Volvo S40 2005 Manual

Vehicles with SRS (Airbag)/SIPS bag/IC
(Inflatable Curtain)
Table of contents 1:2, 2:2
Abbreviations
How to use the wiring diagrams 1:2, 2:2
Electrical distribution 1:2, 2:2
Relays
❍Ignition switch and relays
❍Distribution box in engine compartment R1-R14
❍Central Electronic Module (CEM) R15-R18
❍Relays – soldered
Fuses
❍Engine compartment distribution box F1-F8
❍Engine compartment distribution box F9-F18
❍Engine compartment distribution box F20-F32
❍Engine compartment distribution box F33-FH1
❍Central Electronic Module (CEM) F43-F52
❍Central Electronic Module (CEM) F53-F66
❍Central Electronic Module (CEM) F68-F86
❍Battery, PF1-PF2
Ground connections
❍Overview
❍31/3 - 31/10
❍31/11 - 31/66
❍31/67 - 31/84
❍31/88 - 31/114
❍31/115 - Ground connections in chassis
Control modules
❍Overview of locations
❍Overview of designations
❍Central Electronic Module (CEM) 1:2, 2:2
❍Data communication Low speed CAN 1:2, 2:2
❍Data communication LIN 1:2, 2:2
❍Data communication High speed CAN
❍Data communication MOST
❍Start Control Module (SCU)
❍Accessory Electronic Module (AEM)
Group 23 Fuel system
❍Engine management system, 4-cyl 1.8l 1:2, 2:2
❍Engine management system, 5-cyl 1:2, 2:2
❍Engine management system, 5-cyl Turbo 1:2,
2:2
❍Engine management system Diesel 1:2, 2:2
Frame contained PDF file, click here to view

❍Emission control 4-cyl 1.8l
❍Emission control, 5-cyl
❍Emission control, 5-cyl Turbo
Group 26 Cooling system
❍Cooling fan
❍Cooling fan Diesel
Group 27 Engine control
❍Cruise control
❍Cruise control, Diesel
Group 32 Alternator and voltage regulator
❍Power supply
❍Power supply, Diesel
Group 33 Starting system
❍Starting system
❍Starting system, Diesel
Group 35 Lighting
❍High and low beam
❍High and low beam (Bi-Xenon)
❍Manual beam length adjustment
❍Automatic head light leveling (Bi-Xenon)
❍Running/Parking lights, Tail lights
❍Running/Parking lights, Tail lights (Bi-Xenon)
❍Fog lights
❍Fog lights LHD, Japan
❍Brake lights
❍Reversing lights
❍Follow-me-home lighting
❍Interior lighting 1:2, 2:2
❍Instrument and control illumination
❍Auxiliary light
Group 36 Additional electrical equipment
❍Rain Sensor
❍Direction indicators and flashing hazard lights
❍Direction indicators and flashing hazard lights
(Bi-Xenon)
❍Windshield wiper/washer
❍Headlight washer
❍Wiper/washer, rear window
❍Horn
❍Immobilizer/Control module steering column
lock (SCL)
❍Keyless Vehicle 1:2, 2:2
❍Anti-theft alarm
❍Parking assistance, rear
❍Parking assistance, front
❍Accessory Electronic Module (AEM)
Group 37 Wiring and fuses
❍Diagnostics system
❍12V outlet
❍Tow hitch cable harness, 4-pin
❍Towbar cable harness, 7-pin

❍Towbar cable harness, 13-pin
Group 38 Instruments
❍Seat belt reminder
❍Driver information module
Group 39 Other
❍Multimedia & Traffic information
❍Audio 1:2, 2:2
❍Cellular phone 1:2, 2:2
❍Subwoofer
❍Handsfree
Group 43 Transmission
❍Automatic transmission AW55-51
❍Shift interlock
❍Transmission M66
Group 59 Brake system
❍Brake control system
❍Brake control system & STC
❍Brake control system & DSTC
Group 64 Steering
❍Electronic power steering
Group 83 Doors and openings
❍Central locking, front doors
❍Central locking, rear doors
❍Central locking, trunk lid/tailgate
❍Child safety lock
❍Central locking, fuel filler flap
❍Signal receiver, remote-control, central locking
❍Power windows, front doors
❍Power windows, rear doors
❍Power sunroof
Group 84 Exterior decorative elements, etc.
❍Power door mirrors
❍Heated door mirrors
❍Heated rear window
Group 85 Interior equipment
❍Power driver’s seat with memory function, LHD
❍Power driver’s seat with memory function, RHD
❍Power driver’s seat
❍Power passenger seat
❍Heated seats
Group 87 Climate controls
❍Climate control system 4-cyl 1.8l 1:2, 2:2
❍Climate control system 1:2, 2:2
❍Climate control system Diesel 1:2, 2:2
❍Climate control system PTC element
❍Parking heater, auxiliary heater
❍Relay, electric engine heater
Group 88 Internal equipment
❍Auto-dimming rear-view mirror
❍Supplemental Restraint System (SRS) 1:2, 2:2

