Touareg 2 V6-3.6L (BHK) (2008)
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Using a Multimeter, check the Engine Coolant Temperature (ECT) Sensor (on radiator) (G83) electrical harness connector terminals to the
Motronic Engine Control Module (ECM) (J623) electrical harness connector T94 terminals for an open circuit according to the wiring diagram.
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.
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Erase the DTC memory. Refer to --> [ Diagnostic Mode 04 - Erase DTC Memory ] See: Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 04 - Erase DTC Memory
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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.
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End diagnosis.
If the DTC does return and no malfunction is detected in the wiring and the voltage supply was 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.
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If ECT Sensor G62,Engine Coolant Temperature (ECT) Sensor (on radiator) (G83)and Motronic Engine Control Module (ECM) (J623)have no
malfunctions, inspect Coolant Fans V7 & V177; Coolant Fan Control Modules J293 & J671. If resistance and voltage checks are not acceptable,
repair as required
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If resistance and voltage checks are satisfactory, replace affected Coolant Fan & Control Module (serviced as an assembly).
Final procedures
After repair work, the following work steps must be performed in the following sequence: