Engine Coolant Temperature Sensor 6 Circuit High

Where it lives

For P2BB9, the sensor sits on the circuit this code reports. The description of P2BB9 reports a fault at the sensor.

Check these first

• An open in the engine coolant temperature sensor 6 signal circuit
• A failed engine coolant temperature sensor 6 reading high
• A sensor 6 connector pin backed out
• A sensor 6 signal wire broken inside the insulation

What to do next

1. Scan all modules and read engine coolant temperature sensor 6 voltage
2. Inspect the sensor 6 connector for a backed out or spread pin
3. Test the sensor 6 signal circuit for an open
4. Measure sensor 6 resistance against the coolant range
5. Replace engine coolant temperature sensor 6 if the circuit tests good
6. Clear the code and retest

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