NOTE:
- Record all freeze data before you troubleshoot.
- The illustration shows the example of connector terminal arrangement; connector terminal arrangement varies with the models.
- Turn the ignition switch OFF.
- Disconnect PCM connectors A (31P) and C (22P).
- Turn the ignition switch ON (II).
- Measure the voltage between PCM connector terminals C4 and A23 or A24.
PCM CONNECTORS
Wire side of female terminals
Is there voltage?
YES - Repair short to power in the wire between PCM connector terminal C4 and the shift solenoid valve B. 
NO - Go to step 5.
- Turn the ignition switch OFF.
- Measure the resistance between PCM connector terminals C4 and A23 or A24.
PCM CONNECTORS
Wire side of female terminals
Is there 12-25 ohm?
YES - Check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.
NO - Go to step 7.
- Check for continuity between PCM connector terminal A23 and body ground and between terminal A24 and body ground.
PCM CONNECTOR A (13P)
Wire side of female terminals
Is there continuity?
YES - Go to step 8.
NO - Repair open in the wires between PCM connector terminals A23 and A24 and ground (G101), or repair poor ground (G101).
