RS 4 Quattro Sedan V8-4.2L (BNS) (2007)
Engine Coolant Temperature
Motronic Engine Control Module
(ECT) Sensor G62 electrical
(ECM) J623 electrical connector
harness connector terminals
T60 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 (+), Ground (GND), or an open circuit.
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If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring:
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Replace the Motronic Engine Control Module (ECM) J623.
Final procedures
After repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 03 - Read DTC Memory
2. If necessary, erase the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing
and Procedures/Diagnostic Mode 04 - Erase DTC Memory
3. If the DTC memory was erased, generate readiness code.
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End of diagnosis.