S6 Quattro Sedan V10-5.2L (BXA) (2007)
If the specified value was not 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 Motronic Engine Control Module (ECM) J623 or the Engine Control Module (ECM) 2 J624.
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Using a Multimeter, check the Motronic Engine Control Module (ECM) Power Supply Relay J271 socket 2/87 to the Motronic Engine Control
Module (ECM) J623 electrical harness connector T94 terminals or the Engine Control Module (ECM) 2 J624 electrical harness connector T94a
terminals for resistance.
Motronic Engine Control Module (ECM)
Motronic Engine Control Module (ECM)
Power Supply Relay J271 socket terminal J623 electrical harness connector T94a terminals /
Engine Control Module (ECM) 2 J624 electrical harness connector T94b terminals or test box
sockets
2/87
3
5
6
Specified value: 2.0 ohms
If the specification was not obtained:
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Check the wiring for a short circuit to each other, Battery (-), Ground (GND), or an open circuit.
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Check the electrical harness connector for damage, corrosion, lose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring and the voltage supply OK:
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Replace the Motronic Engine Control Module (ECM) J623 or the Engine Control Module (ECM) 2 J624.
Final procedures
Assembly is performed in the reverse order of removal.
After repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory.
2. If necessary, erase the DTC memory.
3. If the DTC memory was erased, generate readiness code.
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End of diagnosis.