Connectors
❍64/18 - 64/25G
❍64/30:1-14
❍64/30:15-20 - 64/31:1-5
❍64/31:6-20
❍64/34 - 64/41
❍64/43
❍64/45
❍64/47 - 64/48 S40
❍64/48 V50 - 64/49
❍64/50 - 64/51
❍64/51 - 64/79V
❍64/81 - 64/90:1-11
❍64/90:12-26
❍64/90:27-41
❍64/111
❍64/112
❍64/113
❍64/120 - 64/425
❍64/545 - 64/600
❍64/650 - 64/816
❍64/817 - 64/978
Branching points
❍64/1300
❍63/5 - 63/29
❍63/30 - 63/65
❍63/67 - 63/95
❍63/97 - 63/130
❍63/139 - 63/196
❍63/198 - 63/217 V50
❍63/218 - 63/228
❍63/229 - 63/422
❍63/504G - 63/616
Cable harnesses’ routing in the vehicle
❍Harness engine, Gasoline 4-cyl & 5-cyl
❍Harness engine, Gasoline 5-cyl, Turbo & Diesel
❍Harness engine compartment, 4-cyl and 5-cyl &
Turbo
❍Harness engine compartment, Diesel &
Harness Dashboard
❍Harness Infotainment
❍Harness Floor S40
❍Harness Floor V50
❍Harness Ceiling S40/V50
❍Harness Tunnel
❍Harness Driver and Passenger door
❍Harness Rear door, right and left
❍Harness Trunk, S40/V50
Component illustrations
❍1/1 - 2/64
❍2/80 - 2/192

❍2/193 - 3/27
❍3/35 - 3/75
❍3/76 - 3/93
❍3/94 - 3/155
❍3/156 - 3/256
❍3/258 - 4/46
❍4/46 - 4/93
❍4/102 - 6/1
❍6/2 - 6/29
❍6/32 - 6/64
❍6/65 - 6/103
❍6/104 - 7/6
❍7/6 - 7/24
❍7/24 - 7/56
❍7/57 - 7/82
❍7/93 - 7/120
❍7/121 - 7/156
❍7/156 - 7/179
❍7/182 - 8/28
❍8/30 - 8/40
❍8/41 - 8/68
❍8/71 - 8/99
❍8/119 - 8/133
❍8/134 - 9/25
❍9/30 - 10/5
❍10/6 - 10/19
❍10/22 - 10/48
❍10/50 - 10/68
❍16/69 - 11/1
❍15/31 - 16/16
❍16/26 - 16/60
❍16/62 - 16/126
❍16/127 - 16/139
❍16/140 - 20/3-7
❍20/22 - 31/52
❍31/66 - 31/110
❍31/112 - 64/30
❍64/31 - 64/50
❍64/51 - 64/545
❍64/599 - 64/978
❍64/979 - 64X/322
Index 1:2, 2:2
List of components
❍List of components 1:4
❍List of components 2:4
❍List of components 3:4
❍List of components 4:4

2005
VOLVO
TP 3978202

Frame contained PDF file, click here to view

226
1/1 Battery
2/16 Relay, rear window wiper
2/17 Relay, horn
2/22 Relay, climate control system
2/23 Relay fuel pump
2/32 Main relay, engine management
system
2/34 Relay, front fog lights
2/35 Relay, starter motor
2/63 Relay, high beam
2/64 Relay, auxiliary light (accessory)
2/80 Relay, reversing lights
2/82 Relay, heated rear window
2/89 Relay, interior lighting
2/92 Relay, windshield washer motor
2/93 Relay, rear window washer motor
2/142 Relay, pre-heater, fuel filter
2/159 Relay, infotainment
2/182 Relay, headlight washer motor
2/192 Relay (230V) electric engine heater,
4-CYL
2/192 Relay (230V) electric engine heater,
5-CYL
2/193 Relay, comfort functions
3/1 Ignition switch
3/4 Control unit, cruise control (SWS)
3/6 Switch, hazard warning flashers
3/8 Switch, electrically heated rear window/rear-
view mirrors
3/9 Contact brake light
3/10 Reversing light contact
3/25 Switch, power sunroof
3/26 Switch unit, power driver’s seat
3/27 Switch unit, power passenger seat
3/35 Switch, handle trunk/tailgate
3/37 Contact horn
3/39 Contact clutch pedal, Gasoline
3/39 Contact clutch pedal, Diesel
3/46 Seat contact, passenger seat
3/47 Parking brake contact
3/60 Switch, auxiliary lights
3/62 Hood alarm contact
3/74 Lock unit, driver’s door
3/75 Lock unit, passenger door
3/76 Lock unit, left rear door
3/77 Lock unit, right rear door
3/78 Lock unit, trunk lid/tailgate
3/80 Switch, central locking driver’s door
3/81 Switch, power windows driver’s door
3/82 Switch, central locking passenger door
3/83 Switch, power window passenger door
3/85 Power window switch, left rear door
3/86 Power window switch, right rear door
3/93 Contact belt buckle, driver’s seat
3/94 Contact belt buckle, passenger seat
3/95 Spin control switch
3/111 Switch unit, lights
3/112 Climate Control Module (CCM)
3/117 Switch unit, ceiling light
3/126 Driver’s Door Module (DDM)
3/127 Passenger Door Module (PDM)
3/128 Left Rear Door Module (LDM)
3/129 Right Rear Door Module (RDM)
3/155 Program selector, automatic transmission
3/156 Gear Selector Module (GSM)
3/157 Switch, Passenger Airbag Cut Off Switch
(PACOS)
3/173 Switch, trunk lid/tailgate private lock
3/174 Switch, reduced alarm
3/217 Belt buckle contact, left rear
3/218 Belt buckle contact, center rear
3/219 Belt buckle contact, right rear
3/254 Steering Wheel Module (SWM)
3/255 Position sensor, driver’s seat
3/256 Position sensor, passenger seat
3/258-3/265 Contact, locking
3/267 Control unit, telematics
4/7 Combustion Preheater Module (CPM)
4/9 Supplemental Restraint System Module (SRS)
4/16 Brake Control Module (BCM)
4/28 Transmission Control Module (TCM)
4/31 Fan control module
4/33 Sunroof control module
4/46 Control module engine (ECM), 4-CYL
4/46 Control module engine (ECM), 5-CYL
4/46 Control module engine (ECM), Turbo
4/46 Engine Control Module (ECM), Diesel
4/52 Power Seat Module (PSM)
4/56 Central Electronic Module (CEM)
4/71 Cooling fan control module
4/78 Accessory Electronic Module (AEM)
4/82 Differential Electronic Module (DEM)
4/83 Control module fuel pump
4/86 Control module, Parking Assistance Module
(PAM)
4/93 Keyless Vehicle Module (KVM)
4/102 Steering Column Lock Module (SCL)
4/103 Remote Entry (RRX)
4/103 Remote Entry (RRX), Keyless vehicle
4/109 Glow plug control module
4/110 Trailer Module (TRM)
4/111 Additive Dosing Module (ADM)
4/112 Control module, gas discharge lamp master, left
4/113 Control module, gas discharge lamp slave, right
5/1 Driver Information Module (DIM)
6/1 Wiper Motor Module (WMM)
6/2 Washer pump
6/16 Motor driver’s seat, backrest angle
6/17 Motor driver’s seat, up/down front edge
6/18 Motor driver’s seat, up/down rear edge
6/19 Motor driver’s seat, fore/aft
6/20 Motor passenger seat, fore/aft
6/25 Starter motor
6/26 Generator
6/28 Motor, passenger compartment fan
6/29 Motor, electric cooling fan
6/32 Rear window wiper motor
6/33 Fuel pump
6/35 Fuel pump, auxiliary heater
6/37 Lock motor, fuel filler flap
6/38 Motor, left headlight adjustment
6/39 Motor, right headlight adjustment
6/48 Damper motor, recirculation
6/62 Power rear-view mirror driver’s door
6/63 Power rear-view mirror passenger door
6/64 Motor passenger seat, backrest angle
6/65 Motor passenger seat, up/down front edge
6/66 Motor passenger seat, up/down rear edge
6/67 Pump, fuel leakage control
6/71 Electrical Power Steering Module (EPS)
6/73 Coolant pump, auxiliary heater
6/95 Damper motor, temperature, left-hand side
6/96 Damper motor, temperature, right-hand side
List of components 1:4

