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 next step.
1		No	Record FREEZE FRAME DATA on the repair order, then go to next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Verify related Service Bulletins availability. Is any related Service Bulletins available?	Yes	Perform repair or diagnosis according to available Service Bulletins. If vehicle is not repaired, go to next step.
2		No	Go to the next step.
3	VERIFY RELATED PENDING CODE OR STORED DTC Verify the related PENDING CODE or stored DTCs. Are other DTCs present?	Yes	Go to appropriate DTC inspection. (See DTC TABLE [MZI-3.7] .)
3		No	Go to the next step.
4	INSPECT MAF SIGNAL SENT TO PCM Switch the ignition ON (Engine running) Access MAF PID using the M-MDS Is the voltage between 0.46-2.44 V	Yes	Perform the "INTERMITTENT CONCERN TROUBLESHOOTING". Then go to Step 10
4		No	Go to the next step.
5	INSPECT MAF SENSOR AND PCM CONNECTOR FOR POOR CONNECTION Switch the ignition off. Disconnect the MAF/IAT sensor and PCM connector. Inspect for poor connection (such as damaged/pulled-out pins, corrosion). Are there any malfunction?	Yes	Repair or replace suspected part, then go to Step 10.
5		No	Go to the next step.
6	INSPECT MAF SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT Switch the ignition off Inspect continuity between MAF sensor terminal B (wiring harness-side) and body ground Is there continuity?	Yes	Go to the next step.
6		No	Repair or replace suspected part, then go to Step 10
7	INSPECT MAF SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT Switch the ignition off Inspect continuity between MAF sensor terminal C (wiring harness-side) and PCM terminal 1AN (wiring harness-side). Is there continuity?	Yes	Go to the next step.
7		No	Repair or replace suspected part, then go to Step 10.
8	INSPECT MAF SENSOR Inspect the MAF sensor. (See MASS AIR FLOW (MAF) SENSOR INSPECTION [MZI-3.7] .) Is there any malfunction?	Yes	Replace the MAF/IAT sensor, then go to Step 10.
8		No	Go to the next step.
9	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.
9		No	The system is correctly. Go to the next step
10	VERIFY TROUBLESHOOTING OF DTC P1101:00 HAS BEEN COMPLETED Verify that all disconnected connectors reconnected Clear DTC from memory using M-MDS Start engine. Perform "KOEO/KOER self-test" (See KOEO/KOER SELF TEST [MZI-3.7] .) Is same DTC present?	Yes	Replace PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZI-3.7] .)
10		No	Go to the next step.
11	VERIFY AFTER REPAIR PROCEDURE Perform "AFTER REPAIR PROCEDURE" (See AFTER REPAIR PROCEDURE [MZI-3.7] .) Are any DTC present?	Yes	Go to the applicable DTC inspection (See DTC TABLE [MZI-3.7] )
11		No	Troubleshooting completed.