U3873 Austin 14 OBD Code

OBD/2 U3873 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 U3873

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code U3873, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code U3873 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

U3873 Austin 14 Error Code Repair Process :

If your transmission transfer case clockwise shift relay coil open circuit 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 U3873 and engine control unit are in charge of monitoring a bunch of different transmission transfer case clockwise shift relay coil open circuit, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Austin 14 U3873 OBD2 Code

A common cause of code U3873 is the failure of Transmission Transfer Case Clockwise Shift Relay Coil Open Circuit, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Faulty Air fuel ratio (A/F) Sensor 1 Bank 1
1Camshaft Position Sensor circuit poor electrical connection
Intake air leaks

U3873 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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U3873 Austin 14 OBD Code

U3873 Austin 14 Error Code Repair Process :

Common Causes of Austin 14 U3873 OBD2 Code

U3873 code for other Austin cars