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 TP SENSOR NO. 1 MALFUNCTION Connect the M-MDS to the DLC-2. Access the TP1 PID using the M-MDS. Connect a jumper wire between throttle body terminals A and B (wiring harness-side). 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 THROTTLE BODY CONNECTOR NOTE: If DTC P0107:00 is also retrieved with P0122.00, go to CONSTANT VOLTAGE troubleshooting procedure. Switch the ignition to ON (engine off). Measure the voltage between throttle body terminal B (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 THROTTLE BODY CONNECTOR CONDITION Switch the ignition to off. Disconnect the throttle body 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 throttle body, then go to Step 12. (See INTAKE-AIR SYSTEM 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 TP1 POWER SUPPLY CIRCUIT FOR SHORT TO GROUND Inspect for continuity between throttle body terminal B (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 TP1 POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT Inspect for continuity between throttle body terminal B (wiring harness-side) and PCM terminal 2AO (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 TP1 SIGNAL CIRCUIT FOR SHORT TO GROUND Inspect for continuity between throttle body terminal A (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 TP1 SIGNAL AND GROUND CIRCUITS FOR SHORT EACH OTHER Inspect for continuity between throttle body terminals A and D (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 TP SENSOR NO. 1 Inspect the TP sensor No. 1. (See THROTTLE POSITION (TP) SENSOR INSPECTION [L5] .) Is there any malfunction?	Yes	Replace the throttle body, then go to the next step. (See INTAKE-AIR SYSTEM 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.