Touareg V8-4.2L (BAR) (2007)
Specified value: 1.5 ohms Max.
If the specification was not obtained:
-
Check the wiring for an open circuit, 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.
If no malfunction is detected in the wiring:
-
Remove the Engine Speed (RPM) Sensor (G28) and check the sensor wheel for proper seating, damage and run-out. Refer to Engine Mechanical,
Fuel Injection & Ignition, Fuel Injection & Ignition, Repair Group 13.
If the sensor wheel is OK:
-
Erase the DTC memory. Refer to --> [ Diagnostic Mode 04 - Erase DTC Memory ] See: Testing and Inspection/Reading and Clearing Diagnostic
Trouble Codes/Clearing Diagnostic Trouble Codes.
-
Perform a road test to verify repair.
If the DTC does not return:
Repair complete, Generate readiness code. Refer to --> [ Readiness Code ] See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness
Codes.
-
End diagnosis.
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). Refer to --> [ Engine Control Module, Replacing ] See: Engine Control
Module/Service and Repair/Engine Control Module, Replacing.
-
Assembly is performed in the reverse of the removal.
Final procedures
After repair work, the following work steps must be performed in the mentioned sequence: