removing and installing headlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
1.3 Setting the headlight beam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
1.4 Removing and installing the front left turn signal bulb M5 / M7 . . . . . . . . . . . . . . . . . . . . . . 73
1.5 Installing repair kit for headlight housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
1.6 Changing headlights over from driving on right to driving on left . . . . . . . . . . . . . . . . . . . . 74
1.7 Changing headlights over from driving on left to driving on right . . . . . . . . . . . . . . . . . . . . 75
1.8 Removing and installing the control motor for headlamp range control V48 / V49 . . . . . . 75
1.9 Removing and installing the light bulb for the low beam light . . . . . . . . . . . . . . . . . . . . . . . . 77
1.10 Removing and installing bulb for number plate light M30 / M32 . . . . . . . . . . . . . . . . . . . . 78
1.11 Removing and installing the side light bulb M1 / M3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
1.12 Removing and installing fog light bulb L22 / L23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
1.13 Removing and installing the power output module for headlight . . . . . . . . . . . . . . . . . . . . 81
1.14 Removing and installing LED module for fog light and cornering light . . . . . . . . . . . . . . . . 82
1.15 Removing and installing the LED module for daylight driving light . . . . . . . . . . . . . . . . . . . . 83
2 Automatic headlight range control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
2.1 Vehicle level sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
2.2 Removing and installing the headlamp range control unit . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Karoq 2018 ➤
Electrical system - Edition 10.2017
ii Contents

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted
unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
3 Lights in the exterior mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
3.1 Removing and installing turn signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
3.2 Removing and installing the entry lighting in the exterior mirror . . . . . . . . . . . . . . . . . . . . . . 89
4 Tail light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
4.1 Installation overview - tail lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
4.2 Removing and installing tail light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
4.3 Removing and installing the tail light in the tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
4.4 Removing and installing fog tail light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
4.5 Removing and installing reversing light bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
4.6 Removing and installing the light bulb for the turn signal light . . . . . . . . . . . . . . . . . . . . . . 96
5 Additional brake light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
5.1 Removing and installing high level brake light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
6 Registration number lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
6.1 Removing and installing licence plate carrier X4 / X5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
7 Entry and start authorisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
7.1 Installation overview - entry and start authorisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
7.2 Removing and installing the interface for entry and start system J965 . . . . . . . . . . . . . . . . 102
7.3 Install and remove interior aerial 1 for entry and start system R138 . . . . . . . . . . . . . . . . . . 103
7.4 Install and remove aerial in luggage compartment for entry and start system R137 . . . . 103
7.5 Install and remove aerial in rear bumper for entry and start system R136 . . . . . . . . . . . . 104
7.6 Removing and installing control unit for tailgate opening J938 . . . . . . . . . . . . . . . . . . . . . . 104
7.7 Removing and installing sender for tailgate opening G750 / G760 . . . . . . . . . . . . . . . . . . 105
8 Switch unit on the steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
8.1 Summary of components - switch unit on the steering column . . . . . . . . . . . . . . . . . . . . . . 106
8.2 Removing and installing switch unit on the steering column . . . . . . . . . . . . . . . . . . . . . . . . 109
8.3 Removing and installing steering column electronics control unit J527 . . . . . . . . . . . . . . 111
8.4 Removing and installing base holder for steering column combination switch . . . . . . . . . . 113
8.5 Contact assignment on the steering column electronics control unit . . . . . . . . . . . . . . . . . . 114
8.6 Removing and installing ignition/starter switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
8.7 Removing and installing lock cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
8.8 Removing and installing steering lock housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
8.9 Removing and installing ignition key anti-removal lock solenoid N376 . . . . . . . . . . . . . . . . 117
9 Parking aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
9.1 Assembly overview - parking aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
9.2 Removing and installing the parking aid control unit J446 . . . . . . . . . . . . . . . . . . . . . . . . 120
9.3 Removing and installing control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
9.4 Remove and install the front parking aid warning buzzer H22 . . . . . . . . . . . . . . . . . . . . . . 121
9.5 Removing and installing the rear parking aid warning buzzer H15 . . . . . . . . . . . . . . . . . . 122
9.6 Removing and installing front parking aid sender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
9.7 Removing and installing rear parking aid senders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
10 Park steering assistant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
10.1 Summary of components - Park steering assistant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
10.2 Removing and installing control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
10.3 Removing and installing the front sender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
10.4 Removing and installing rear sender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
10.5 Removing and installing the front warning buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
10.6 Removing and installing the rear warning buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
11 Trailer coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
11.1 Summary of components - Connection, control unit for trailer detection . . . . . . . . . . . . . . 127
11.2 Removing and installing the control unit for trailer detection J345 . . . . . . . . . . . . . . . . . . 127
96 - Lights, bulbs, switches - interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
1 Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
1.1 Removing and installing glove box light W6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Karoq 2018 ➤
Electrical system - Edition 10.2017
Contents iii

