Transmission Fluid Temperature Measurement System - Multiple Sensor Correlation

Where it lives

For P077E, the part to look at first is the sensor named here.

Check these first

• A faulty transmission fluid temperature sensor
• Corrosion in a sensor wiring or connector
• A sensor reading off from the rest
• Low or dirty transmission fluid
• A TCM software fault

What to do next

1. Compare all fluid temperature sensors on a scan tool
2. Inspect the sensor connectors for corrosion
3. Check the fluid level and condition
4. Replace the sensor that reads off from the rest
5. Check the TCM if all sensors agree but the code stays
6. Clear the code and retest

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