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C3812 Engine Trouble Code

Meaning of C3812 engine trouble code is a kind of chassis trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

C3812 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for C3812 code is occuring now you should check C3812 repair processes.
Now don't ask yourself; What should you do with C3812 code ?
The solution is here :

C3812 Possible Solution:

C3812 Engine

Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.

C3812 Code Meaning :

C 3 8 1 2
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Ignition System Or Misfire Engine Oil Temperature Sensor Malfunction Engine Shutoff Solenoid Malfunction Glow Plug/Heater Circuit 'A' Malfunction

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

C3812 OBD-II Diagnostic Chassis (C) Trouble Code Description

C3812 engine trouble code is about Glow Plug/Heater Circuit 'A' Malfunction.

Main reason For C3812 Code

The reason of C3812 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

C3812 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.