Cylinder 7 Pressure Sensor Circuit Low

Where it lives

For P03D3, the circuit described runs through the sensor. The description of P03D3 puts it on cylinder 7.

Check these first

• A short to ground on the cylinder 7 pressure signal wire
• A failed cylinder 7 pressure sensor
• A pinched sensor 7 harness
• An open sensor 7 ground
• Low battery voltage at the sensors

What to do next

1. Check the cylinder 7 pressure signal voltage with the key on
2. Look for a short to ground in the sensor 7 harness
3. Verify sensor 7 reference voltage and ground
4. Inspect the cylinder 7 connector for damage
5. Replace the cylinder 7 pressure sensor if the circuit is clean
6. Clear the code and retest

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