Initial Inspection and Diagnostic Overview
Test requirements- Fuses OK (check using appropriate wiring diagram)
- VAG1551 Scan Tool (ST) connected.
NOTES:
- If the display is blank, check voltage supply to VAG1551 scan tool using the wiring diagram.
- Additional operating instructions can be printed out by pressing the HELP button on the scan tool.
- Press the -> button to advance through the OBD program sequence.
- Incorrect input can be cancelled using the -C- button.
- "Automatic Test Sequence" address word 00 can be carried out in "Rapid data transfer" operating mode 1. In this program DTC memory for all of the vehicle's control modules are automatically checked.
- Switch printer on by pressing PRINT button (indicator light in button comes on).
- Press button -1- to select "Rapid data transfer" operating mode 1.
Indicated on display
Rapid data transfer HELP
Insert address word XX
Address word 35: Central Locking
- Press buttons -3- and -5-to insert "Central Locking" address word 35.
Indicated on display
Rapid data transfer Q
- Press -Q- button to confirm input.
Indicated on display (after approx. 5 sec.)
8L0862257B CV-Pump, Alarm, RC D04 ->
Coding 11932 WSC 06812
Example:
- 8L0862257B: Control module identification
- CV-Pump, Alarm, RC: Component identification
- D04: Software version
- Coding 11932: Control module coding
- WSC 06812: Dealership code
- Press -> button.
If one of these messages is indicated on the display:
Indicated on display
Rapid data transfer HELP
Control module does not answer
or
Indicated on display
Rapid data transfer HELP
Error in communication link
or
Indicated on display
Rapid data transfer HELP
K wire not switching to Ground
or
Indicated on display
Rapid data transfer HELP
K wire not switching to B+
- Troubleshoot wiring connections for Data Link Connector (DLC) See appropriate wiring diagram.
Indicated on display
Rapid data transfer HELP
Select function XX
NOTES:
- A list of the possible functions is printed out by pressing the HELP button.
- After a program function has been completed, the VAG1551 scan tool will again display "Select function XX."
- Press -> button to advance program sequence.
On Board Diagnostic functions
02 - Check DTC Memory Check DTC Memory (Function 02)
03 - Output Diagnostic Test Mode (DTM) Output Diagnostic Test Mode (Function 03)
05 - Erase DTC Memory Erase DTC Memory (Function 05)
06 - End Output End Output (Function 06)
07 - Code Control Module Code Control Module (Function 07)
08 - Read Measuring Value Block Read Measuring Value Block (Function 08)