OBD-II code · Powertrain (generic)
P05DD Brake Pedal Position Sensor B Circuit Low
Same as P057C on sensor B. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P05DD?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal shorted to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1.4 h
- Emissions test
- Usually unaffected
- Parts involved
- Brake Pedal Position Sensor B
Related codes
- P057CBrake Pedal Position Sensor A Circuit Low
- P05DAPCV Regulator Valve Control Circuit High
- P05DBBrake Pedal Position Sensor B Circuit Open
- P05DCBrake Pedal Position Sensor B Circuit Range or Performance
- P05DEBrake Pedal Position Sensor B Circuit High
- P05DFBrake Pedal Position Sensor B Circuit Intermittent or Erratic
- P05E0Brake Pedal Position Sensor A and B Correlation
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.