Transmission Fluid Temperature Sensor B Circuit

Where it lives

For P2740, the sensor sits on the circuit this code reports. The description of P2740 reports a fault at the sensor.

Check these first

• An open in the transmission fluid temperature sensor B circuit
• A short in the transmission fluid temperature sensor B circuit
• A corroded transmission fluid temperature sensor B connector
• A failed transmission fluid temperature sensor B

What to do next

1. Read transmission fluid temperature sensor B on a scan tool
2. Measure transmission fluid temperature sensor B resistance hot and cold
3. Test the transmission fluid temperature sensor B circuit for open and short faults
4. Check the transmission fluid temperature sensor B connector pins
5. Replace transmission fluid temperature sensor B if the circuit tests good
6. Clear the code and retest

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