R32 4Motion V6-3.2L (CBRA) (2008)
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Switch the ignition off.
If the specified value was not obtained:
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Replace Heated Oxygen Sensor (HO2S) G39.
If the specified value was 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 Engine Control Module (ECM) J623.
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Using a Multimeter, check the Heated Oxygen Sensor (HO2S) G39 electrical harness connector terminals to the Engine Control Module (ECM)
J623 electrical harness connector T121 terminals for resistance.
Heated Oxygen Sensor
Engine Control Module (ECM) J623
(HO2S) G39 electrical harness
electrical connector T121
connector terminals
terminals or test box sockets
1
52
2
51
5
71
6
70
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: