Test TC-171C - Governor Pressure Solenoid/Trans Relay Circuits
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
NOTE:
Perform TEST TC-171A 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 connector and terminals are okay, go to next step.
- Using an external ohmmeter, measure resistance between terminal No. 30 on Powertrain Control Module (PCM) connector and transmission control relay output circuit on transmission relay connector. If resistance is more than 5 ohms, repair short in governor pressure solenoid circuit. If resistance is less than 5 ohms, go to next step.
- Drain and remove transmission pan. Reconnect transmission solenoid connector. Disconnect governor pressure solenoid connector. Measure resistance between terminal No. 30 on Powertrain Control Module (PCM) connector and transmission control relay output circuit on transmission relay connector. If resistance is less than 5 ohms, replace internal transmission wiring harness. If resistance is 5 ohms or more, replace governor pressure solenoid.