Alternative Fuel Hydraulic Pressure Sensor Circuit Low

Where it lives

For P2A7C, the sensor sits on the circuit this code reports. The description of P2A7C reports a fault at the sensor.

Check these first

• A short to ground on the alternative fuel hydraulic pressure sensor signal
• A failed hydraulic pressure sensor reading low
• Low reference voltage at the hydraulic pressure sensor
• Corrosion in the hydraulic pressure sensor connector
• A restricted hydraulic pressure port reading low

What to do next

1. Read alternative fuel hydraulic pressure on a scan tool
2. Test the hydraulic pressure sensor signal for a short to ground
3. Check the hydraulic pressure sensor reference voltage
4. Inspect the hydraulic pressure sensor connector and port
5. Replace the hydraulic pressure sensor if the circuit tests good
6. Clear the code and retest

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