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 the FREEZE FRAME 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 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	VERIFY PID DATA FOR MAP SENSOR MALFUNCTION Connect the M-MDS to DLC-2. Access the MAP PID using the M-MDS. Disconnect the MAP sensor connector. Is the voltage above 4.9 V?	Yes	Go to the next step.
3		No	Go to Step 9.
4	INSPECT POWER SUPPLY CIRCUIT VOLTAGE AT MAP SENSOR CONNECTOR NOTE: If DTC P0122:00 is also retrieved with P0107.00, go to CONSTANT VOLTAGE troubleshooting procedure. Switch the ignition to ON (engine off). Measure the voltage between MAP sensor terminal C (wiring harness-side) and body ground. Is the voltage within 4.5-5.5 V?	Yes	Go to the next step.
4		No	Go to Step 6.
5	INSPECT MAP SENSOR CONNECTOR CONDITION Switch the ignition to off Disconnect the MAP sensor 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 12.
5		No	Replace the MAP sensor, then go to Step 12. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REMOVAL/INSTALLATION [L5] .)
6	INSPECT PCM CONNECTOR CONDITION Switch the ignition to off 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 12.
6		No	Go to the next step.
7	INSPECT MAP SENSOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND Inspect for continuity between MAP sensor terminal C (wiring harness-side) and body ground. Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to ground, then go to Step 12.
7		No	Go to the next step.
8	INSPECT MAP SENSOR POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT Inspect for continuity between MAP sensor terminal C (wiring harness-side) and PCM terminal 2AU (wiring harness-side). Is there continuity?	Yes	Go to Step 12.
8		No	Repair or replace the wiring harness for a possible open circuit, then go to Step 12.
9	INSPECT MAP SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND Switch the ignition to off Disconnect the PCM connector Inspect for continuity between MAP sensor terminal D (wiring harness-side) and body ground. Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to ground, then go to Step 12
9		No	Go to the next step.
10	INSPECT MAP SENSOR SIGNAL AND GROUND CIRCUITS FOR SHORT EACH OTHER Inspect for continuity between MAP sensor terminals D and A (wiring harness-side). Is there continuity?	Yes	Repair or replace the malfunctioning wiring harness, then go to Step 12.
10		No	Go to the next step.
11	INSPECT MAP SENSOR Inspect the MAP sensor. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR INSPECTION [L5] .) Is there any malfunction?	Yes	Replace the MAP sensor, then go to the next step. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REMOVAL/INSTALLATION [L5] .)
11		No	Go to the next step.
12	VERIFY DTC TROUBLESHOOTING COMPLETED Make sure to reconnect all disconnected connectors Switch the ignition to ON (engine off). 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] .)
12		No	Go to the next step
13	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] .)
13		No	DTC troubleshooting completed.