B Camshaft Position Actuator Control Circuit Low Bank 1

Where it lives

For P2090, the actuator sits on the circuit this code reports. The description of P2090 puts it on bank 1.

Check these first

• A short to ground on the bank 1 B camshaft position actuator control wire
• A failed bank 1 B camshaft position actuator solenoid
• A low oil supply starving the bank 1 B actuator
• Corrosion at the actuator connector pulling the circuit low

What to do next

1. Read the bank 1 B camshaft position actuator circuit on a scan tool
2. Test the actuator control wire for a short to ground
3. Check the actuator solenoid resistance against spec
4. Inspect the engine oil level and condition
5. Replace the bank 1 B camshaft position actuator if the circuit tests good
6. Clear the code and retest

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