U20U2 Mercury Mc4 OBD Code

OBD/2 U20U2 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.

On some transmissions, such as automated manual transmissions or automatic transmissions with manual mode, the GSP switch lets the TCM know whether or not the driver has selected automatic or manual function. On manual transmissions, the GSP switch informs the TCM which gear the driver is selecting, and may function as a neutral safety switch, depending on system design. The TCM also uses the gate select position switch to monitor transmission operation. For example, if the driver selects manual mode and selects 3rd gear on an automatic transmission, the TCM may monitor speed sensors to detect clutch and brake slippage.

U20U2 Mercury Mc4 Error Code Repair Process :

If your driver memory power switch indicator circuit short to battery 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 U20U2 and engine control unit are in charge of monitoring a bunch of different driver memory power switch indicator circuit short to battery, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mercury Mc4 U20U2 OBD2 Code

A common cause of code U20U2 is the failure of Driver Memory Power Switch Indicator Circuit Short to Battery, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Faulty Fuel injector
Damaged camshaft position (CMP) sensor
Fuel Injectors circuit poor electrical connection

U20U2 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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U20U2 Mercury Mc4 OBD Code

U20U2 Mercury Mc4 Error Code Repair Process :

Common Causes of Mercury Mc4 U20U2 OBD2 Code

U20U2 code for other Mercury cars