B Camshaft Profile Actuator C Control Circuit High Bank 1

Common symptoms

What you'll notice

• Inspect and repair any damaged wiring or connections related to the B camshaft profile actuator control circuit.
• Check and replace the B camshaft profile actuator if it is faulty or worn
• out.
• Verify the engine control module (ECM) software for any updates or reprogramming, as it may contain fixes for issues related to the B camshaft profile actuator control circuit.
• Test the camshaft position sensor and replace it if necessary, as a faulty sensor can affect the control circuit.
• Perform a thorough inspection of the camshaft itself for any damage or wear, and consider replacing it if needed.

Common causes

Most likely first

1. Faulty camshaft position sensor
2. Damaged wiring or connectors in the camshaft profile actuator circuit
3. Clogged or stuck camshaft profile actuator
4. Issues with the engine control module (ECM) or powertrain control module (PCM)
5. Malfunctioning variable valve timing (VVT) solenoid

How to diagnose & fix

Work through it in order

1. Engine misfires or runs rough
2. Decreased engine performance
3. Engine stalls or fails to start
4. Loss of power or acceleration
5. Check Engine light illuminates