P2B4B

B Camshaft Position Actuator Position Sensor B Circuit Bank 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unstable engine idling
Noticeable deterioration in vehicle dynamics

Causes

Open or short circuit in the sensor circuit
Malfunction of the camshaft position sensor itself
Connector problems or contact corrosion
Engine control unit malfunction
Mechanical problems of the variable valve timing system

How to Fix

Check the integrity of the sensor wiring and connectors
Measure resistance and voltage at the sensor
Check the operation of the VVT system mechanically
If necessary, replace the camshaft position sensor
Reset the error code and check if it returns

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