A6 Quattro Wagon V6-3.2L (BKH) (2006)
If the specified value was obtained:
Checking wiring
If the manufacturers test box is being used, perform the following step.
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Connect the Test Box 105 Pin (VAG1598/42) with Adapter Cable (1598/39-1) to the Engine Control Module (ECM) (J623) wiring harness
connector => Fuel Injection and Ignition 24 Diagnosis and Testing.
‹› The Engine Control Module (ECM) (J623) must remain disconnected for the following step.
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Using a Multimeter, check the central termination resistor by checking for resistance between terminals 58 and 60 of the Engine Control Module
(ECM) (J623) electrical harness connector "A" (T81).
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.
If no malfunction is found in the wiring:
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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 Modes 01 - 09/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/Readiness Code.
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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 Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module, Replacing ] See: Engine Control Module/Service and
Repair/Engine Control Module, Replacing.
After repair work, the following work steps must be performed in the mentioned sequence:
1. Check the DTC memory. => [ Diagnostic Mode 03 - Read DTC Memory ] See: Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Modes 01 - 09/Diagnostic Mode 03 - Read DTC Memory.
2. If necessary, erase the DTC memory. => [ Diagnostic Mode 04 - Erase DTC Memory ] See: Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Modes 01 - 09/Diagnostic Mode 04 - Erase DTC Memory.
3. If the DTC memory was erased, generate readiness code. => [ Readiness Code ] See: Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes/Readiness Code.