R32 4Motion V6-3.2L (CBRA) (2008)
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Using a Multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130 electrical harness connector terminals
to the Engine Control Module (ECM) J623 electrical harness connector T121 terminals for resistance.
Oxygen Sensor (O2S)
Engine Control Module (ECM) J623
Behind Three Way Catalytic
electrical connector T121
Converter (TWC) G130 electrical terminals or test box sockets
harness connector terminals
3
68
4
69
Specified value: 1.5 ohms Max.
If the specification was not obtained:
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Check the wiring for an open circuit, a short circuit to each other, Battery (+), or Ground (GND).
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Check the electrical harness connector 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. 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
Oxygen Sensor Heater Z19, Checking
Oxygen Sensor Heater Z19, Checking
NOTE:
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Oxygen Sensor (O2S) Heater Z19 is part of Heated Oxygen Sensor (H02S) G39 and cannot be serviced separately.
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When servicing terminals in the electrical harness connector of Heated Oxygen Sensor (H02S) G39, use only gold-plated terminals.
Special tools, testers and auxiliary items required
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Multimeter.
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Wiring diagram.