OBD-II code · Powertrain (generic)
P0A88 14 Volt Power Module Current Sensor A Circuit Low
The current sensor A of the 14V DC/DC converter module reports a circuit low fault. 12V system current measurement is unreliable.
Is it safe to drive with P0A88?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyCurrent sensor failed
- PossibleWiring fault
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Pm14v Current Sensor A, Wiring Harness, Dcdc Converter
Related codes
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Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.