Passat Sedan V6-3.6L (BLV) (2008)
If the manufacturers test box is not being used. Perform the following step.
Remove the Motronic Engine Control Module (ECM) J623.
Using a Multimeter, check the Engine Coolant Temperature (ECT) Sensor G62 electrical harness connector terminals to the Motronic Engine
Control Module (ECM) J623 electrical harness connector T60 terminals for an open circuit according to the wiring diagram.
Engine Coolant Temperature
Motronic Engine Control Module
(ECT) Sensor G62 electrical
(ECM) J623 electrical connector
harness connector terminals
T60 terminals or test box socket
Specified value: 1.5 Ohms Max.
If the specification was not obtained:
Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
If necessary, repair the faulty wiring connection.
Erase the DTC memory.
Perform a road test to verify repair.
If the DTC does not return:
Repair complete, Generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness
If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK:
Replace the Motronic Engine Control Module (ECM) J623.
Assembly is performed in the reverse of the removal.
After repair work, the following work steps must be performed in the mentioned sequence:
1. Check the DTC memory.
2. If necessary, erase the 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