Check P1421 Fault Code

When you check engine light came on code P1421 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P1421 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P1421 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.

P1421 Possible Fix :

There could be a number of reasons for noisy brakes. It could be that your brake pads are loose, worn out, or you may have brake dust inside the drum. If you can't see anything wrong with your brake pads, and you suspect it may be brake dust, it may be best to leave this to a professional, brake dust can be extremely dangerous if accidentally inhaled.

P1421 OBD-II Diagnostic Powertrain (P) Trouble Code Description P1421 OBD-II Trouble Code Catalyst Damage is one of the definitions for the P1421; however your vehicles manufacturer may have a different definition for the P1421 code. Please check below for your specific make. Reason For P1421 Code The reason of P1421 OBD-II Fault Code Check is P1421 Catalyst Damage.

P1421 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.

What does fault code P1421 mean ? What does a diagnostic reading P1421 mean ? How to fix OBD2 Code P1421 ? What do we know about P1421 code ?

How to Clear P1421 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.