3

My 2010 Subaru feels like it has been tampered with and is now throwing a bunch of random codes as well as the radiator fan kicks on and off repeatedly while the car is off but the key is in the on position.

  • 3
    Check under the driver dash there should be a green connector that should normally be unplugged. Was any work done recently? – Ben Sep 21 '17 at 22:34
  • Blinking check engine light is usually a bad misfire. What codes is it throwing? – Mark Johnson Sep 23 '17 at 2:05
1

Look for a bad ground or grounds. Battery, battery to block, etc. Clean those junctions down to bare metal. Multiple random codes means you are seeing back feeding from circuits that are looking for a ground path. That confuses the ECM's diagnostic process. Normally a flashing SES light is due to a misfire that will cause imminent catalytic converter damage. Code 300 is the misfire code. Sometimes code 301 is cyl #1, 302 cyl #2, etc. depending on manufacturer. Use star washers on your grounds to bite through paint and rust.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.