Transmission Fluid Temperature Sensor C Circuit Low

Where it lives

For P274C, the circuit described runs through the sensor. The description of P274C reports a fault at the sensor.

Check these first

• A short to ground on the transmission fluid temperature sensor C signal wire
• A failed transmission fluid temperature sensor C
• A corroded transmission fluid temperature sensor C connector
• Water intrusion in the transmission fluid temperature sensor C connector

What to do next

1. Read transmission fluid temperature sensor C on a scan tool
2. Test the transmission fluid temperature sensor C signal wire for a short to ground
3. Measure transmission fluid temperature sensor C resistance
4. Check the transmission fluid temperature sensor C connector for water intrusion
5. Replace transmission fluid temperature sensor C if the circuit tests good
6. Clear the code and retest

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