Hybrid/EV Electronics Coolant Temperature Sensor A Circuit
The ECM detects a circuit fault on the hybrid/ev electronics coolant temperature sensor a circuit. Reading cannot be used reliably for control.
Affected components
- Hybrid electronics coolant temp sensor a
- Wiring harness
- Hybrid control module
Common causes
- High likelihood: Sensor failed
- Medium likelihood: Wiring or connector fault
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.