P0DEFPedestrian Alert Control Module Circuit High
- Generic OBD-II code · Powertrain
- How the car detects it
- P0DEF reports a voltage above the permitted window on the wired link to the pedestrian alert control module, most often because a wire touches a supply line or the line has lost its ground reference. No manufacturer documents P0DEF publicly. The consequence differs from the low case: a line stuck high may leave the module permanently woken or commanded, so instead of silence the alert can behave oddly, for example sounding when it should not or draining the 12 V battery while parked. Whether that happens depends on the design. The legal background is the same as for the siblings: FMVSS 141 and the EU require a warning sound for quiet vehicles at low speed. Ford names the unit PACM. P0DED is an open circuit, P0DEE a short to ground, U013F lost communication.
- What you may notice
- Pedestrian sound missing or sounding at the wrong time
- Warning message in the instrument cluster
- Possible 12 V battery drain while parked
- Likely causes
- LikelyWire pinched against a 12 V supply line
- PossibleLoose or corroded ground connection of the module
- RareInternal fault of the alert module or its driver
- Repair
- Medium · Often possible to do yourself.Typical cost: €40 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.