Volkswagen Jetta 2000 User manual

Instrument panel, On Board Diagnostic (OBD) (through MY 1999)
Clock, correcting
Code Control Module
Consumption indicator, matching
Display group overview
Distance impulse number (K number), reading
Distance travelled (odometer) display, adapting
Fuel gauge (adaptation), checking
Language alternatives for drivers instructions, adapting
Locations of instrument panel senders and sensors
On Board Diagnostic, initiating
Output Diagnostic Test Mode
Read Measuring Value Block
Service interval display, resetting
Service interval, adapting data when changing the instrument panel
Instrument panel On Board Diagnostic (OBD) (from MY 2000)
Code Control Module
Consumption indicator, matching
Display group overview
Distance impulse number (K number), reading
Distance travelled (odometer) display, adapting
Fuel gauge (adaptation), checking
Instrument panel senders and sensors, locations
Language alternatives, adapting for drivers instructions
On Board Diagnostic, initiating
Output Diagnostic Test Mode
Read Measuring Value Block
Service interval data, adapting when changing the instrument panel
Service interval display, resetting
Diagnostic interface for databus
Code Control Module
Display group overview
Read Measuring Value Block
Anti-theft immobilizer On Board Diagnostic (OBD)
Diagnostic Trouble Code (DTC) table
Emergency start function, activating without VAG 1551
Ignition keys, matching
Immobilizer On Board Diagnostic (OBD), initiating
Immobilizer, troubleshooting
Lost key procedure
Procedure after changing engine control module (Matching)
Procedure after changing instrument cluster (Matching)
Read Measuring Value Block
Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
01 On Board Diagnostic (OBD) (Page GR-01)
Volkswagen Technical Site - http://volkswagen.msk.ru

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-1)
Notes:
The instrument panel is installed in conjunction with vehicle equipment level, there are different
versions:
Lowline version with rev counter and digital clock or
Midline version with rev counter and multi-function indicator or
Highline version with rev counter, multi-function indicator and navigation display unit.
Notes when exchanging instrument panels
Instrument panels which do not have the function "Convenience anti-theft system" have a control
unit part number where the last number is a 0 (production to approx. 07.98).
Instrument panels which do have the function "Convenience anti-theft system" have a control unit
part number where the last number is a 1 (production from approx. 08.98).
If a instrument panel with the function "Convenience anti-theft system" is replaced, then for
vehicles with
Radio system Premium IV 05.98
the radio electronic anti-theft system must be reactivated.
Repair Manual, Radio, Telephone, Navigation , Repair Group 91

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-2)
The convenience anti-theft system is operative after first activation of electronic anti-theft system.
Notes on function of of convenience anti-theft system
Repair Manual, Radio, Telephone, Navigation , Repair Group 91
The instrument panel must not be dismantled.
If required the instrument panel is to be exchanged using normal exchange part
procedures.
Complete damage report form and return together with instrument panel.
Use original packaging only when returning items.
The odometer reading and the service interval display can be matched to the
exchange instrument panel using scan tool VAG 1551 Page 01-48.
The instrument panel is controlled via a microprocessor which is equipped with an extensive self-
diagnosis.
If faults occur in the sensors and components being monitored, they will be stored in the fault
memory together with an indication of the type of fault.

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-3)
A maximum of 4 faults can be stored simultaneously.
Sporadic faults are automatically cancelled if they are not repeated in next 50 engine starts.
The On Board Diagnostic must be initiated at the commencement of fault finding and the stored
information interrogated with the
Vehicle Diagnosis, Testing and Information system VAS 5051 or
Scan tool VAG 1551 or
Vehicle system tester VAG 1552.
Notes:
The following description deals only with the scan tool VAG 1551.
Measures for repairing commonly occurring faults on particular models
Technical Service Handbook

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-4)
Locations of instrument panel senders and sensors
WARNING!
Disconnect battery earth strap before working on electrical system.
1 - Fuel gauge sender -G
Location Fig. 1
Monitored via self-diagnosis
An additional fuel gauge sender -G169- is installed in four-wheel drive vehicles
Location of -G169- Fig. 2
2 - Ambient temperature sender -G17
Location Fig. 3
Monitored via self-diagnosis

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-5)
3 - Speedometer sender -G22
Location Fig. 4
Monitored via self-diagnosis
4 - Coolant temperature sender -G2
Location depends on type of engine
Repair Manual, Fuel Injection & Ignition, Repair Group 24
Monitored via self-diagnosis
5 - Instrument panel -K
Monitored via self-diagnosis

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-6)
Fig. 1 Fuel gauge sender -G
The fuel gauge sender -G- is located in the fuel tank on the fuel delivery unit -arrow-.
Removing and installing fuel delivery unit
Repair Manual, Engine Mechanical, Repair Group 20
Fig. 2 Additional fuel gauge sender -G169- in four-wheel drive vehicles
In addition to the above mentioned sender -G- there is another sender -G169- in the vehicle
which is located on the left-hand side under the rear seat.

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-7)
Fig. 3 Ambient temperature sender -G17
The ambient temperature sender -G17- is located on left of front bumper behind the outer air
grille.
Unclip air grille to remove sender.
Repair Manual, Body-Exterior, Repair Group 63
Fig. 4 Speedometer sender -G22
The speedometer sender -arrow- is located in the area of the left-hand drive shaft flange on
manual and automatic gearbox vehicles.

