P0703 - Brake Switch B Input Circuit - DTC Chart
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 Lincoln Navigator, 2015 Lincoln MKZ, 2015 Lincoln MKX, 2015 Lincoln MKT, and 2015 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
P0703 - BRAKE SWITCH B INPUT CIRCUIT - DTC CHART
| 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 service information , Vehicle Dynamic Systems. | ||
| All others | GO to Pinpoint Test FD . | ||