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with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
1.2 Replace light bulb for glovebox light W6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
1.3 Removing and installing footwell light W9 / W10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
1.4 Removing and installing front footwell light L151 / L152 . . . . . . . . . . . . . . . . . . . . . . . . . . 131
1.5 Removing and installing indicator lamp for central locking SAFELOCK function K133 . . 131
1.6 Removing and installing light 1 for front door ambient lighting L199 / L200 . . . . . . . . . . . . 131
1.7 Removing and installing the light for dash panel ambient lighting L229 / L230 . . . . . . . . . . 132
1.8 Removing and installing luggage compartment light W3 . . . . . . . . . . . . . . . . . . . . . . . . . . 133
1.9 Installing and removing lit make-up mirror W20 / W14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
1.10 Replace front light bulbs for interior light W1 / W13 / W19 . . . . . . . . . . . . . . . . . . . . . . . . 135
1.11 Replace light bulb for rear interior light W47 / W48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
2 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
2.1 Installation overview - controls in the dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
2.2 Installation overview - controls in the centre console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
2.3 Removing and installing light switches EX1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
2.4 Removing and installing start-stop mode switch E693 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
2.5 Removing and installing airbag warning light on front passenger side K145 . . . . . . . . . . 143
2.6 Removing and installing buttons in the dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
2.7 Removing and installing hazard warning lights button E229 . . . . . . . . . . . . . . . . . . . . . . . . 144
2.8 Removing and installing button for seat heating E653 / E654 . . . . . . . . . . . . . . . . . . . . . . 144
2.9 Removing and installing the glove box light switch E26 . . . . . . . . . . . . . . . . . . . . . . . . . . 144
2.10 Removing and installing mirror adjuster switch E43 / E168 . . . . . . . . . . . . . . . . . . . . . . . . 144
2.11 Removing and installing the controls for the electric windows in the driver's door E512 . . 145
2.12 Removing and installing window regulator switch in front passenger door E107 . . . . . . . . 145
2.13 Installing and removing buttons for rear electric windows in rear door E700 / E705 . . . . . . 146
2.14 Removing and installing buttons for electro-mechanical handbrake E538 / Buttons for AUTO
HOLD E540 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
2.15 Removing and installing starter button E378 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
2.16 Removing and installing switch with control of the heated rear seat E128 / E129 . . . . . . 147
2.17 Removing and installing the buttons on the tailgate in the luggage compartment E406 . . 148
2.18 Removing and installing the warning buzzer for tailgate H32 . . . . . . . . . . . . . . . . . . . . . . 149
2.19 Removing and installing the contact switch for makeup mirror F147 / F148 . . . . . . . . . . . . 149
2.20 Removing and installing buttons for sunroof E325 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
2.21 Removing and installing the front interior light/reading light . . . . . . . . . . . . . . . . . . . . . . . . 150
2.22 Removing and installing the rear interior light/reading light . . . . . . . . . . . . . . . . . . . . . . . . 152
2.23 Removing and installing mounting bracket for VarioFlex rear seat connectors . . . . . . . . . . 154
3 Anti-theft warning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
3.1 Summary of components - interior monitoring switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
3.2 Removing and installing the horn H12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
3.3 Removing and installing G578 sensor for anti-theft alarm system . . . . . . . . . . . . . . . . . . . . 157
4 Immobiliser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
4.1 Removing and installing immobiliser reading coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
5 Lane change assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
5.1 Summary of components - lane change assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
5.2 Removing and installing the warning light for lane change assist in the exterior mirror K233 /
K234 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
5.3 Removing and installing lane change assist control unit J769 / J770 . . . . . . . . . . . . . . . . 160
5.4 Calibration of lane change assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
6 Front camera for driver assistance systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
6.1 Removing and installing front camera for driver assistance system . . . . . . . . . . . . . . . . . . 161
6.2 Removing and installing heating plate for windscreen . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
7 Cigarette lighter, socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
7.1 Removing and installing cigarette lighter U1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
7.2 Removing and installing 12-V socket 3 U19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
7.3 Removing and installing inverter with socket, 12 V-230 V U13 . . . . . . . . . . . . . . . . . . . . . . 162
Karoq 2018 ➤
Electrical system - Edition 10.2017
iv Contents

