OBD-II code · Powertrain (generic)
P0E55 DC/DC Converter Current Sensor A Circuit Intermittent/Erratic
The ECM detects a intermittent/erratic fault on the dc/dc converter current sensor a circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0E55?
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
- 1–5 h
- Emissions test
- Usually unaffected
- Parts involved
- Dcdc Current Sensor A, Wiring Harness, Dcdc Converter
Related codes
- P0EA2DC/DC Converter Current Sensor B Circuit Intermittent/Erratic
- P0EA7DC/DC Converter Current Sensor C Circuit Intermittent/Erratic
- P0E52DC/DC Converter Current Sensor A Circuit Range/Performance
- P0E53DC/DC Converter Current Sensor A Circuit Low
- P0E54DC/DC Converter Current Sensor A Circuit High
- P0E56DC/DC Converter Input Voltage Too Low
- P0E57DC/DC Converter Input Voltage Too High
- P0E58DC/DC Converter Temperature Sensor C Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.