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DTC P0703 - Brake Switch B Input Circuit

DTC DESCRIPTION P0703 - BRAKE SWITCH B INPUT CIRCUIT

Description:  The DTC sets when the PCM does not receive a brake pedal position (BPP) sensor input.
Possible Causes: 
  • BPP circuit open
  • BPP circuit short to ground
  • Damaged BPP switch
  • Incorrectly adjusted BPP switch
Diagnostic Aids:  Check for correct function of the stoplamps. The stoplamps should turn ON and OFF with brake pedal activation.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST FD .
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