What does P1618 mean?

This error relates to an incorrect voltage being supplied to a different sensor (sensor supply 2). The ECU relies on correct sensor voltages for accurate data.

• Damaged wiring to the sensor
• Defective sensor
• Problem with the ECU's internal voltage regulation for sensors

Click steps to track your progress.

1. 1

   Inspect the harness and connector of the associated sensor.

2. 2

   Test the sensor's resistance and function if possible.

3. 3

   If the problem persists, the ECU might be the source of the voltage issue.