Short Circuit In STH Amplifier

Checking Solenoid STH
- Ignition ON.
- Go into scrolling values.
- Read off current in solenoid circuit.
- Depress accelerator pedal (AP) slowly.
- The current should decrease as the accelerator pedal is depressed.

If reading is OK:
- Proceed to: Erase Diagnostic Trouble Code section below.

If reading is incorrect:
- Proceed to: Replacing Component section below.





Replacing Component
- Ignition OFF.
- Try a new transmission control module (TCM).
- Proceed to: Verification section below.





Erase Diagnostic Trouble Code
- Ignition ON.
- The transmission control module previously posted a fault.
- Erase diagnostic trouble code (DTC).
- Proceed to: Verification section below.





Verification
- After carrying out the repair, check that the fault has been remedied as follows:

- Ignition ON.
- Go into scrolling values.
- Read off current in solenoid circuit.
- Depress accelerator pedal slowly.

- The current should decrease as the accelerator pedal is depressed.

If reading is OK:
- Fault corrected.

If reading is incorrect:
- Proceed to: Fault-tracing Information section below.

Fault-tracing Information
The verification result shows that the fault persists.

- Do you want to exit fault-tracing?

Yes:
- Fault not corrected.

No:
- Proceed to: Checking Solenoid STH section above.