Test TC-50C - Transmission 3-4 Solenoid/Transmission Relay Circuits
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
NOTE:
Perform TEST TC-50A before proceeding. For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS . Perform VERIFICATION TEST VER-1A after each repair.
- Turn ignition off. Disconnect transmission solenoid connector. Inspect connector and terminals for damage. Repair connector and terminals as necessary. If connectors and terminals are okay, go to next step.
- Using an external ohmmeter, measure resistance between transmission control relay output circuit on transmission relay connector and terminal No. 21 on PCM White connector. If resistance is less than 5 ohms, repair transmission control relay output circuit for a short to 3-4 shift solenoid control circuit. If resistance is 5 ohms or more, replace transmission solenoid pack and wiring harness.