1. Checking Line Pressure Solenoid STH

Checking Line Pressure Solenoid STH







- Ignition off.
- Remedy control module and automatic transmission connector for contact resistance and oxidation according to Checking wiring and terminals. Permanent faults.
- Reinstall components, reconnect connectors etc.
- Raise the car so that the drive wheels are unimpeded.
- Start car.
- Read off current in solenoid circuit.
- Apply the brakes and shift the gear selector to position D.
- Depress accelerator pedal (AP) slowly.

If the current reduces as the accelerator pedal (AP) is depressed, the cause of the fault was contact resistance or oxidation.

Other Information:
- To disconnect control module, see Replacing the transmission control module (TCM).
- To disconnect transmission connector, see Inspecting/cable harness to solenoids.

Does current reduce when the accelerator pedal (AP) is depressed?

YES: Refer to Trouble Code Descriptions. Diagnostic Trouble Code Descriptions
NO: Refer to Checking Wiring and Components. 2. Checking Wiring and Components