A Rocker Arm Actuator Control Circuit/Open Bank 1

Where it lives

For P2645, the actuator sits on the circuit this code reports. The description of P2645 puts it on bank 1.

Check these first

• An open in the bank 1 A rocker arm actuator control circuit
• A failed bank 1 A rocker arm actuator
• A loose or corroded rocker arm actuator connector
• Low engine oil pressure starving the actuator

What to do next

1. Command the bank 1 A rocker arm actuator on a scan tool
2. Test the actuator control circuit for an open
3. Check engine oil pressure and oil condition
4. Inspect the actuator connector
5. Replace the bank 1 A rocker arm actuator if the circuit and oil pressure test good
6. Clear the code and retest

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