OBD-II code · Powertrain (generic)
P0E37 DC/DC Converter Voltage Sensor B Range/Performance
The ECM detects a range/performance fault on the dc/dc converter voltage sensor b. Reading cannot be used reliably for control.
Is it safe to drive with P0E37?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor characteristic drifted
- PossibleSensor mounting displaced
- Less likelySensor element aged beyond calibration window
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 Voltage Sensor B, Wiring Harness, Dcdc Converter
Related codes
- P0E32DC/DC Converter Voltage Sensor A Range/Performance
- P0E34DC/DC Converter Voltage Sensor A High
- P0E35DC/DC Converter Voltage Sensor A Intermittent/Erratic
- P0E36DC/DC Converter Voltage Sensor B Circuit
- P0E38DC/DC Converter Voltage Sensor B Low
- P0E39DC/DC Converter Voltage Sensor B High
- P0E3ADC/DC Converter Voltage Sensor B Intermittent/Erratic
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.