What this code means

The electrical circuit for the camshaft profile actuator A on Bank 1 is malfunctioning. The PCM cannot properly command the cam profile switch.

Symptoms

• Check Engine Light
• No cam profile switching
• Reduced high-RPM performance
• Engine feels flat above mid-RPM
• Poor fuel economy at highway speeds

Common causes

• Open or short in actuator circuit
• Faulty actuator solenoid coil
• Corroded connector pins
• PCM driver failure
• Damaged wiring near exhaust

Diagnostic steps

1. Measure voltage at actuator connector
2. Test actuator solenoid resistance
3. Inspect wiring for damage near exhaust manifold
4. Check PCM output with oscilloscope
5. Verify connector pin condition

Repair notes

Repair wiring or replace cam profile actuator solenoid.

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