U3477 Mercedes Cls 250 OBD Code

OBD/2 U3477 error code description and symptoms.

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.

Gear changes are accomplished by a command from the TCM to energize the clutch actuator to release the clutch; after which various actuators inside the transmission disengage the current gear, and depending on current operating conditions, engage the next higher or lower gear ratio. All of this happens much faster than a human driver could change gears, and in most applications, gear changes are as smooth and seamless as on any fully automatic transmission.

U3477 Mercedes Cls 250 Error Code Repair Process :

The scent may U3477 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such U3477, so if the inside of your car egr calibration high as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Mercedes Cls 250 U3477 OBD2 Code

A common cause of code U3477 is the failure of EGR Calibration High, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Camshaft advance mechanism binding (VCT unit)
Faulty Fuel injector
Faulty variable valve timing (VVT)

U3477 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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U3477 Mercedes Cls 250 OBD Code

U3477 Mercedes Cls 250 Error Code Repair Process :

Common Causes of Mercedes Cls 250 U3477 OBD2 Code

U3477 code for other Mercedes cars