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-8)
On Board Diagnostic, initiating
Special tools, testers, measuring units and auxiliary items required
Scan tool VAG 1551 or vehicle system tester VAG 1552.
VAG 1551/3 or 1551/3A adapter cable

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-9)
Connecting scan tool VAG 1551 and selecting functions (Interrogating unit version)
Check prerequisites:
All fuses according to current flow diagram OK.
Supply voltage OK. (at least 9.0 V).
Connect scan tool using cable VAG 1551/3 as follows:
- Connect cable VAG 1551/3 to diagnosis connector located below dash to left of
steering column
Indicated on display:
* Appears alternately

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-10)
Notes:
If the display remains blank, check VAG 1551 voltage supply according to current
flow diagram.
Electrical Wiring Diagrams Troubleshooting & Component Locations binder
Additional operating instructions can be called up with the scan tool HELP key.
The key serves to advance the programme sequence.
In the operating mode 1 "Rapid data transfer" the function 00 "Automatic test
sequence" can be carried out. Then all vehicle control units will be interrogated
automatically.
- Switch on ignition.
- Switch on printer with the Print key (indicator lamp in key lights up).
- Press key 1 for "Rapid data transfer" mode.
Indicated on display:
- Press keys 1 and 7. "17" enters the address word "Instrument panel".
Indicated on display:
- Confirm entry with Q key.

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-11)
Indicated on display:
Interrogate control unit version
Indicated on display for instrument panel with manufacturer's code VDO:
Indicated on display for instrument panel with manufacturer's code MMO:
1- Dependent on engine, gearbox and additional equipment
2- Will be automatically stored in the control unit when entering the system, but not
when Code Control Modules which have been used.
3- Instrument panels which do not have the function "Convenience anti-theft system"
have a control unit part number where the last number is a 0 (production to approx.
07.98).

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-12)
Instrument panels which do have the function "Convenience anti-theft system" have a control unit
part number where the last number is a 1 (production from approx. 08.98).
If a instrument panel with the function "Convenience anti-theft system" is replaced, then for
vehicles with
Radio system Premium IV 05.98
the radio electronic anti-theft system must be reactivated.
Repair Manual, Radio, Telephone, Navigation Repair Group 91
The convenience anti-theft system is operative after first activation of electronic anti-theft system.
Notes on function of of convenience anti-theft system
Repair Manual, Radio, Telephone, Navigation Repair Group 91

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-13)
Indicated on display:
Motometer instrument panels are identified by IMMO-IDENTNO: VWZ6 . . ..
VDO instrument panels are identified by IMMO-IDENTNO: VWZ7 . . ..
Will be indicated on display:
- By pressing the "HELP" key a list of possible fault causes is printed out.
- After repairing faults again enter address word 17 for instrument panel and confirm
with Q.
Indicated on display:
- Press key.
Indicated on display:
- Press key.
Indicated on display:
- After the HELP key is pressed, a list of the possible functions is printed out.

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-14)
List of selectable functions
Notes:
Do not select further functions, which can be printed out after pressing the HELP
key.
After the function is completed the VAG 1551 returns to the following start position:
Indicated on display:

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-15)
Interrogating fault memory
Notes:
The displayed fault information is not constantly up-dated, but only when initiating the self-
diagnosis or with the function 05 "Erase fault memory".
- Switch on printer with the Print key (indicator lamp in key lights up).
Indicated on display:
- Press keys 0 and 2. (The function "Interrogate fault memory" is selected with 02.)
Indicated on display:
- Confirm entry with key Q.
The number of stored faults appears in the display.
The stored faults are displayed and printed out one after another.
- Enter fault table at fault printed out and repair fault Page 01-178.
If "No fault recognized" is displayed the programme will return to the start point after pressing
key.

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-16)
Indicated on display:
If something else is displayed:
Scan tool operating instructions
- End output (function 06) Page 01-18.
- Switch off ignition and separate diagnostic connections.
Erasing fault memory
Notes:
After erasing the fault memory its contents will automatically be indicated. If the fault memory
cannot be erased, again interrogate fault memory and repair faults.
Prerequisites
Fault memory interrogated Page 01-15.
All faults repaired.
After fault memory has been successfully interrogated:
Indicated on display:
- Press keys 0 and 5. (05 selects the "Erase fault memory" function.)

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-17)
Indicated on display:
- Confirm entry with key Q.
Indicated on display:
The fault memory is now erased.
- Press key.
Indicated on display:
Notes:
If this appears in the display, the test sequence is faulty.
If this appears in the display, the test sequence is faulty.
Adhere exactly to test sequence: First interrogate fault memory, if necessary repair faults, then
erase.

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-18)
Ending output
- Press keys 0 and 6. (The function "End output" is selected with 06.)
Indicated on display:
- Confirm entry with key Q.
Indicated on display:
- Switch off ignition.
- Disconnect scan tool VAG 1551.

Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Instrument panel, On Board Diagnostic (OBD) (through MY 1999) (Page 01-19)
Fault table
Notes:
The following table lists all the faults, with the corresponding 5 digit code numbers,
that can be recognized by the instrument panel control unit -J285- and printed out by
the VAG 1551.
Fault codes appear only on print-out.
Before replacing components, check the wiring and connections to these
components as well as the earth connections, according to current flow diagram.
When repair has been carried out, the fault memory must always be interrogated
again with the scan tool VAG 1551 and erased.
*Not for vehicles with Climatronic: A fault entry is made when the fault has been registered
continuously for at least 60 seconds.