P2B4A

B Camshaft Position Actuator Position Sensor B Circuit High Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unstable engine idling
The engine goes into emergency mode

Causes

Camshaft Position Sensor B Malfunction
Open or short circuit in the sensor circuit
Problems with the wiring harness or connectors
Engine control unit (ECU) malfunction
Problems with power or grounding of the sensor circuit

How to Fix

Check the continuity of the camshaft position sensor B
Check connectors and wiring harness for damage
Check the power supply and grounding of the sensor circuit
Replace camshaft position sensor B if necessary
Check and, if necessary, replace the engine control unit (ECU)

Related codes

P2B4B P2B49 P2B4C