U3521 Chrysler Lhs OBD Code

OBD/2 U3521 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 U3521

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

U3521 Chrysler Lhs Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine U3521 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 variable cam timing solenoid #1 circuit malfunction 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 variable cam timing solenoid #1 circuit malfunction.

Common Causes of Chrysler Lhs U3521 OBD2 Code

A common cause of code U3521 is the failure of Variable Cam Timing Solenoid #1 Circuit Malfunction, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Faulty starter motor
Fuel filler cap remains open or fails to close
Incorrect Positive Crankcase Ventilation (PCV) hose connection

U3521 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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U3521 Chrysler Lhs OBD Code

U3521 Chrysler Lhs Error Code Repair Process :

Common Causes of Chrysler Lhs U3521 OBD2 Code

U3521 code for other Chrysler cars