227
6/99 Engine EGR
6/102 Damper motor, defroster
6/103 Damper motor, floor/ventilation
6/104 Pump, high pressure headlight washer
6/114 Vacuum pump
6/117 Interior temperature sensor
6/120 Engine throttle body
7/3 Temperature sensor battery
7/4 Brake fluid level sensor
7/5 Washer fluid level sensor
7/6 Oil pressure monitor, 4-CYL
7/6 Oil pressure monitor, 5-CYL
7/6 Oil pressure monitor, Turbo
7/6 Oil pressure monitor, Diesel
7/8 Pressure sensor, climate control system
7/12 Solar sensor, twilight sensor and indicator
alarm
7/15 Heated oxygen sensor, front
7/16 Sensor, coolant temperature
7/17 Mass air flow sensor MAF, 5-CYL
7/17 Mass air flow sensor MAF, Turbo
7/17 Mass airflow sensor MAF, Diesel
7/24 Knock sensor front, 4-CYL
7/24 Knock sensor front, 5-CYL
7/24 Knock sensor front, Turbo
7/25 Impulse sensor, 4-CYL
7/25 Impulse sensor, 5-CYL
7/25 Impulse sensor, Turbo
7/25 Impulse sensor, Diesel
7/31 Sensor ABS, front left
7/32 Sensor ABS, front right
7/41 Temperature sensor evaporator
7/51 Accelerator pedal sensor
7/56 Sensor ABS, rear left
7/57 Sensor ABS, rear right
7/61 Sensor input speed
7/62 Sensor output speed
7/69 Sensor outdoor temperature
7/71 Sensor boost pressure
7/74 Sensor oil temperature, automatic transmission
7/77 Temperature sensor, intake air 1
7/77 Temperature sensor, intake air 2
7/81 Pressure sensor, intake manifold
7/82 Heated oxygen sensor, rear
7/93 Occupant Weight Sensor (OWS)
7/100 Level sensor alarm, S40
7/100 Level sensor alarm, V50
7/108 Side impact sensor, rear left
7/109 Side impact sensor, rear right
7/110 Sensor temperature driver’s seat
7/111 Sensor temperature passenger seat
7/115 Side impact sensor, front left
7/116 Side impact sensor, front right
7/120 Angle sensor, Bi-Xenon rear
7/121 Angle sensor, Bi-Xenon front
7/122 Mass movement sensor, front
7/123 Sensor clutch pedal, Gasoline
7/123 Sensor clutch pedal, Diesel
7/124 Sensor brake pedal
7/131-7/134 Sensor parking assistance 1-4
7/143 Sensor fuel level, pump side
7/149 Rain Sensor Module (RSM)
7/154 Sensor fuel temperature
7/156 Pressure and temperature sensor fuel, 5-CYL
7/156 Pressure and temperature sensor fuel, Turbo
7/158 Mass movement sensor rear
7/159 Air quality sensor
7/162 Pressure sensor, fuel line
7/164 Body Sensor Cluster (BSC)
7/165 Pressure and temperature sensor, intake mani-
fold
7/172 Position sensor camshaft, intake side
7/173 Position sensor camshaft, exhaust side
7/178 Front impact sensor, right
7/179 Front impact sensor, left
7/182 Remote control IR sensor, RTI
7/193 Position sensor turbo
7/194 Sensor belt roller, driver
7/195 Sensor belt roller, passenger
7/204 -7/207Sensor parking assistance 5-8
8/3 Electromagnetic clutch, climate control system
8/6-10 Injection valves
8/18 EVAP valve
8/19 Solenoid, variable valve timing, intake
8/28 Turbocharger control valve
8/30 Igniter airbag, driver’s side
8/31 Airbag igniter, passenger side
8/32 Igniter, airbag stage 2, passenger side
8/33 Igniter, belt tensioner, driver’s side
8/34 Igniter, belt tensioner, passenger side
8/36 Solenoid shift lock
8/37 Automatic transmission
8/38 Shift solenoid 1
8/39 Shift solenoid 2
8/40 Lock-up solenoid
8/41 Pressure solenoid
8/48 Auto-dimming rearview mirror
8/51 Igniter side airbag, driver’s side
8/52 Igniter side airbag, passenger side
8/55 Igniter, left rear belt tensioner
8/56 Igniter, right rear belt tensioner
8/61 Igniter airbag, driver’s side, stage 2
8/66 Igniter, left inflatable curtain
8/67 Igniter, right inflatable curtain
8/68 Bypass valve
8/71 Throttle solenoid
8/72 Shift solenoid 3
8/73 Shift solenoid 4
8/74 Shift solenoid 5
8/77 Control valve fuel volume
8/81 Solenoid, variable valve timing outlet
8/82 Solenoid, variable turbo geometry
8/84 Switch, vacuum pump
8/92 Lap belt tensioner, driver
8/99 Igniter, steering column
8/119 Pressure monitor, climate control system
8/120 EGR valve
8/120 EGR valve, Diesel
8/121 Valve coolant
8/127 Pressure switch, climate control system
8/128 Driver’s belt force limiter
8/129 Passenger belt force limiter
8/131 Shut-off valve, expansion tank
8/132 Control valve inlet
8/133 Control valve fuel pressure
8/134 Solenoid, reverse interlock, manual
9/1 Front 12V outlet
9/2 Heated rear window
9/12 Seat Heater Module (SHM), driver’s side
9/13 Seat Heater Module (SHM), passenger side
9/16 Heating coil, backrest driver’s seat
9/17 Heating coil, backrest passenger seat
9/18 Heating coil, seat cushion driver’s seat
9/19 Heating coil, seat cushion passenger seat
9/25 Rear 12V outlet
List of components 2:4

