Transmission Fluid Pressure Sensor/Switch A Circuit Intermittent

Where it lives

For P0844, the circuit described runs through the sensor. The description of P0844 reports a fault at the sensor.

Check these first

• A sensor A connector with loose pins
• Chafed wiring along the sensor A run
• A sensor A that drops out when warm
• Debris in the transmission fluid
• A TCM fault

What to do next

1. Road test and watch sensor A pressure
2. Wiggle test the sensor A wiring and connector
3. Check the fluid level and condition
4. Reread sensor A while hot
5. Replace sensor A if the signal cuts out
6. Clear the code and retest

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