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97 - Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
1 Relay carrier, fuse holder, E-boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
1.1 Installation overview, relay carrier, fuse holder, E-boxes . . . . . . . . . . . . . . . . . . . . . . . . . . 165
1.2 Removing and installing electronics box (E-box) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
1.3 Removing and installing relay and fuse holder in E-box . . . . . . . . . . . . . . . . . . . . . . . . . . 167
1.4 Removing and installing relay and fuse holder behind dash panel . . . . . . . . . . . . . . . . . . 169
2 Control units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
2.1 Installation overview - Control units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
2.2 Removing and installing the vehicle voltage control unit J519 . . . . . . . . . . . . . . . . . . . . . . 174
2.3 Summary of components - data bus diagnostic interface . . . . . . . . . . . . . . . . . . . . . . . . . . 176
2.4 Removing and installing data bus diagnostic interface J533 . . . . . . . . . . . . . . . . . . . . . . . . 178
3 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
3.1 Repair the electric wiring harness and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
4 Unlocking and disassembling the socket housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
5 Clean the contact surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
6 Optical fibre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
7 Vehicle diagnosis, testing and information systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Karoq 2018 ➤
Electrical system - Edition 10.2017
Contents v

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Karoq 2018 ➤
Electrical system - Edition 10.2017
vi Contents

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00 – Technical data
1 Safety instructions
(SRL001126; Edition 10.2017)
⇒ “1.1 Safety precautions for working on vehicles with start-stop
system”, page 1
⇒ “1.2 Safety precautions during road tests in which testing and
measuring equipment is used”, page 1
1.1 Safety precautions for working on vehi‐
cles with start-stop system
When working on vehicles with start/stop system, please observe
the following:
WARNING
Risk of injury from automatic engine start.
♦ On vehicles with activated start-stop system (recogniza‐
ble by a message in the dash panel insert) there is a risk
that the engine can start automatically.
♦ It is therefore necessary to ensure that the start-stop sys‐
tem is deactivated when carrying out work on the vehicle
(switch ignition off, if required switch ignition on again).
1.2 Safety precautions during road tests in
which testing and measuring equipment
is used
Note the following if testers and measuring instruments are used
during road tests:
WARNING
There is a risk of accident from insufficient securing of testers
and measuring instruments.
There is a hazard from the release of the passenger airbag in
the event of an accident.
• Drivers operating testing and measuring equipment while
driving can lead to an accident.
• Increased risk of accident due to unsecured test and
measuring devices.
Always secure the testing and measuring equipment with a belt
on the rear seat and have a second person operate them there.
Karoq 2018 ➤
Electrical system - Edition 10.2017
1. Safety instructions 1

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2 Repair instructions
⇒ “2.1 Contact corrosion”, page 2
⇒ “2.2 Cable routing and securing”, page 2
2.1 Contact corrosion
The use of unsuitable connection elements (screws, nuts, wash‐
ers, etc.) causes contact corrosion.
This is why only connection elements with a special surface coat‐
ings are fitted.
Therefore, the rubber or plastic parts and the adhesives are made
from electrically non-conductive materials.
In case of doubt regarding the re-use of certain parts, the use of
new parts is recommended.
Caution
♦ It is recommended to use only original connection material
as well as spare parts which are tested and compatible
with aluminium, see ⇒ Electronic Catalogue of Original
Parts “ETKA” .
♦ It is recommended to use only Škoda accessories.
♦ Any damage resulting from contact corrosion is not cov‐
ered by the terms of the warranty.
2.2 Cable routing and securing
Caution
Risk of damage to cables, risk of fire and failure of onboard
electrical system!
♦ To rule out mix ups and ensure the original fitting position,
mark the lines before disassembly. This includes lines for
fuel, hydraulics, underpressure, activated charcoal filter,
or electric cables. Make photos or sketches where nec‐
essary.
♦ To prevent damage to lines, sufficient clearance from all
moving or hot components must be ensured in the engine
compartment due to its cramped construction.
♦ All plug connections must be locked using catches, if nec‐
essary with special securing clips, to prevent them dis‐
connecting unintentionally. When connecting, the catches
must engage audibly; for plug connections with catch, lock
the plug connection by pushing in the catch. Check correct
locking if required, by lighting pulling on the plug connec‐
tion, then press the plug connection again up to the stop.
Example of a connector catch with special securing clip -1-.
Primary voltage supply in the relay and fuse carrier under the
dash panel:
Karoq 2018 ➤
Electrical system - Edition 10.2017
2 Rep. gr.00 - Technical data

