P0E27
Drive Motor Inverter Temperature Sensor G Circuit Intermittent/Erratic
The ECM detects a intermittent/erratic fault on the drive motor inverter temperature sensor g circuit. Reading cannot be used reliably for control.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: easy
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Common causes
Ordered by how often each turns out to be the cause.
- Sensor connector not seatedCommon
- Noisy ground referencePossible
- Connector with intermittent contact under vibrationLess likely
Parts involved
- Drive Motor Inverter Temp Sensor G
- Wiring Harness
- Hybrid Control Module
P0E27 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.