P20A4 Trouble Code

View P20A4 obd/2 error code description and symptoms. P20A4 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 P20A4

On some transmissions, such as automated manual transmissions or automatic transmissions with manual mode, the GSP switch lets the TCM know whether or not the driver has selected automatic or manual function. On manual transmissions, the GSP switch informs the TCM which gear the driver is selecting, and may function as a neutral safety switch, depending on system design. The TCM also uses the gate select position switch to monitor transmission operation. For example, if the driver selects manual mode and selects 3rd gear on an automatic transmission, the TCM may monitor speed sensors to detect clutch and brake slippage.

Difficulty Level (Expert)
Level
Repair Time (60 Min.)
Time
Cost Prediction : $ 75-90

P20A4 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P20A4 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 p20a4 reductant purge control valve stuck open 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 p20a4 reductant purge control valve stuck open.

Wrench Tool P20A4 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.

Common Causes of P20A4

A common cause of code P20A4 is the failure of P20A4 Reductant Purge Control Valve Stuck Open, but there are several other possible causes as well, such as ;

P20A4 code for all cars

You can view according P20A4 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P20A4 Fiat Seicento +P20A4 Healey Nash-healey +P20A4 Intermeccanica Indra +P20A4 Ford Puma +P20A4 Hyundai Creta

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