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Note
After inserting the plug up to the stop -2- to terminal 30+ on the
relay and fuse carrier -3-, secure the plug connection by pushing
the securing clip -1- in -direction of arrow- up to the stop!
Karoq 2018 ➤
Electrical system - Edition 10.2017
2. Repair instructions 3

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3 Battery
⇒ “3.1 Battery types”, page 4
⇒ “3.2 Basic topics”, page 4
3.1 Battery types
WARNING
When working on the battery wear proper protection and ob‐
serve safety precautions (see “Electrical System - General
notes” ⇒ Electrical System - General notes; Rep. gr. 27 Sec‐
tion “27”). If a note cannot be accessed, open the Workshop
Manual “Electrical System - General Notes” manually in “EL‐
SA”.
Batteries with a magic eye and plugs covered in adhesive tape
are factory-installed in all vehicles (except vehicles with start-stop
system).
In vehicles with start/stop system, (depending on types of engines
see ⇒ Electronic Catalogue of Original Parts“ETKA” ), a fleece
battery (AGM) or a battery with magic eye with EFB technology
(Enhanced Flooded Battery) is installed.
The AGM battery is also installed in vehicles with auxiliary heating
and additional heating.
Description of the function, test and maintenance of the previous
batteries see “Electrical System – General notes” ⇒ Electrical
System – General notes; Rep. gr. 27 . If a note cannot be ac‐
cessed, open the Workshop Manual “Electrical System - General
Notes” manually in “ELSA”.
3.2 Basic topics
Warning instructions and safety precautions when working on the
battery
All the notes and comments for this chapter can be found in the
Workshop Manual ⇒ Electrical System - General notes; Rep. gr.
27 . If a note cannot be accessed, open the Workshop Manual
“Electrical System - General Notes” manually in “ELSA”, Section
“27”.
Karoq 2018 ➤
Electrical system - Edition 10.2017
4 Rep. gr.00 - Technical data

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with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
27 – Starter, current supply, CCS
1 Battery
⇒ “1.1 Assembly overview - battery”, page 5
⇒ “1.2 Removing and installing battery”, page 6
⇒ “1.3 Disconnecting and reconnecting battery”, page 8
⇒ “1.4 Removing and installing battery tray”, page 10
⇒ “1.5 Checking battery”, page 10
⇒ “1.6 Charging battery”, page 10
⇒ “1.7 Removing and installing earth lead with battery monitoring
control unit J367 ”, page 11
⇒ “1.8 Adapt the battery monitoring control unit J367 ”,
page 12
1.1 Assembly overview - battery
1 - Adjustment link
2 - Screw
❑ 15 Nm
3 - Nut
❑ 6 Nm
4 - Plus terminal
❑ with battery-cable termi‐
nal
❑ disconnect and fit on
⇒ “1.3 Disconnecting
and reconnecting bat‐
tery”, page 8
5 - Cap
❑ for plus terminal
6 - Heat shield collar
7 - Cover
❑ for positive pole
8 - Cover
❑ for negative pole
9 - Electrical plug connection
❑ Battery monitor control
unit - J367-
❑ Follow the work proce‐
dure when connecting
the earth cable
⇒ “1.3 Disconnecting
and reconnecting bat‐
tery”, page 8
10 - Nut
❑ 9 Nm
Karoq 2018 ➤
Electrical system - Edition 10.2017
1. Battery 5

