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SES Light? [Archive] - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

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coolcloo1019
01-02-2007, 07:00 PM
So after a month of having my tune in, I started the truck up tonight and the SES light was on. Does that mean it's time to take it in and have the CASE relearn done now?

Kelly_PCMforless
01-02-2007, 09:35 PM
An SES light can be for a hundred different things...you need to have the code read first before making a plan.

coolcloo1019
01-03-2007, 01:30 PM
Well I stopped at the local Autozone during lunch today and they scanned the code for me. It says: P1336 Manufacturer Control. Ignition system or Misfire. Will the CASE Relearn take care of that? I'm afraid of taking it anywhere, I hate for either the dealership or a mechanic to reflash the PCM back to stock. I think I'd cry...