S6 Quattro Sedan V10-5.2L (BXA) (2007)
Specified value: 1.5 ohms Max.
If the specified value was not obtained:
-
Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).
-
Check the wiring connection for damage, corrosion, lose or broken terminals.
-
If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring and the resistance was not OK:
-
Replace Knock Sensor (KS) 2 (G66).
If no malfunction is found in the wiring and the resistance was OK:
-
Replace the Motronic Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module, Removing and Installing ] See: Engine
Control Module/Service and Repair/Engine Control Module, Removing and Installing.
Assembly is performed in the reverse order of removal.
Final procedures
After repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. Refer to => [ 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. 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.
3. If the DTC memory was erased, generate readiness code. Refer to => [ Readiness Code ] See: Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes.
-
End of diagnosis.
Knock Sensor 3
The following procedure is used to diagnose Knock Sensor 3 (G198) which is controlled by Engine Control Module (ECM) 2 (J624).
Special tools, testers and auxiliary items required