OBD-II code · Powertrain (generic)
P0C9E 14 Volt Power Module Current Sensor B Circuit Low
The ECM detects a low fault on the 14 volt power module current sensor b circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0C9E?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to ground
- PossibleInternal sensor short
- 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 B, Wiring Harness, Dcdc Converter
Related codes
- P0A8814 Volt Power Module Current Sensor A Circuit Low
- P0C9BHybrid/EV Battery Temperature Sensor L Circuit Intermittent/Erratic
- P0C9C14 Volt Power Module Current Sensor B Circuit
- P0C9D14 Volt Power Module Current Sensor B Circuit Range/Performance
- P0C9F14 Volt Power Module Current Sensor B Circuit High
- P0CA014 Volt Power Module Current Sensor B Circuit Intermittent
- P0CA1Drive Motor Control Module Requested MIL Illumination
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.