Diagnostic procedure

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

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 Service Bulletins available?	Yes	Perform repair or diagnosis according to available Service Bulletins. If vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	INSPECT BATTERY TERMINALS FOR POOR CONNECTION Switch the ignition off Inspect for poor connection and corrosion Are there any malfunction?	Yes	Repair or replace suspected part, then go to Step 7
3		No	Go to the next step.
4	INSPECT PCM CONNECTOR FOR POOR CONNECTION Switch the ignition off Disconnect the PCM connector Inspect for poor connection (such as damaged/pulled-out pins, corrosion) Is there any malfunction?	Yes	Repair or replace suspected part, then go to Step 7
4		No	Go to the next step
5	INSPECT MONITOR CIRCUIT FOR OPEN CIRCUIT Switch the ignition off Disconnect the battery cables Disconnect the PCM connector. Inspect the continuity between battery positive terminal (wiring harness-side) and PCM terminal 1V (wiring harness-side). Is there continuity?	Yes	Go to the next step
5		No	Repair or replace suspected part, then go to Step 7.
6	INSPECT FOR CORRECT PCM OPERATION Disconnect all the PCM connectors Visually inspect for. Pushed out pins Corrosion Connect all the PCM connectors and verify that they seat correctly. Retrieve DTCs using the M-MDS Is the PENDING CODE for this DTC present?	Yes	Go to the next step.
6		No	The system is correctly Go to the next step
7	VERIFY TROUBLESHOOTING OF DTC P0603:00 HAS BEEN COMPLETED Verify that all disconnected connectors are reconnected Switch the ignition ON (Engine off) Clear the DTC from the PCM memory using the M-MDS Perform the "KOEO and KOER self-test" (See KOEO/KOER SELF TEST [MZI-3.7] ) Retrieve DTCs using the M-MDS Is the PENDING CODE for this DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZI-3.7] .)
7		No	Go to the next step.
8	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PRECAUTION" (See AFTER REPAIR PROCEDURE [MZI-3.7] ) Are any DTCs present?	Yes	Go to the applicable DTC inspection (See DTC TABLE [MZI-3.7] )
8		No	Troubleshooting completed.