P1051
Brake Switch Signal Missing or Improper
Findings, check these first
- Failed brake switch
- Misadjusted switch after pedal work
- Blown brake lamp fuse
- Open switch signal wire
- Corroded switch connector
Standard procedure
- Verify brake lamp function
- Check switch adjustment and mounting
- Test the fuse under load
- Measure switch continuity through pedal travel
- Replace the switch if the signal is missing
Code lookup
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Sources and review
Review: qualified. Read the source limits below.
- OBDII.pro: P1051 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1051: Brake Switch Signal Missing or Improper
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Last updated 2026-09-05.
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