Tech Tip Corner
Late Model Mitsubishi Galant
Code 15 stored in PCM memory - Idle Motor Position Sensor
CAUSE: Code 15 is set if the Idle Motor Position Sensor (MPS) is out of range
as compared to the Throttle Position Sensor (TPS).
DIAGNOSIS: Most common failures are faulty idle speed adjusting proce - dures,
carbon build-up on throttle plates, defective idle switch contacts or a faulty sensor.
With the engine in Park or Neutral and at operating
temperature, and all electrical loads Off , the MPS voltage
should be between 500 to 1300mV (milliVolts). With the A/C
ON, the value should increase to 800 to 1800mV, and in Drive
with the A/C ON, should be between 900 and 1900mV.
|
Previous
| Tech Tip Index |
Next
