Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED Has FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record FREEZE FRAME DATA on the repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Verify related Service Bulletins and/or on-line repair information availability. Is any related Service Bulletins available?	Yes	Perform repair or diagnosis according to the available Service Bulletins. If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	INSPECT A/F SENSOR/HO2S WIRING HARNESS CONNECTORS For P0040:00, visually inspect the vehicle A/F sensor wiring harness connector (s) for any indication of crossed wires (Also, stretched or incorrectly mounted wiring harnesses). For P0041:00, visually inspect the vehicle HO2S wiring harness connector (s) for any indication of crossed wires (Also, stretched or incorrectly mounted wiring harnesses). For P0040:00, P0041:00, visually inspect the vehicle PCM of A/F sensor/HO2S signals wiring harness connector (s) for any indication of crossed wires (Also, stretched or incorrectly mounted wiring harnesses). Are there crossed connections or wires?	Yes	Repair if necessary.
3		No	Unable to duplicate or identify the cause of concern at this time. Perform the "INTERMITTENT CONCERN TROUBLESHOOTING" procedure.
4	VERIFY TROUBLESHOOTING OF DTC P0040:00, P0041:00 HAVE BEEN COMPLETED Verify that all disconnected connectors reconnected. Switch the ignition to ON (Engine off). Clear the DTC from the PCM memory using the M-MDS. Start the engine and run it at idle. Perform the KOER self-test. (See KOEO/KOER SELF TEST .) Is the PENDING CODE for this DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION .) Go to the next step.
4		No	Go to the next step.
5	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE .)
5		No	Troubleshooting completed.