R32 4Motion V6-3.2L (CBRA) (2008)
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Using a Multimeter, Check the Knock Sensor (KS) 1 G61 electrical harness connector to the Engine Control Module (ECM) J623 electrical
harness connector T121 for resistance.
Knock Sensor (KS)
Engine Control Module (ECM)
1 G61 electrical harness
electrical harness connector
connector terminals
T121 terminals or test box sockets
1
106
2
99
3
108
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. See: Testing and Inspection/Scan Tool Testing and Procedures/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. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
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End diagnosis.
If the DTC returns and no malfunction is found in the wiring and the voltage supply was OK:
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Replace the Engine Control Module (ECM) J623.
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Assembly is performed in the reverse of the removal.
Final procedures
After repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Mode 03 - Read DTC Memory
2. If necessary, erase the DTC memory. See: Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Mode 04 - Erase DTC Memory
3. If the DTC memory was erased, generate readiness code See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
End of diagnosis