B Rocker Arm Actuator Position Sensor Circuit Bank 1

Where it lives

For P265A, the circuit described runs through the sensor. The description of P265A puts it on bank 1.

Check these first

• An open or short in the bank 1 B actuator position sensor circuit
• A failed bank 1 B rocker arm actuator position sensor
• A loose or corroded position sensor connector
• A poor ground at the bank 1 B position sensor

What to do next

1. Read the bank 1 B rocker arm actuator position on a scan tool
2. Test the position sensor circuit for opens and shorts
3. Check the position sensor connector and ground
4. Verify reference voltage at the sensor
5. Replace the bank 1 B rocker arm actuator position sensor if the circuit tests good
6. Clear the code and retest

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