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.

NO CREEP AT ALL - DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	Does vehicle creep in any range/position except for P and N positions?	Yes	Go to next step.
1		No	Inspect or adjust the selector lever. (See SELECTOR LEVER ADJUSTMENT . )
2	Turn ignition switch to ON. Inspect voltages between the following TCM terminals and ground in D range. (See TRANSMISSION CONTROL MODULE (TCM) INSPECTION . ) Specification TCM terminal AQ: B+ TCM terminal AN: 0 V Are voltages okay?	Yes	Go to next step.
2		No	Inspect the following: Body ground condition TCM terminals AS and AR voltages: Specifications: B+
3	Disconnect shift solenoid connector. Turn ignition switch to ON. Inspect voltages between each shift solenoid terminal and ground in D range: Specification Terminal B: B+ Terminal A: 0 V Are voltages okay?	Yes	Inspect shift solenoid terminal for bending damage, corrosion, or loose connection. Inspect for mechanically stuck shift solenoids. (See SOLENOID VALVES INSPECTION . ) If shift solenoids are okay, go to next step.
3		No	Inspect for open or short circuit between TCM terminal and shift solenoid terminal.
4	Overhaul control valve body and repair or replace any defective parts. Is problem eliminated?	Yes	AT is now normal.
4		No	Replace torque converter. If problem remains, replace or overhaul transmission and repair or replace any defective parts.
5	Verify test results. If okay, return to diagnostic index to service any additional symptoms. If malfunction remains, inspect related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis. If vehicle is repaired, troubleshooting completed. If vehicle is not repaired or additional diagnostic information is not available, replace TCM.