Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

Short-Circuit In The STH Amplifier






Short-circuit in the STH amplifier

Checking solenoid STH




- Ignition on.
- Go into scrolling values.




- Read off the current through the solenoid circuit.
- Depress the accelerator pedal (AP) slowly.

The current should decrease as the accelerator pedal (AP) is depressed.

OK - Fault-tracing information

Not OK - Replacing the component

-------------------------------------------------

Replacing the component




- Ignition off.
Try a new control module according to Replacing the transmission control module (TCM) .





Continue - Verification

-------------------------------------------------

Fault-tracing information
The control module has previously registered a fault.
No further fault-tracing is required.

Continue - DONE

-------------------------------------------------

Verification




Verification

Hint: After repairs have been completed they must be verified as follows to ensure that the fault has been eliminated:




- Ignition on.
- Go into scrolling values.
- Read off the current through the solenoid circuit.
- Depress the accelerator pedal (AP) slowly.





The current should decrease as the accelerator pedal (AP) is depressed.

OK - VERIFIED

Not OK - VERIFICATION FAILED

------------------------

VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

-------------------------------------------------

Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test

------------------------

Attempt New Test - Checking solenoid STH

-------------------------------------------------