Jetta L5-2.5L (BGP) (2006)
Checking Ground (GND)
If the manufacturers test box is being used. Perform the following step.
-
Install the Adapter Cable (121 -pin) VAG1598/31.
If the manufacturers test box is not being used. Perform the following step.
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Remove the Motronic Engine Control Module (ECM) J220.
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Using a Multimeter, check the following wiring connection for resistance.
Power Supply Relay
Measure to
(terminal 15) J329
socket
4/85
Ground (GND) connection on left
headlamp
Specified value: 1.5 Ohms.
If the specified value was not obtained:
-
Check the Power Supply Relay (terminal 15) J329 socket 4/85 to the Ground (GND) connection on left headlamp for an open circuit or a short to
Battery (+).
-
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
-
If necessary, repair the wiring connection.
If no malfunctions are found in the wiring and the voltage supply was OK:
-
Replace the Power Supply Relay (terminal 15) J329.
-
Assembly is performed in the reverse of the removal.
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Mode 03 -
Read DTC Memory
2. If necessary, erase the DTC memory. See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic
Mode 04 - Erase DTC Memory
3. If the DTC memory was erased, generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes
End of diagnosis.
