Operation CHARM: Car repair manuals for everyone.

Key On Engine Running Test

Super Star II Tester:





1. Start the engine and run at idle until the vehicle is at operating temperature.
2. Turn the engine off.
3. Depress the "HOLD TEST" button to the "TEST" position.
4. Start the engine and let it idle.
5. Depress the brake pedal and turn the steering wheel one complete turn within 2 Sec. after the ID code.

Note: ID code is received at the beginning of the Key On Engine Running Inspection Procedure. The Super STAR II tester beeps once for every two cylinders of the engine (e.g., two beeps equals 4 cylinders). The ID code is used to verify the proper PCM is in the vehicle.


6. Note any diagnostic trouble code numbers and check for the causes by referring to the check sequences. Testing and Inspection
Repair as necessary.


Note: Cancel the diagnostic trouble code numbers by performing the after-repair procedure, following repairs. Clearing Diagnostic Trouble Codes
After repairs are made, recheck for diagnostic trouble code numbers by performing the Key On Engine Off Inspection Procedure.