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11 - Earth cable
12 - Earth cable
❑ with battery-cable terminal and battery monitoring control unit - J367-
❑ Removing and installing
⇒ “1.7 Removing and installing earth lead with battery monitoring control unit J367 ”, page 11
❑ disconnect and fit on ⇒ “1.3 Disconnecting and reconnecting battery”, page 8
❑ Adapt the battery monitoring control unit - J367-
⇒ “1.8 Adapt the battery monitoring control unit J367 ”, page 12
13 - Battery - A-
❑ Removing and installing ⇒ “1.2 Removing and installing battery”, page 6
❑ disconnect and fit on ⇒ “1.3 Disconnecting and reconnecting battery”, page 8
14 - Battery carrier
❑ Removing and installing ⇒ “1.4 Removing and installing battery tray”, page 10
15 - Nut
❑ 9 Nm
16 - Screw
❑ 3 units
❑ 9 Nm
1.2 Removing and installing battery
WARNING
Observe the instructions for handling the battery, warning in‐
formation and safety instructions for led-acid batteries “Elec‐
trical System- General Notes” ⇒ Electrical System- General
Notes; Rep. gr. 27 . If a note cannot be accessed, open the
Workshop Manual “Electrical System - General Notes” man‐
ually in “ELSA”.
Removing
– Switch off all electrical components and ignition, take out the
ignition key.
– Open the cover of the heat protection sleeve.
– Open cover -4-, loosen nut -6- and disconnect battery earth
strap -5-.
– Open cover -3-, loosen nut -2- and connect positive cable to
the battery -1-.
Karoq 2018 ➤
Electrical system - Edition 10.2017
6 Rep. gr.27 - Starter, current supply, CCS

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– Pull out heat protection sleeve -4-.
– Unscrew screw -2- and remove securing bracket for battery
-1-.
– Slide the battery out of the battery tray and remove it upwards.
Installing
Installation is performed in the reverse order, pay attention to the
following points:
– Insert battery into the battery tray -1- so that the battery base
is resting against the rear and the sides -arrows- up to the stop.
– The nose -arrow- on the securing bracket -1- must enter the
recess in the battery base.
Note
The mounting bracket has three mounting positions depending
on the size of the battery to be installed -1-. -2- and -3-.
Karoq 2018 ➤
Electrical system - Edition 10.2017
1. Battery 7

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– Attach the fixing bracket -1- to the battery and tighten the fixing
screw -2-.
– With the ignition and electrical components switched off, con‐
nect the positive terminal of the battery -3- and tighten the nut
-4-.
– Note the work sequence when connecting the negative termi‐
nal and note the measures after reconnecting the battery
⇒ “1.3.2 Reconnecting battery”, page 9 .
Caution
There are certain dangers if the battery is incorrectly mounted
or mounted loosely:
♦ Shortened service life due to damage from vibration (dan‐
ger of explosion)
♦ Damage to the grid plates of the battery.
♦ Damage to battery housing by securing bracket (possibil‐
ity of acid leaking, with high consequential costs)
♦ Poor crash safety
Specified torques
♦⇒ “1.1 Assembly overview - battery”, page 5
1.3 Disconnecting and reconnecting battery
⇒ “1.3.1 Disconnect battery”, page 8
⇒ “1.3.2 Reconnecting battery”, page 9
1.3.1 Disconnect battery
WARNING
Observe safety instructions and safety precautions when work‐
ing with pyrotechnic modules:
If work is carried out on pyrotechnic modules (eg airbag, belt
tensioner), the battery must be disconnected, with the ignition
switched on, as described in the following description, see ⇒
Body - assembly work inside; Rep. gr. 69 ; Airbag system;
General safety instructions .
– Switch off all electrical components and ignition, take out the
ignition key.
– Open the cover of the heat protection sleeve.
Karoq 2018 ➤
Electrical system - Edition 10.2017
8 Rep. gr.27 - Starter, current supply, CCS

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– Open cover -1-, loosen nut -3- and disconnect battery earth
strap -2- only.
Note
♦ Only disconnect the positive lead of the battery when the bat‐
tery is removed.
♦ If both terminals are disconnected, only then disconnect pole
terminal (-) from battery earth.
1.3.2 Reconnecting battery
WARNING
Observe safety instructions and safety precautions when work‐
ing with pyrotechnic modules:
If work has been carried out on pyrotechnic modules (eg air‐
bag, belt tensioner), the battery must be connected, with the
ignition switched on, as described in the following description,
see ⇒ Body - assembly work inside; Rep. gr. 69 ; Airbag sys‐
tem; General safety instructions .
Note
♦ Neither grease nor oil the battery terminals.
♦ The battery pole terminals must only be fitted by hand without
using any force in order to avoid damaging the battery hous‐
ing.
♦ Install the battery pole terminals in such a way that the battery
poles are flush with the terminals or protrude.
♦ If both terminals are disconnected, only then disconnect the
battery positive pole terminal (+).
♦ After connecting the battery and switching on the ignition, the
warning light for the stability programme TCS/ESC and the
warning light for the power-assisted steering remain lit. The
warning lights go out automatically after driving a few metres
forward. Thereby the steering angle sender - G85- is activated
again.
– Switch off all electrical components and take out the ignition
key.
Karoq 2018 ➤
Electrical system - Edition 10.2017
1. Battery 9