228
9/30 Auxiliary heater
9/32 PTC resistor, oil trap
9/33 Electrically heated rear-view mirror, driver’s
door
9/34 Electrically heated rear-view mirror, passenger
door
9/38 Electrically heated fuel filter
9/41 PTC-element
10/1 Lamp housing, front left
10/2 Lamp housing, front right
10/3 License plate lighting
10/5 Fog light, front left
10/6 Fog light, front right
10/11 Running/parking light, front left
10/12 Running/parking light, front right
10/13 Direction indicator, front left
10/14 Direction indicator, front right
10/15 Direction indicator, rear-view mirror driver’s
door
10/16 Direction indicator, rear-view mirror passenger
door
10/17 Lamp housing, rear right
10/18 Lamp housing, rear left
10/19 Brake light extra
10/22 Ceiling light
10/24 Cargo compartment lighting
10/25 Ceiling light, cargo compartment
10/29 Glove compartment lighting
10/43 Brake light, right
10/44 Tail light 1, right
10/45 Tail light 2, right
10/46 Fog light, right rear
10/47 Direction indicator, right rear
10/48 Reversing light, right
10/50 Brake light, left
10/51 Tail light 1, left
10/52 Tail light 2, left
10/53 Fog light, left rear
10/54 Direction indicator, left rear
10/55 Reversing light, left
10/64 High beam, right
10/65 Auxiliary light, front right
10/66 Low beam, right
10/68 High beam, left
10/69 Auxiliary light, front left
10/70 Low beam, left
10/97 Courtesy lighting, left
10/102 Courtesy lighting, right
10/114 Vanity mirror lighting, left
10/115 Vanity mirror lighting, right
10/148 Lighting, rear-view mirror driver’s door
10/149 Lighting, rear-view mirror passenger door
10/150 Rear reading light
11/1 Suspended fuse (cargo compartment)
15/31 Distribution box in engine compartment
16/1 Infotainment Control Module (ICM)
16/3 Speaker, passenger door
16/4 Speaker, driver’s door
16/5 Speaker, right rear door
16/6 Speaker, left rear door
16/9 Window antenna
16/10 Horn 1
16/11 Horn 2
16/16 Window antenna amplifier
16/26 Speaker, dashboard middle
16/26 Speaker, dashboard middle, RTI
16/35 Siren (SCM), S40
16/35 Siren (SCM), V50
16/46 RTI Display
16/47 GPS antenna RTI
16/49 Traffic Message Channel Module (TMC)
16/55 Treble speaker, driver’s door
16/56 Treble speaker, passenger door
16/60 Phone Module (PHM)
16/62 Hand unit, cellular phone
16/64 Antenna, cellular phone
16/79 Subwoofer Module (SUB)
16/93 Control module, cellular phone handsfree
16/94 AM/FM Tuner Module (AFM)
16/98 Microphone
16/105 Audio Module (AUD)
16/107 Media Player Module (MPM)
16/108 Multimedia Module (MMM)
16/126 Holder, handsfree cellular phone
16/127 Microphone, handsfree cellular phone
16/128-16/131Antenna door lock front
16/132 Antenna door lock cargo compartment
16/133 Antenna door lock cabin 1 rear
16/134 Antenna door lock cabin 2
16/135 Antenna door lock cabin 3
16/136 Treble speaker, left rear door
16/137 Treble speaker, right rear door
16/138 Rear window antenna, right
16/139 Global Positioning System Module (GPS)
16/140 SIM card reader
16/141 Interference filter, rear window, left
16/142 Interference filter, rear window, right
17/13 Data link connector
17/19 12V outlet, cargo compartment
17/37 4-pin outlet, tow hitch cable harness
17/38 7-pin outlet, tow hitch cable harness
17/39 13-pin outlet, tow hitch cable harness
18/4 Contact reel
20/3-7 Spark plug and ignition coil
20/22-25 Glow plug
31/3 Ground connection, Left strut tower
31/4 Ground connection, Engine
31/6 Ground connection, A-pillar driver side
31/10 Ground connection, A-pillar passenger side
31/11 Ground connection, Left side rear, S40
31/11 Ground connection, Left side rear, V50
31/12 Ground connection, Right side rear, S40
31/12 Ground connection, Right side rear, V50
31/52 Ground connection, Left strut tower
31/66 Ground connection, Left B-pillar
31/67 Ground connection, Right B-pillar
31/80 Ground connection, Left strut tower
31/83 Ground connection, A-pillar driver side
31/84 Ground connection, A-pillar passenger side
31/88 Ground connection, Engine
31/89 Ground connection, Engine
31/102 Ground connection, Frame member, Gasoline
31/102 Ground connection, Frame member, Diesel
31/110 Ground connection, Right strut tower
31/112 Ground connection, Right strut tower
31/114 Ground connection, Left strut tower
31/115 Ground connection, Left A-pillar
31/116 Ground connection, Right A-pillar
31/119 Ground connection, Left strut tower
List of components 3:4

