P0C91 Dodge T-rex OBD Code

OBD/2 P0C91 error code description and symptoms.

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 P0C91

Circuit High Input codes like P0C91 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

P0C91 Dodge T-rex Error Code Repair Process :

If your vehicle failed a P0C91 test and the P0C91 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses input shaft speed signal missing/faulted a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look input shaft speed signal missing/faulted: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

Common Causes of Dodge T-rex P0C91 OBD2 Code

A common cause of code P0C91 is the failure of Input shaft speed signal missing/faulted, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Faulty starter motor
Faulty select solenoid
Continuous oil flow to the VCT piston chamber

P0C91 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

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

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P0C91 Dodge T-rex OBD Code

P0C91 Dodge T-rex Error Code Repair Process :

Common Causes of Dodge T-rex P0C91 OBD2 Code

P0C91 code for other Dodge cars