How to Reset a 2002 Subaru Outback OEM Without Unhooking the Battery

On a 2002 Subaru Outback with OEM equipment (standard battery and OBDII (on board diagnostic) connector), the check-engine light is an indication that a failure has occurred in one of the computer subsystems. The light can also be turned on by a signal from one of the computer's sensors. If one the sensors is faulty or something causes it to send a signal that is out of the normal parameters, the computer will sense that and turn on the light.

Things You'll Need

• Automotive code scanner

Instructions

1. Plug the code scanner into the OBDII connector port on the driver's side of the vehicle; the port is located under the steering column.

2. Turn the ignition key to the run position and press the "Read" button on the scanner. In a few seconds the scanner will display a code. The code will lead off with a letter (such as a "P") followed by four numbers. Decipher the code with the code book that came with the code scanner. Cross-reference the numbered code for the explanation of the failure.

3. Correct the problem before attempting to erase the code, or else the code will just return.

4. Turn the key on again and this time press the "Erase" key on the scanner. In a few seconds, the scanner should display "Codes erased," thus turning out the check engine light.

References

• Don Bowman, A.S.E. Certified Mechanic