break lights
My 2007 chevy impala break lights stay lit up even when not pushing the breaks. The break light switch has already been changed. What else could be wrong?
Last edited by rneagle; Dec 26, 2017 at 2:41 PM.
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there will be a fault code set in the bcm to give you a starting point. getting it read and post the code here.
the brake pedal position switch...unplug the connector to it and see if the lights go off.
the switch is an input to the bcm. the bcm powers all 3 brake lights based on a signal from the switch. Its unlikely that 3 separate circuit has a short to power...either the switch is bad, set up wrong, short to power on the switch or the bcm is nfg.
the brake pedal position switch...unplug the connector to it and see if the lights go off.
the switch is an input to the bcm. the bcm powers all 3 brake lights based on a signal from the switch. Its unlikely that 3 separate circuit has a short to power...either the switch is bad, set up wrong, short to power on the switch or the bcm is nfg.




