Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0223 DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED Has FREEZE FRAME PID DATA been recorded?	Yes	Go to next step.
1		No	Record FREEZE FRAME PID DATA on repair order, then go to next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Inspect for related Service Bulletins and/or online repair information availability. Is any related repair information available?	Yes	Perform repair or diagnosis according to available repair information. If vehicle is not repaired, go to next step.
2		No	Go to next step.
3	VERIFY STORED DTC Turn ignition key to ON (engine off). Verify stored DTC. Are DTCs P0122 and/or P0123 present?	Yes	Refer to flowchart for P0122 and/or P0123, and perform diagnostic troubleshooting.
3		No	Go to next step.
4	INSPECT TCM CONNECTOR FOR POOR CONNECTION Turn ignition key to OFF. Disconnect TCM connector. Inspect for poor connection (damaged, pulled-out terminals, corrosion, etc.). Is connection okay?	Yes	Go to next step.
4		No	Repair or replace connector and/or terminals, then go to Step 6.
5	INSPECT TCM CIRCUIT FOR OPEN CIRCUIT Disconnect TP sensor connector. Inspect for continuity between TCM terminal U (harness-side) and TP sensor terminal C (harness-side) Is there continuity between terminals?	Yes	Go to next step.
5		No	Repair or replace harness, then go to next step.
6	VERIFY TROUBLESHOOTING OF DTC P0223 COMPLETED Make sure to reconnect all disconnected connectors. Clear DTC from memory using WDS or equivalent. Start engine. Warm up AT. Drive vehicle under following condition for 2 seconds or more. Throttle position (TP PID): 0.1-4.9 V Is same DTC present?	Yes	Replace PCM, then go to next step. (See TRANSMISSION CONTROL MODULE (TCM) REMOVAL/INSTALLATION .)
6		No	Go to next step.
7	VERIFY AFTER REPAIR PROCEDURE Perform "AFTER REPAIR PROCEDURE ". (See AFTER REPAIR PROCEDURE .) Are any DTCs present?	Yes	Go to applicable DTC inspection.
7		No	Troubleshooting completed.