U3421 Aston Martin Vanquish OBD Code

OBD/2 U3421 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 U3421

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.

U3421 Aston Martin Vanquish Error Code Repair Process :

For turbo boost pressure low check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. U3421 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks turbo boost pressure low with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Aston Martin Vanquish U3421 OBD2 Code

A common cause of code U3421 is the failure of Turbo Boost Pressure Low, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Faulty front heated oxygen sensor
Improper ignition timing
Damaged VCT phaser

U3421 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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U3421 Aston Martin Vanquish OBD Code

U3421 Aston Martin Vanquish Error Code Repair Process :

Common Causes of Aston Martin Vanquish U3421 OBD2 Code

U3421 code for other Aston cars