Diagnostic Procedure

STEP	INSPECTION		ACTION
1	PERFORM PCM DTC INSPECTION Perform the PCM DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZR 2.5] .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR 2.5] .)
1		No	Go to the next step.
2	PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS PCM Clear the DTC using the M-MDS. (See CLEARING DTC [INSTRUMENT CLUSTER] .) Switch the ignition to ON and wait for 20 s or more . Perform the instrument cluster DTC inspection using the M-MDS. (See DTC INSPECTION [INSTRUMENT CLUSTER] .) Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR 2.5] .)
2		No	Go to Step 4.
3	VERIFY TROUBLESHOOTING COMPLETED Clear the DTC using the M-MDS. (See CLEARING DTC [INSTRUMENT CLUSTER] .) Switch the ignition to ON and wait for 20 s or more . Perform the instrument cluster DTC inspection using the M-MDS. (See DTC INSPECTION [INSTRUMENT CLUSTER] .) Is the same DTC present?	Yes	Replace the instrument cluster, then go to the next step. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
3		No	Go to the next step.
4	VERIFY THAT NO OTHER DTCs ARE PRESENT Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [INSTRUMENT CLUSTER] .)
4		No	DTC troubleshooting completed.