C1939 Trouble Code

View C1939 obd/2 error code description and symptoms. C1939 engine photo

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code C1939

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

Difficulty Level (Easy)
Level
Repair Time (20 Min.)
Time
Cost Prediction : $ 40-75

C1939 Error Code Repair Process :

If your c1939 brake pressure switch input circuit failure check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system C1939 and engine control unit are in charge of monitoring a bunch of different c1939 brake pressure switch input circuit failure, and if they get a reading that's a little out of whack, up pops the check engine light.

Wrench Tool C1939 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Common Causes of C1939

A common cause of code C1939 is the failure of C1939 Brake Pressure Switch Input Circuit Failure, but there are several other possible causes as well, such as ;

C1939 code for all cars

You can view according C1939 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C1939 Talbot Rapier +C1939 Saturn Astra +C1939 Westfield Zei +C1939 Chrysler Limousine +C1939 Volvo V90

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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