TorqueMech OBD Code Guide
P0189 - Fuel Temperature Sensor B Circuit Intermittent
The fuel temperature sensor B signal is cutting in and out intermittently.
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Code Overview
The fuel temperature sensor B signal is cutting in and out intermittently.
Common Causes
- Failed fuel temperature sensor B
- Damaged wiring or connector at the fuel temperature sensor B
- Open or short in the circuit
Diagnostic Steps
- Inspect the fuel temperature sensor B connector and wiring
- Verify reference voltage, ground, and signal
- Compare scan data to a realistic known-good reading
Related OBD Codes
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Next Steps
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