Test TC-15D - Speed Control Solenoid Circuits Or Speed Control Power Relay Circuits
NOTE:
Perform TEST TC-15A before proceeding.
NOTE:
For connector terminal ID, see CONNECTOR IDENTIFICATION DIRECTORY. For component location, see wiring diagram in the appropriate WIRING DIAGRAMS
article. See following list.
- 4.0L, see: WIRING DIAGRAMS - 4.0L 6-CYL .
- 5.2L, see: WIRING DIAGRAMS - 5.2L V8 .
- Turn ignition off. Disconnect Powertrain Control Module (PCM) connectors. Inspect connectors and terminals for damage. Repair connectors and terminals as necessary and perform TEST VER-4A. If connectors and terminals are okay, go to next step.
- Using an external ohmmeter, check resistance of S/C (ON/OFF switch sense) power supply circuit (Yellow/Red wire) between PCM Gray connector and brakelight switch connector. If resistance is less than 5 ohms, replace PCM and perform TEST VER-4A. If resistance is 5 ohms or more, repair open S/C (ON/OFF switch sense) power supply circuit and perform TEST VER-4A .