Powertrain, generic · Hybrid propulsion

P0BE0 Drive Motor Inverter Temperature Sensor F Circuit

Check engine lightOn

EmissionsRelevant

Drive cycleNot required

Limp modePossible

Sensor F is, in GM's hybrid tables, the third thermistor of the motor B inverter (inverter B sensor #3), the counterpart of sensor E in the motor A inverter; the 2016 to 2019 tables assign it to phase W. Other makers may use the letter differently. P0BE0 is its general circuit code for an electrical fault the controller does not narrow down to low, high or erratic. No manufacturer documents this exact code publicly; GM reports P0BE1, P0BE2 and P0BE3 instead. CARB requires hybrid sensor circuits to be monitored. Without a valid reading the controller cannot protect that inverter phase and usually limits the motor it drives. Read all stored codes, since inverter faults rarely come alone.

Likely causes

Internal fault of the thermistor or its circuit inside the power inverter module

Corroded or loose connector at the inverter module

Software fault in the motor control processor

Symptoms

Malfunction indicator lamp or hybrid system warning
Reduced power from drive motor B
Higher fuel consumption in hybrid operation

Repair estimate

DifficultyShop_onlyWorkshop job

Parts and labour€150–4,000

Time1–6 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

drive motor inverter temp sensor fwiring harnesshybrid control module

References: law.cornell.edu, gsi.ext.gm.com, gsi.ext.gm.com.