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unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
– Disconnect the plug -2- from the control unit -3- before con‐
necting to the battery.
– Fit pole terminal (-) with control unit onto the “-” pole of the
battery, see fig., and tighten the fixing nut -1-.
– Fit the plug -3- again onto the control unit.
When the battery is reconnected, perform the following opera‐
tions depending on the vehicle equipment:
♦ Set clock.
♦ Check the power windows ⇒ Maintenance ; Booklet Karoq .
♦ Connect the ⇒ Vehicle diagnostic tester, query the event mem‐
ory and delete any event memory entries.
Specified torques
♦⇒ “1.1 Assembly overview - battery”, page 5
1.4 Removing and installing battery tray
Removing
– Remove air filter housing in front of the battery (does not apply
to 1.0, 1.5 TSI engine) ⇒ Rep. gr. 23 ; Air filter diesel engines
or ⇒ Rep. gr. 24 ; air filter petrol engines.
– Remove the battery
⇒ “1.2 Removing and installing battery”, page 6 .
– Unscrews screws -3- and nuts -2- and remove battery tray
-1-.
Installing
Installation is performed in the reverse order, pay attention to the
following points:
Specified torques
♦⇒ “1.1 Assembly overview - battery”, page 5
1.5 Checking battery
All the notes and comments to the work procedure for checking
the battery can be found in the Workshop Manual “Electrical Sys‐
tem – General notes” ⇒ Electrical System – General notes; Rep.
gr. 27 . If a note cannot be accessed, open the Workshop Manual
“Electrical System - General Notes” manually in “ELSA”.
1.6 Charging battery
– Open the cover of the heat protection sleeve.
Karoq 2018 ➤
Electrical system - Edition 10.2017
10 Rep. gr.27 - Starter, current supply, CCS

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unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
– If fitted, open the cover -2- and connect the red charging ter‐
minal to the battery positive (+) terminal -1-.
– On vehicles with a battery monitoring control unit - J367- ,
connect the black terminal of the charger to earthing point
-3-.
All other notes and comments to this chapter can be found in the
Workshop Manual “Electrical system - General notes” ⇒ Electri‐
cal system - General notes; Rep. gr. 27. . If a note cannot be
accessed, open the Workshop Manual “Electrical System - Gen‐
eral Notes” manually in “ELSA”.
1.7 Removing and installing earth lead with
battery monitoring control unit - J367-
Removing
– Remove the battery
⇒ “1.2 Removing and installing battery”, page 6 .
– Undo nuts -1- and remove the pole terminal with the control
unit -3- from the battery-cable terminal.
– Disconnect connector -2-.
– Unscrew the nuts -2- and remove the earth cable -1- with bat‐
tery monitoring control unit - J367- .
Installing
Installation is performed in the reverse order, pay attention to the
following points:
– Follow the work procedure when connecting the battery
⇒ “1.3.2 Reconnecting battery”, page 9 .
– Adapt the battery monitoring control unit - J367-
⇒ “1.8 Adapt the battery monitoring control unit J367 ”,
page 12 .
Specified torques
♦⇒ “1.1 Assembly overview - battery”, page 5
Karoq 2018 ➤
Electrical system - Edition 10.2017
1. Battery 11

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unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
1.8 Adapt the battery monitoring control unit
- J367-
This is performed only on vehicles with a battery monitoring con‐
trol unit - J367- when replacing the battery with a new one of
another type or with higher capacity.
After a new start battery is installed and the battery has been par‐
ameterised, the technical data of the new battery are sent to the
battery monitoring control unit - J367- .
– ⇒ Vehicle diagnostic tester connect and select the operating
mode “Targeted fault-finding”.
– Select the “Selected Functions/Components” and subse‐
quently the following menu points using the button “Skip”:
♦ Systems capable of diagnostics
♦ 0019 - Data bus diagnostic interface - J533-
♦ 0019 - Data bus diagnostic interface - J533- function
♦ 19 - Adapt battery
Karoq 2018 ➤
Electrical system - Edition 10.2017
12 Rep. gr.27 - Starter, current supply, CCS