A Camshaft Position Actuator Position Sensor B Range/Performance Bank 1

Where it lives

For P2B40, the description names the sensor as the part involved. The description of P2B40 puts it on bank 1.

Check these first

• An A camshaft position actuator position sensor B reading outside its range bank 1
• A failed A camshaft position actuator position sensor B
• An actuator stuck so sensor B never sweeps its full range
• Oil sludge or debris on the bank 1 actuator position sensor B

What to do next

1. Scan all modules and read the A camshaft position actuator position sensor B bank 1
2. Command the camshaft actuator through its full travel and watch sensor B
3. Inspect the sensor B connector and wiring for damage
4. Check engine oil condition and actuator phaser for sludge
5. Replace the A camshaft position actuator position sensor B if the sweep stays wrong
6. Clear the code and retest

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