P1609 - Sensor supply voltage error 1

What does P1609 mean?

This code indicates a problem with the voltage supplied to one of the ECU's sensors (sensor supply 1). Incorrect voltage can lead to inaccurate sensor readings.

• Faulty sensor wiring
• Issue with the ECU's sensor power output
• Connected sensor is drawing too much power

Click steps to track your progress.

1. 1

   Check the wiring and connections for the affected sensor.

2. 2

   Inspect the ECU's power output for sensor 1.

3. 3

   If the wiring is intact, the ECU or sensor may be faulty.