Camshaft Position Sensor B Circuit High (Bank 2)
What it means
The engine computer has seen the signal voltage from camshaft position sensor B on bank 2 stay above its normal limit. The usual cause is an open signal or ground wire, or a signal wire shorted to a voltage source.
Symptoms4
- Check engine light on.
- Reduced power because bank 2 exhaust cam variable valve timing (VVT) is disabled.
- Long cranking on some vehicles.
- Occasional slight roughness.
Possible causes5
- Open in the signal wire 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
- Watch the signal voltage on a scan tool and compare it with sensor B on bank 1.
- Inspect the connector for loose or corroded terminals.
- Check continuity of the signal and ground wires back to the engine computer.
- Unplug the sensor and confirm there is no unexpected voltage on the signal wire.
- If the circuit is sound, replace the sensor or swap it with an identical one to confirm.
How to fix5
- Repair the connector terminals and clean the connector.
- Repair the broken wire or the short to voltage.
- Repair a corroded ground point.
- Replace bank 2 cam sensor B if it is proven faulty.
- 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
How is this different from P0368?
It is the same type of electrical fault, but P0368 is for sensor B on bank 1 and this code is for sensor B on bank 2, so a different sensor and wiring are tested.
The code appeared after engine work. Why?
Often the sensor connector was not fully seated or a wire was pinched during reassembly, so start by checking the connector and wiring in the area that was worked on.
This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
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