Engine Disconnect Clutch Pressure Sensor Circuit High

Where it lives

For P28F4, the circuit described runs through the sensor. The description of P28F4 reports a fault at the sensor.

Check these first

• A short to voltage on the engine disconnect clutch pressure sensor signal
• An open ground on the engine disconnect clutch pressure sensor return
• A failed engine disconnect clutch pressure sensor reading high
• Corrosion in the engine disconnect clutch pressure sensor connector
• High disconnect clutch apply pressure pegging the sensor

What to do next

1. Read engine disconnect clutch pressure sensor voltage on a scan tool
2. Check sensor voltage with the key on and engine off
3. Test the disconnect clutch pressure sensor signal wire for a short to voltage
4. Check the disconnect clutch pressure sensor ground and connector
5. Replace the disconnect clutch pressure sensor if the circuit tests good
6. Clear the code and retest

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