B Camshaft Position Actuator Position Sensor A Circuit Bank 1

Where it lives

For P34BC, the circuit described runs through the sensor. The description of P34BC puts it on bank 1.

Check these first

• A fault in the bank 1 B actuator position sensor A circuit
• A loose or corroded connector at the bank 1 B position sensor A
• A failed bank 1 B actuator position sensor A
• A bank 1 B signal that drifts or drops out

What to do next

1. Read the bank 1 B actuator position sensor A value on a scan tool
2. Check the bank 1 B sensor A connector for corrosion and moisture
3. Test the bank 1 B sensor A circuit for open and short faults
4. Compare the bank 1 B reading to the commanded actuator angle
5. Replace the bank 1 B actuator position sensor A if the circuit tests good
6. Clear the code and retest

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