Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2004FOCUS ZX3, 2.3 Z, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS - CNG, FLEX-FUEL & GASOLINEDIAGNOSTIC TROUBLE CODE (DTC) CHARTSP1572 - BRAKE PEDAL SWITCH CIRCUIT
2004 Ford Focus ZX3, 2.3 Z, Standard
P1572 - Brake Pedal Switch Circuit
2004 Ford Focus ZX3, 2.3 Z, StandardSECTION P1572 - Brake Pedal Switch Circuit
P1572 - BRAKE PEDAL SWITCH CIRCUIT
| Description: | Indicates the brake input rationality test for brake pedal position (BPP) and brake pressure applied (BPA) switches has failed. One or both inputs to the PCM did not change state when expected.
NOTE:
On vehicles with stability assist, the BPP switch is connected to the ABS module and the ABS generates a Driver Brake Application (DBA) signal, which is then sent to the PCM.
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| Possible Causes: |
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| Diagnostic Aids: | DTC P1572 is set when the PCM does not sense the proper sequence of the brake pedal input signal from both the BPP and BPA switches when the brake pedal is applied and released. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | - | - | GO to FD: Brake Pedal Inputs STEP 3 |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.