Camshaft Position Sensor A Circuit High (Bank 2)

What it means

The engine computer has seen the signal voltage from camshaft position sensor A on bank 2 stay above its normal limit. This usually comes from an open signal or ground wire, or a signal wire shorted to a voltage source.

Related codes: P0345P0347P0343P0641

Symptoms4

• Check engine light on.
• Reduced power because variable valve timing (VVT) on bank 2 is disabled.
• Long cranking on some vehicles.
• Occasional slight roughness.

Possible causes5

• Open in the sensor signal or ground wire.
• Loose or corroded connector terminal.
• Signal wire shorted to a supply wire in the harness.
• Internal sensor failure.
• Faulty engine computer (rare).

How to diagnose5

1. Watch the sensor signal voltage on a scan tool and compare it with the bank 1 sensor.
2. Inspect the connector for loose or corroded terminals.
3. Check continuity of the signal and ground wires between the sensor and the engine computer.
4. Unplug the sensor and confirm there is no unexpected voltage on the signal wire.
5. If the circuit is sound, replace the sensor, or swap it with the bank 1 sensor if identical to confirm.

How to fix5

1. Repair loose connector terminals and clean the connector.
2. Repair the broken wire or the short to voltage.
3. Repair a corroded ground point.
4. Replace the bank 2 cam sensor if it is proven faulty.
5. Clear the codes and confirm a steady signal with no return of the code.

Repair cost

In Saudi riyals; the highlighted part is the expected range for this fault.

The cost is low for a terminal or wire repair, and rises when the sensor is replaced or is hard to reach on bank 2.

Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026

Frequently asked questions