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Error Code B3949 Pontiac Montana

I have a 2006 Pontiac Montana with a 3.9L engine. I'm getting the error code B3949. How do I fix it?

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Does your right front turn signal work ? the letter B denoted body code and 3949indicates right front light signal. There's nothing wrong with the engine you have a problem with the circuit for your blinker. Hope this helps

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@jimfixer , where did you find this Bxxxx code, good job.

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@lpfaff1 I have a OBDII reader that does all codes including body , ABS and SRS codes I looked it up on that.

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