DTC P0504: - Brake Switch Correlation
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2009 Mercury Mountaineer, 2009 Mercury Milan, 2009 Mercury Mariner, 2009 Mercury Grand Marquis, and 2009 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0504: - BRAKE SWITCH CORRELATION
| Description: | The PCM does a comparison test between the brake pedal switch (BPS) and the brake pedal position (BPP) switch. | ||
| Possible Causes: |
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| Diagnostic Aids: | Check the state of PID BPS and PID BPP. BPS is normally closed and BPP is normally open. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test FD . | ||