Touareg 2 V6-3.6L (BHK) (2008)
Procedure
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Disconnect the Data Bus On Board Diagnostic Interface (T32b) electrical harness connector.
‹› The Motronic Engine Control Module (ECM) (J623) must remain connected for the following step.
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Using a Multimeter, check the Data Bus On Board Diagnostic Interface (J533) electrical harness connector terminals 19 to 20 for resistance.
Specified value: 60 to 72 ohms (at approx. 20° C)
If the specified value was not obtained:
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Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).
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Check the wiring connection for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If the specified value was obtained:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the test box.
If the manufacturers test box is not being used. Perform the following step.
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Remove the Engine Control Module (ECM) (J623). Refer to --> [ Motronic Engine Control Module, Replacing ] See: Engine Control
Module/Service and Repair/Motronic Engine Control Module, Replacing.
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Using a Multimeter, check the Data Bus On Board Diagnostic Interface (J533) electrical harness connector to the Motronic Engine Control
Module (ECM) (J623) electrical harness connector T94 for resistance.
Specified value: 1.5 ohms Max.
If the specified value was not obtained:
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Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).
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Check the wiring connection 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/Reading and Clearing Diagnostic
Trouble Codes/Clearing Diagnostic Trouble Codes
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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). Refer to --> [ Motronic Engine Control Module, Replacing ] See: Engine Control