U3524 Trouble Code

View U3524 obd/2 error code description and symptoms. U3524 engine photo

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

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.

U3524 Error Code Repair Process :

If your variable cam timing solenoid b malfunction 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 U3524 and engine control unit are in charge of monitoring a bunch of different variable cam timing solenoid b malfunction, and if they get a reading that's a little out of whack, up pops the check engine light.

U3524 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.

Common Causes of U3524

A common cause of code U3524 is the failure of Variable Cam Timing Solenoid B Malfunction, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Clogged or faulty fuel injector (s)
Faulty Intake Valve Timing Control Solenoid Valve
Ignition coils harness is open or shorted

U3524 code for all cars

You can view according U3524 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+U3524 Innocenti 650

+U3524 Mercedes A 170

+U3524 Chrysler 180

+U3524 Renault Logan

+U3524 Mazda Mazda 2 Ii

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

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