P0BE3Drive Motor Inverter Temperature Sensor F Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0BE3 is the high-signal fault of inverter temperature sensor F, GM's phase W thermistor in the motor B inverter. With an NTC element and pull-up, an open circuit or a sensor that has lost ground drives the voltage up, which the controller reads as an implausibly cold inverter. GM only judges this after the inverter has worked for at least 90 s at 20 Nm or more: below -50 °C for 2.625 of 3.65 s sets Type B, two trips (2016 and 2018 tables), or Type A for 6.25 of 8.75 s (2019). The 2011 Volt uses below -58 °C (Type A), the 2012 and 2013 two-mode trucks below -40 °C (Type B). Expect limited output from motor B until the circuit is repaired.
- What you may notice
- Malfunction indicator lamp and hybrid warning
- Reduced power from drive motor B once warmed up
- Likely causes
- LikelyOpen thermistor or broken connection inside the power inverter module
- PossibleLoose or corroded connector at the inverter
- RareLost sensor reference ground on the sensing board
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.