U20E5 Mazda Cx-7 OBD Code

OBD/2 U20E5 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 U20E5

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

U20E5 Mazda Cx-7 Error Code Repair Process :

If your column reach feedback potentiometer circuit short to ground 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 U20E5 and engine control unit are in charge of monitoring a bunch of different column reach feedback potentiometer circuit short to ground, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mazda Cx-7 U20E5 OBD2 Code

A common cause of code U20E5 is the failure of Column Reach Feedback Potentiometer Circuit Short to Ground, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Clogged or faulty fuel injector (s)
Incorrect fuel filler cap used
Open VPWR circuit

U20E5 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

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

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U20E5 Mazda Cx-7 OBD Code

U20E5 Mazda Cx-7 Error Code Repair Process :

Common Causes of Mazda Cx-7 U20E5 OBD2 Code

U20E5 code for other Mazda cars