Check B2156 Fault Code
When you check engine light came on code B2156 the reason should be . However your vehicle's manufacturer may have a different definition for the B2156 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on our car models.
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B2156 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. |
B2156 Possible Fix :
Detonation, or spark knock, is a type of combustion caused by the buildup of too much heat and pressure in the engine's combustion chamber. When this happens, you should be able to hear a metallic knocking or pinging noise. A small amount of detonation usually won't cause major damage, but heavy knocks or prolonged detonation can cause serious damage to your parts. It can punch holes in your pistons, crush rod bearings, blow head gaskets, crack rings, and pound out piston ring grooves. Prolonged pinging noises are a definite cause for concern.
B2156 OBD-II Diagnostic Body (B) Trouble Code DescriptionB2156 Rear Doppler Sensor Circuit Failure so you have to check ODB-II Fault Code Check list.Reason For B2156 CodeThe reason of B2156 OBD-II Fault Code Check is B2156 Rear Doppler Sensor Circuit Failure. |
B2156 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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What does fault code B2156 mean ?
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How to Clear B2156 Trouble Code
An OBD 2 scanner is the best and safest way to erase a DTC from your car's system. This scanner communicates with the car's computer and instructs the computer to erase the code. It does not change or tweak the settings from inside the car or its systems.