OBD-II code · Powertrain (generic)
P0CA0 14 Volt Power Module Current Sensor B Circuit Intermittent
The ECM detects a intermittent fault on the 14 volt power module current sensor b circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0CA0?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor connector not seated
- PossibleNoisy ground reference
- Less likelyConnector with intermittent contact under vibration
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 B, Wiring Harness, Dcdc Converter
Related codes
- P0A8A14 Volt Power Module Current Sensor A Circuit Intermittent
- P0C9D14 Volt Power Module Current Sensor B Circuit Range/Performance
- P0C9E14 Volt Power Module Current Sensor B Circuit Low
- P0C9F14 Volt Power Module Current Sensor B Circuit High
- P0CA1Drive Motor Control Module Requested MIL Illumination
- P0CA2DC/DC Converter Step Down Voltage Performance
- P0CA3DC/DC Converter Step Up Voltage Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.