P0703 - Brake Switch B Input Circuit
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2014 Lincoln Navigator, 2014 Lincoln MKZ, 2014 Lincoln MKX, 2014 Lincoln MKT, and 2014 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
P0703 - BRAKE SWITCH B INPUT CIRCUIT
| Description: This DTC sets when the brake pedal position (BPP) input is missing. | |||
Possible Causes:
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| 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 Vehicle Dynamic Systems. | ||
| All others | GO to PINPOINT TEST FD: BRAKE PEDAL INPUTS . | ||