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Heads up on P0504 brake switch correlation.

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lmorris

By lmorris
in Body, Chassis and Electrical

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lmorris

lmorris

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Just finished one up with this code. PPT AI only monitors BOO1 and led to no fault found, yet code would not clear. Went into PID data and found BOO1 and BOO2, BOO2 was not switching. Checked brake pedal switch wires, no issues, changed switch and all is good. Not sure why the PPT didn't look at BOO2, which is used for cruise cut-out. Could find no reference to BOO2 anywhere in PCED or WSM.

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