Test TC-167B - Governor Pressure Sensor Volts Too Low
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
NOTE:
Perform TEST TC-167A 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. 4 on transmission solenoid connector and engine ground. If resistance is less than 5 ohms, repair short to ground in governor pressure sensor signal circuit. If resistance is 5 ohms or more, go to next step.
- Turn ignition off. Measure resistance between terminals No. 2 and 4 on transmission solenoid connector. If resistance is less than 5 ohms, go to step 5). If resistance is 5 ohms or more, go to next step.
- Ensure Powertrain Control Module (PCM) connectors are disconnected. Measure resistance between terminal No. 4 on transmission solenoid connector and terminal No. 29 on PCM white connector. If resistance is 5 ohms or more, repair open governor pressure sensor signal circuit. If resistance is less than 5 ohms, perform TEST TC-167C .
- Disconnect PCM connectors. Inspect connectors and terminals for damage. Repair connectors and terminals as necessary. If connectors and terminals are okay, go to next step.
- Measure resistance between terminals No. 2 and 4 on transmission solenoid connector. If resistance is less than 5 ohms, repair governor pressure sensor signal circuit for a short to 5-volt supply circuit. If resistance is 5 ohms or more, replace PCM.