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DTC P0504: Brake Switch Correlation

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DTC P0504: BRAKE SWITCH CORRELATION

Description:  The PCM does a comparison test between the brake pedal switch (BPS) and the brake pedal position (BPP) switch.
Possible Causes: 
  • Damaged brake switch
  • Open or short in the BPS circuit
  • Open or short in the BPP circuit
Diagnostic Aids:  Check the state of BPS PID and BPP PID. BPS is normally closed and BPP is normally open.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST FD .
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