C1977 Trouble Code

View C1977 obd/2 error code description and symptoms. C1977 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 C1977

To check for an open circuit, trace along the length of the transmission control circuit, checking for breaks in the wiring. Repair any broken wiring and make sure all connectors are fully seated and locked.Pay close attention to connectors, looking for corrosion, bent or broken pins, or moisture in the connector. Repair any connector issues even if they are not specifically part of the transmission control circuit as they may serve a function in providing power to the transmission control circuit.

Difficulty Level (Soso)
Level
Repair Time (50 Min.)
Time
Cost Prediction : $ 30-110

C1977 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine C1977 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If cooling fan rationality check malfunction so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the cooling fan rationality check malfunction.

Wrench Tool C1977 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 C1977

A common cause of code C1977 is the failure of Cooling Fan Rationality Check Malfunction, but there are several other possible causes as well, such as ;

C1977 code for all cars

You can view according C1977 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C1977 Facel Vega Facellia +C1977 Riley Kestrel +C1977 Renault Modus +C1977 Chrysler Cordoba +C1977 Chevrolet Evanda

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

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