P0703 - Brake Switch B Circuit
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2017 Lincoln Navigator, 2017 Lincoln MKZ, 2017 Lincoln MKX, 2017 Lincoln MKT, and 2017 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
P0703 - BRAKE SWITCH B 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 Service Information, Vehicle Dynamic Systems. | ||
| All others | GO to Pinpoint Test FD . | ||