229
63/no. Branching point
64/12 Connector
64/18 Connector
64/25G Connector
64/30 Connector
64/31 Connector
64/34 Connector
64/40 Connector
64/41 Connector
64/43 Connector
64/45 Connector
64/47 Connector
64/48 Connector S40
64/48 Connector V50
64/50 Connector
64/51 Connector
64/79V Connector
64/81 Connector
64/90 Connector
64/111 Connector
64/112 Connector
64/113 Connector
64/322 Connector
64/425 Connector
64/545 Connector
64/599 Connector
64/600 Connector
64/814 Connector
64/815 Connector
64/816 Connector
64/817 Connector
64/861 Connector
64/862 Connector
64/977A Connector
64/978 Connector
64/979 Connector
64/979G Connector
F/no. Fuse
F/no. Fuse
FH/no. Fuse in holder
PF/no. Main fuse by battery
R/no. Relay
R/no. Relay
R/no. Relay
10X/17 Connector interface, original car
10X/18 Connector interface, original car
16X/105 Connector interface, original car
17X/19 Connector interface, original car
64X/12 Connector interface, original car
64X/322 Connector interface, original car
List of components 4:4

Volvo Car Corporation
Vehicles with SRS (Airbag)/SIPS bag/
IC (Inflatable Curtain)
Warning!
Extra caution must be exercised when working on vehicles equipped with SRS/SIPS bag/IC
in order to avoid:
1. Personal injuries when performing repair work.
2. Damage or malfunction of the SRS/SIPS bag/IC system.
Work involving the SRS/SIPS bag/IC systems or other components in the vehicle that may
affect the SRS/SIPS bag/IC systems must always be performed by an authorized Volvo
workshop.
In case of doubt, consult the SRS and SIPS bag/IC service manual.
Is the vehicle equipped with SRS/SIPS bag/IC ?
Vehicles with SRS are most easily recognized by the letters SRS in the center of the steering
wheel. If the vehicle also has a passenger side airbag, the letters SRS are stamped on the
dashboard above the glove compartment. SRS vehicles from 1993 and onward also have
explosive seat belt tensioners. SIPS bags are only installed on SRS vehicles from 1995 and
onward. SIPS bag decals are located on the windshield and seat compartment. Vehicles with
IC can be recognized by the letters IC on the C/D panel (4 door) or the B panel (5 door).
General recommendations
• Be especially careful when working on or around SRS, SIPS, and IC components.
• Make sure that no wires are pinched, frayed, or pierced.
• Never install accessories by the sensors.
• Where applicable, work on the steering wheel, steering shaft, or steering gear must be done
in accordance with the methods in the SRS section of VADIS.
• Certain components of the aforementioned systems must be grounded while working. Read
the appropriate sections in VADIS.
• Install no accessories in the areas between the A and B posts, the B and C posts, and the C
and D posts.
Test terminal
Data link connector in the passenger compartment.
Changes introduced up to and incl. June 2004
Any changes made to the vehicles after this date are not included in the
manual. If necessary refer to service bulletins.
Volvo models are sold in versions adapted for different markets. These
adaptations depend on factors such as legal requirements, taxation, and
market demands.
This manual may therefore include illustrations and text that do not apply to
Order number TP 3978202
Replaces earlier publication 3978201 on Electronic Wiring Diagram (EWD) TP 3978001
With reservation for changes

