P05E7: Park Brake Sensor/Switch Circuit Intermittent/Erratic
Methodology: We combine code standards with complaint and reliability patterns, then review for clear, vehicle-first diagnosis steps.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What Does P05E7 Mean?
P05E7 is a diagnostic trouble code indicating: Park Brake Sensor/Switch Circuit Intermittent/Erratic. This code relates to the vehicle speed and idle control system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Symptoms of P05E7
- β οΈ Check Engine Light (MIL) illuminated
- β οΈ Park Brake Sensor/Switch signal cutting in and out
- β οΈ Related system working sometimes but not consistently
- β οΈ Erratic idle speed
Common Causes
- π Loose or intermittent connection at Park Brake Sensor/Switch
- π Wire chafing causing intermittent contact
- π Park Brake Sensor/Switch failing under heat or vibration
- π Corroded connector pins with partial contact
Frequently Asked Questions
What does P05E7 mean?
Can I drive with code P05E7?
How much does it cost to fix P05E7?
What To Do Next
Possible Fixes
- π§ Inspect and reseat all Park Brake Sensor/Switch connectors
- π§ Repair chafed or damaged wiring in Park Brake Sensor/Switch circuit
- π§ Replace Park Brake Sensor/Switch if failing intermittently
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Find your vehicle above
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Check for recalls
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50β$150) pinpoints the root cause.