P0703 - Brake Switch B Input Circuit - DTC Chart

P0703 - BRAKE SWITCH B INPUT CIRCUIT - DTC CHART

Description: This DTC sets when the brake pedal position (BPP) input is missing.
Possible Causes: BPP circuit open BPP circuit short to ground Damaged modules connected to the BPP circuit Damaged brake switch Incorrectly adjusted brake switch
Diagnostic Aids: Check for correct function of the stoplamps. Using a scan tool, check the BPP PID. The stoplamps and PID should turn ON and OFF with brake pedal activation.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
Expedition, Navigator	Verify the brake pedal was applied and released during the key ON engine running (KOER) self-test. For additional concerns, refer to the service information , Vehicle Dynamic Systems.
All others	GO to Pinpoint Test FD .