Passat Wagon L4-2.0L Turbo (BPY) (2008)
If the manufacturers test box is not being used. Perform the following step.
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Remove the Motronic Engine Control Module (ECM) J623.
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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.
Engine Coolant Temperature
Motronic Engine Control
(ECT) Sensor G62 electrical
Module (ECM) J623 electrical
harness connector terminals
T60connector terminals or test box socket
1
10
2
14
Specified value: 1.5 Ohms Max.
If the specification was not obtained:
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Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring:
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Erase the DTC memory.
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Perform a road test to verify repair.
If the DTC does not return:
Repair complete, Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes
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End diagnosis.
If the DTC does return and no malfunction is detected in the wiring and the voltage supply was not OK:
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Replace the Motronic Engine Control Module (ECM) J623.
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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:
1. Check the DTC memory.
2. If necessary, erase the DTC memory.
3. If the DTC memory was erased, generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
End of Diagnosis