TP3978202 S40 (04-)/V50 2005
Vehicles with SRS (Airbag)/SIPS bag/
IC (Inflatable Curtain)..................................................... 2
Abbreviations ................................................................. 5
How to use the wiring diagrams 1:2............................... 6
Electrical distribution 1:2................................................ 8
Relays
Ignition switch and relays............................................. 10
Distribution box in engine compartment R1-R14 ......... 11
Central Electronic Module (CEM) R15-R18................. 12
Relays - soldered......................................................... 13
Fuses
Engine compartment distribution box F1-F8................. 14
Engine compartment distribution box F9-F18............... 15
Engine compartment distribution box F20-F32............. 16
Engine compartment distribution box F33-FH1 ............ 17
Central Electronic Module (CEM) F43-F52................... 18
Central Electronic Module (CEM) F53-F66................... 19
Central Electronic Module (CEM) F68-F86................... 20
Battery, PF1-PF2.......................................................... 21
Ground connections
Overview...................................................................... 22
31/3 - 31/10 ................................................................. 23
31/11 - 31/66 ............................................................... 24
31/67 - 31/84 ............................................................... 25
31/88 - 31/114 ............................................................. 26
31/115 - Ground connections in chassis...................... 27
Control modules
Overview of locations................................................... 28
Overview of designations............................................. 29
Central Electronic Module (CEM) 1:2 .......................... 30
Data communication Low speed CAN 1:2................... 32
Data communication LIN 1:2 ....................................... 34
Data communication High speed CAN ........................ 36
Data communication MOST ....................................... 37
Start Control Module (SCU)......................................... 38
Accessory Electronic Module (AEM) ........................... 39
Group 23 Fuel system
Engine management system, 4-cyl 1.8l 1:2................. 40
Engine management system, 5-cyl 1:2........................ 42
Engine management system, 5-cyl Turbo 1:2 ............. 44
Engine management system Diesel 1:2 ...................... 46
Emission control 4-cyl 1.8l ........................................... 48
Emission control, 5-cyl................................................. 49
Emission control, 5-cyl Turbo ...................................... 50
Group 26 Cooling system
Cooling fan................................................................... 51
Cooling fan Diesel........................................................ 52
Group 27 Engine control
Cruise control................................................................ 53
Cruise control, Diesel.................................................... 54
Group 32 Alternator and voltage regulator
Power supply ............................................................... 55
Power supply, Diesel ................................................... 56
Group 33 Starting system
Starting system ............................................................ 57
Starting system, Diesel ................................................ 58
Group 35 Lighting
High and low beam ...................................................... 59
High and low beam (Bi-Xenon).................................... 60
Manual beam length adjustment.................................. 61
Automatic head light leveling (Bi-Xenon)..................... 62
Running/Parking lights, Tail lights .............................. 63
Running/Parking lights, Tail lights (Bi-Xenon) ............ 64
Fog lights ..................................................................... 65
Fog lights LHD, Japan ................................................. 66
Brake lights .................................................................. 67
Reversing lights ........................................................... 68
Follow-me-home lighting.............................................. 69
Interior lighting 1:2 ....................................................... 70
Instrument and control illumination .............................. 72
Auxiliary light................................................................ 73
Group 36 Additional electrical equipment
Rain Sensor ................................................................. 74
Direction indicators and flashing hazard lights .......... 75
Direction indicators and flashing hazard lights
(Bi-Xenon) ................................................................. 76
Windshield wiper/washer ............................................. 77
Headlight washer ......................................................... 78
Wiper/washer, rear window.......................................... 79
Horn ........................................................................ 80
Immobilizer/Control module steering column lock
(SCL) ........................................................................ 81
Keyless Vehicle 1:2 ..................................................... 82
Parking assistance, rear .............................................. 85
Parking assistance, front.............................................. 86
Accessory Electronic Module (AEM)............................ 87
Group 37 Wiring and fuses
Diagnostics system...................................................... 88
12V outlet..................................................................... 89
Tow hitch cable harness, 4-pin .................................... 90
Towbar cable harness, 7-pin........................................ 91
Towbar cable harness, 13-pin ..................................... 92
Group 38 Instruments
Seat belt reminder ....................................................... 93
Driver information module............................................ 94
Group 39 Other
Multimedia & Traffic information .................................. 95
Audio 1:2...................................................................... 96
Cellular phone 1:2........................................................ 98
Subwoofer.................................................................. 100
Handsfree .................................................................. 101
Table of Contents 1:2

TP3978202 S40 (04-)/V50 2005
Group 43 Transmission
Automatic transmission AW55-51.............................. 102
Shift interlock ............................................................. 103
Transmission M66 ..................................................... 104
Group 59 Brake system
Brake control system ................................................. 105
Brake control system & STC...................................... 106
Brake control system & DSTC ................................... 107
Group 64 Steering
Electronic power steering .......................................... 108
Group 83 Doors and openings
Central locking, front doors........................................ 109
Central locking, rear doors......................................... 110
Central locking, trunk lid/tailgate................................ 111
Child safety lock......................................................... 112
Central locking, fuel filler flap..................................... 113
Signal receiver, remote-control, central locking......... 114
Power windows, front doors....................................... 115
Power windows, rear doors ....................................... 116
Power sunroof............................................................ 117
Group 84 Exterior decorative elements, etc.
Power door mirrors .................................................... 118
Heated door mirrors................................................... 119
Heated rear window................................................... 120
Group 85 Interior equipment
Power driver’s seat with memory function, LHD ...... 121
Power driver’s seat with memory function, RHD ..... 122
Power driver’s seat .................................................... 123
Power passenger seat............................................... 124
Heated seats.............................................................. 125
Group 87 Climate controls
Climate control system 4-cyl 1.8l 1:2 ......................... 126
Climate control system 1:2......................................... 128
Climate control system Diesel 1:2.............................. 130
Climate control system PTC element ....................... 132
Parking heater, auxiliary heater ................................. 133
Relay, electric engine heater ..................................... 134
Group 88 Internal equipment
Auto-dimming rear-view mirror ................................ 135
Supplemental Restraint System (SRS) 1:2................ 136
Connectors............................................... 138
Branching points .....................................160
Cable harnesses’ routing in the vehicle
Harness engine, Gasoline 4-cyl .................................169
Harness engine, Gasoline 5-cyl..................................169
Harness engine, Gasoline 5-cyl, Turbo.......................170
Harness engine, Diesel...............................................170
Harness engine compartment, 4-cyl ...........................171
Harness engine compartment, 5-cyl & Turbo ............171
Harness engine compartment, Diesel.........................172
Harness Dashboard ....................................................172
Harness Infotainment..................................................173
Harness Floor S40 ......................................................174
Harness Floor V50 ......................................................175
Harness Ceiling S40 ...................................................176
Harness Ceiling V50 ...................................................176
Harness Tunnel ..........................................................177
Harness Driver door....................................................178
Harness Passenger door ............................................178
Harness Rear door, right.............................................179
Harness Rear door, left...............................................179
Harness Trunk, S40 ....................................................180
Harness Tailgate, V50 ................................................180
Component illustrations ..........................181
Index ......................................................... 224
List of components 1:4
Table of Contents 2:2

TP3978202 S40 (04-)/V50 2005 5
Explanations
Abbreviations
Groups
Group 23 = Fuel system
Group 26 = Cooling system
Group 27 = Engine controls
Group 32 = Alternator and voltage regulator
Group 33 = Starting system
Group 35 = Lighting
Group 36 = Additional electrical equipment
Group 37 = Wiring and fuses
Group 38 = Instruments
Group 39 = Other
Group 43 = Transmission
Group 59 = Brake system
Group 64 = Steering
Group 83 = Doors and openings
Group 84 = Exterior decorative elements, etc.
Group 85 = Interior equipment
Group 87 = Climate controls
Group 88 = Internal equipment
Ignition switch symbols
X = Accessories (audio position)
S = Powered upon insertion of key
15 = Contact remains connected during
start
15l = Contact is broken while starting
30 = Constant power from the battery
50 = Start
Countries/Markets
A = Austria
AUS = Australia
B = Belgium
CDN = Canada
CH = Switzerland
D = Germany
DK = Denmark
E = Spain
EU/OS = Markets outside USA and Canada
FIN = Finland
GB = Great Britain
ISR = Israel
Y = Japan
KOR = Korea
N = Norway
NL = Netherlands
S = Sweden
USA = United States of America
WEU = Western Europe
Other
AUTO = Automatic transmission
AWD = Four-wheel drive
CAN = CAN communication
DIESEL = Diesel
DPY = Display
ECC = Electronic climate control system
ETA = Engine throttle body
EXT. X = Extended X-feed
GDL = Gas discharge lamp
HISPEED = High speed data bus
IR = IR sensor
LIN = LIN communication
LHD = Left-hand drive
LOSPEED = Low speed data bus
MAN = Manual transmission
MEMORY = Memory driver seat
MMS = Mass Movement Sensor
GASOLINE = Gasoline
RHD = Right-hand drive
SCR = Screen
SRS = Airbag
T = Turbocharged engine
W/O = Without
2WD = Two-wheel drive
4CYL = 4-cylinder engine
5CYL = 5-cylinder engine
Colors
BK, SB = Black
BN = Brown
BU, BL = Blue
GN = Green
GY, GR = Gray
LGN = Light Green
OG, OR = Orange
PK, P = Pink
RD, R = Red
VT, VO = Violet
WH, W = White
YE, Y = Yellow

TP3978202 S40 (04-)/V50 2005 6
The descriptions below apply in general
to all wiring diagram manuals, although
not all sections are necessarily con-
tained in this manual.
How to use the wiring diagrams 1:2
A. Component designation
Every component has a component designation that
consists of two parts.
The first part is a type number that describes the
type of component in question, for example 3/xx.
The second part of the designation is a serial num-
ber, for example. x/2.
Together, this constitutes a component designation,
for example 3/2.
At the end of the manual is a list of components,
where, with the help of the component designation,
you can read off the name of the component, for
example, 3/2 = light switch.
List of type numbers
The list shows which type of component that respec-
tive type numbers refer to, for example, 3/x = switch,
6/x = electric motor, etc.
1 Battery
2 Relay
3 Switch
4 Control module
5 Driver information module
6 Electric motor
7 Sensor
8 Actuator
9 Heating element
10 Lamp
11 Fuse
15 Electrical distribution rail/box
16 Audio
17 Service/diagnostics
18 Contact reel
19 Meter
20 Ignition component/shunt
27 Optics
31 Ground connection
63 Branching point
64 Connector
B. Branching points
The wiring diagrams contain numbered branching
points, for example 63/352.
This manual contains a section with a list of branch-
ing points. This list shows all the components that
are connected to each branching point.
The location of the branching points is shown in the
"Cable harness routing in vehicle" section.
C. Connectors
Connectors provide a bridge between two cable har-
nesses and are described in the "Connectors" sec-
tion.
D: Electrical distribution
Operation of the fuses and relays is shown in the
"Electrical distribution" section.
E. Data communication
Today’s cars contain CAN and MOST networks that
transfer information. Connections to these networks
are not shown in their entirety in the respective wir-
ing diagram. Complete information on CAN and
MOST communication is found in the section "Con-
trol modules".
F. Abbreviations
A number of different abbreviations are used in the
manual. These are explained in the section "Abbre-
viations".
G. Component location
There is a section at the end of the manual in which
the appearance and location of components is
described in numerical order.

