A Camshaft Position Actuator Position Sensor B Circuit Low Bank 2

Where it lives

For P2B45, the sensor sits on the circuit this code reports. The description of P2B45 puts it on bank 2.

Check these first

• A short to ground on the A camshaft position actuator position sensor B signal bank 2
• A failed A camshaft position actuator position sensor B
• A sensor B harness chafed to ground on the bank 2 head
• Oil intrusion into the sensor B connector

What to do next

1. Scan all modules and read the A camshaft position actuator position sensor B voltage bank 2
2. Inspect the bank 2 sensor B connector for oil or corrosion
3. Test the sensor B signal wire bank 2 for a short to ground
4. Command the bank 2 actuator and watch sensor B
5. Replace the A camshaft position actuator position sensor B if the circuit is sound
6. Clear the code and retest

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