On Board Diagnostic (OBD), Initiating

1998 Audi A8 Sedan (4D2) V8-3.7L (AEW)SECTION On Board Diagnostic (OBD), Initiating



Central Locking System On Board Diagnostic (OBD), initiating

Conditions:
- Voltage supply as well as fuses for the respective system are OK
- V.A.G 1551 Scan Tool connected. Refer to "Scan Tool Connecting And Initial Checks/Scan Tool Testing", Connecting" under "Restraint Systems", Testing and Inspection

Indicated on display:


Rapid data transfer HELP
Select function XX



- Enter "35" for address word "Central locking" and confirm entry with Q key.

Indicated on display:


Rapid data transfer
Tester transmits address word 35



- Wait until the next display appears.

The display on the scan tool V.A.G 1551 will show the control module identification code (example).

8L0862257B CL-Pump, DTW, Radio D04 ->
Coding 16140 WSC 12345



NOTE: You may print out the control module identification by pressing the PRINT key on the scan tool V.A.G 1551.


Control module identification (example)

- 8L0862257B Part-No.: assignment
- CL Pump, DTW, Radio Component designation
- D04 Data status (software status) of control module
- Code 16140 Control module code
- WSC 12345 Workshop Code of V.A.G 1551 which was used to perform the last coding

- Press -> key.

Indicated on display (function selection):


Rapid data transfer HELP
Select function XX



NOTE: The control module identification can be displayed again by entering function "01" for "Check Control Module Version" and confirming with the Q key.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.