2002 Trailblazer won t lol up on diagnostic port after we changed factory radio to aftermarket why won t it link and wht reduced engine power light on

Asked by GuruTW542 Jun 17, 2018 at 06:33 PM about the 2002 Chevrolet Trailblazer LS RWD

Question type: Maintenance & Repair

Won't link on an obd reader and headlight s quit
working and reduced engine light on . Not running
right.  Changed factory radio to aftermarket and
now all this problem

4 Answers

No I didn't find the problem I can't get the one reader to work to tell me a problem if there is a code. It says communication error won't link up. Then after changing the radio from factory to aftermarket the reduce engine power and service engine light won't go off . Truck won t run over 39 mph and headlights won t work.

34,290

Yes you did,Your issues started after you put in that radio,that's your issue,Pull that radio out and reinstall the factory one properly and your issue should be gone.

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