TP3978202 S40 (04-)/V50 2005 7
How to use the wiring diagrams 2:2
List of symbols
= System voltage
= Ground connection
via wiring
= Ground connection on
component/chassis
= Screened wire
= Branching point
= Twisted cable
= Electrical connection
= Variant
= CAN communication
= CAN high data signal
(CAN H)
= CAN low data signal
(CAN L)
= MOST communication
= LIN communication
= DIN cable, coaxial cable,
etc.
= Data communication
= CAN communication
= Connection with distribution
box
= Further connection to...
= Connector between
cable harnesses
= Connector connected
to component
CAN
1
1
G
A E C F B D
10/17-18
BK
GN-BK
CAN
CAN
63/211
31/11 31/12
F:14
F:16
D:14
D:15
A:6
A:8
TCM
4/28 30+
F18
2
11
2
F4
MAN
63/53
MAN
GN-YE
GN-YE
64/90
10
31/52
E:14
4/56
CEM
3/10 1
2
GN-BK
GN-BK
BK
V50
10/55
10/48
BK
V50
BK
F79
2
1
LIN
15/31
C:45
E:21
E:22
GN-BK
S40 S40
BK
BK
2/80
R2
TAIL
FOG
BACK
10/18
10/18
A:4
C:4
C:2
A:2
TAIL
FOG BACK
GND GND2
TURN
STOP
10/55
10/17
A:2
A:4
TAIL
FOG
BACK
GND
GND2
TURN
STOP
10/48
TURN
STOP
A:2A:3 C:3 C:1
A:4
TAIL
FOG
BACK
10/17
C:2
C:4
TURN
STOP
A:2 A:3C:1C:3
A:4
C:4 C:2
A:1 C:1C:3C:4
C:2C:1
A:3
C:3
V50
V50
S40S40
LIN
3/156
64/90
A:7 WH-RD RD
33
64/111
2A:2
LIN
3/155
GSM
WH-RD
AUTO
RD-YE
RD-BU
GN-BK
UP
UP
UP UP

TP3978202 S40 (04-)/V50 2005 8
Electrical distribution 1:2
Overview
F
E
C
31/114
63/120
BK
BK
63/121
BK
RD
1
F36
F34
F35
F32
3
2
5
5
3
1 2
1 2
3
5
35
1 2
F10
F17
F14
GY
BK-WH
GN-BU
2/32
R14
R5
2/142
R13
2/35
R10
2/82
F12
F13
F24
F9
RD-OG
RD-OG
RD-BK
RD-GN
RD-OG
RD-OG
A
15/31
6/25
50
31
M
ACM
30
A:3
B:1
6/26
B+
31
L
G
B:1
A:1
RD
RD
12V
BK
31/3
1/1
BK
31/4
PF2 PF1
RD
RD-OG
40
14
39
64/90=15/31A
64/90=15/31A
11
6
4
BK-RD
GY
GN-RD
64/90=15/31A
41
12
21
BK-BU
GN-BU
GN-BU
GN-YE
GN-BU
GN-YE
B
DIESEL
GN-BU
PETROL
2
11
2
35
GN-YE
GN-YE
63/13
GN-YE
5 CYL T
W/O T
D
35
1 2
64/90
31
GY-OG
64/113
6
GN-BU
GY-BK
2/165
ONLY I4 & DV6 ENGINES
GN-YE

TP3978202 S40 (04-)/V50 2005 9
Electrical distribution 2:2
Overview
RD-WH
RD-BK
RD-GN
RD-OG
RD-BU
RD-OG
RD-BU
2
1
3
5
3
1
5
2
3
1
5
2
2
5
3
1
CAN
CEM
4/56
LIN
BK-YE
G:11
C
G:18
E:9
E:30
3/1
30
15X
5
50 S
B:7
A:42 A:15 A:30 A:17
B:5 B:2
B:1
B:3
GY-BK RD-GN YE GN-WH
64/111
5
G:9
E:22
E:23
E:20
E:21
RD-YE
RD-BU
RD-WH
RD-OG
RD
RD
BK-BU
2/182
R9
2/34
R4
2/22
R11
R2
2/17
F20
F26
F3
F30
F31
F2
F16
F6
F23
F4
F18
F27
F29
F11
F8
F7
F1
F5
F21
A
RD-OG
GY
E
BK-WH
F
GN-BU
15/31
BK-RD
13
64/90=15/31A
RD
23
64/90=15/31A
RD
RD-WH
17
64/90=15/31A
BK-YE
18
GN-YE
PETROL
GN-BU
DIESEL
B
64/861
1
RD
D
GN-YE
E:1
63/231

TP3978202 S40 (04-)/V50 2005 10
Relays
Ignition switch and relays
B
A
Position
KeyOut
0
II
I
III
X
Terminal
30 S X 15
X
X X
X
X X
X X
X
X X
X
50
X
4
8
1
3
Relays, general
The diagram indicates two or three different designations for the relay’s position. This
is described below.
A = Corresponds to the position on the back
of the relay box (wiring side)
B = Corresponds to the position on the relay.
C = An old designation that may be found on
the relay.
A B C
4
2(85)
3
5(87)
2
1(86)
4(87a)
5
3(30)
1