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Check P20B3 Fault Code

When you check engine light came on code P20B3 the reason should be . However your vehicle's manufacturer may have a different definition for the P20B3 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P20B3 Code Reason

P20B3 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

P20B3 Possible Fix :

Probably the biggest result of injector failure is due to the injectors having excessive return flow or back leakage. This is due to worn parts which allow excessive fuel to go through the diesel injector and to return back to the tank or fuel system. This causes a drop in rail pressure which results in hard starting or not starting at all.

P20B3 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P20B3 Reductant Heater Coolant Control Valve Circuit Low so you have to check ODB-II Fault Code Check list.

Reason For P20B3 Code

The reason of P20B3 OBD-II Fault Code Check is P20B3 Reductant Heater Coolant Control Valve Circuit Low.

P20B3 Solution:

Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.

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