Motor Electronics Coolant Temperature Sensor B Circuit Low
The motor electronics coolant temperature sensor B reports a circuit low condition. Power electronics cooling cannot be regulated reliably.
Affected components
- Motor electronics coolant temp sensor b
- Wiring harness
- Hybrid control module
Common causes
- High likelihood: Signal wire shorted to ground
- Medium likelihood: Internal sensor short
- Low likelihood: Connector pins corroded - high contact resistance
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Related codes
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.