F73 Fault — Water pressure sensor reading too low or disconnected

What does F73 mean?

The water pressure sensor is reporting a value that is too low, or there is an interruption or short circuit in the sensor or its supply line.

• Interruption/short circuit of water pressure sensor
• Interruption/short circuit in supply line to water pressure sensor
• Water pressure sensor defective

Click steps to track your progress.

1. 1

   Check the continuity down the wiring harness to the pressure sensor (requires specialist tools).

2. 2

   Check the voltages to the pressure sensor (requires specialist tools).

3. 3

   Check for any signs of moisture around the plug on the pressure sensor.