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 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 repair information available?	Yes	Perform repair or diagnosis according to the available repair information. If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	INSPECT FUSE Switch the ignition to off. Disconnect the negative battery cable Remove the ENG+B 10 A fuse Inspect the fuse. Is there any malfunction?	Yes	Replace the fuse, then go to Step 7.
3		No	Go to the next step
4	INSPECT BATTERY Inspect the battery. (See BATTERY INSPECTION [L5] .) Is there any malfunction?	Yes	Recharge or replace the battery, then go to Step 7. (See BATTERY RECHARGING [L5] .) (See BATTERY REMOVAL/INSTALLATION [L5] .)
4		No	Go to the next step
5	INSPECT PCM CONNECTOR CONDITION Disconnect the PCM connector. Inspect for poor connection (such as damaged/pulled-out pins, corrosion) Is there any malfunction?	Yes	Repair or replace the terminal and/or connector, then go to Step 7.
5		No	Go to the next step.
6	INSPECT MONITOR CIRCUIT FOR SHORT TO GROUND OR OPEN CIRCUIT Install the fuse. Reconnect the negative battery cable. Switch the ignition to ON (engine off) Measure the voltage between PCM terminal 1C (wiring harness-side) and body ground. Is the voltage B+?	Yes	Go to the next step.
6		No	Repair or replace the wiring harness for a possible short to ground or open circuit, then go to the next step.
7	VERIFY DTC TROUBLESHOOTING COMPLETED Make sure to reconnect all disconnected connectors. Reconnect the negative battery cable. Clear the DTC from the PCM memory using the M-MDS Perform the KOEO/KOER self test (See KOEO/KOER SELF TEST [L5] .) Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [L5] .)
7		No	Go to the next step.
8	VERIFY AFTER REPAIR PROCEDURE. Perform the "AFTER REPAIR PROCEDURE" (See AFTER REPAIR PROCEDURE [L5] .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [L5] .)
8		No	DTC troubleshooting completed.