U2666 Mercury Mountaineer OBD Code

OBD/2 U2666 error code description and symptoms.

Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as U2666. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for U2666

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

U2666 Mercury Mountaineer Error Code Repair Process :

If your scp (j1850) invalid or missing data for engine sensors 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 U2666 and engine control unit are in charge of monitoring a bunch of different scp (j1850) invalid or missing data for engine sensors, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mercury Mountaineer U2666 OBD2 Code

A common cause of code U2666 is the failure of SCP (J1850) Invalid or Missing Data for Engine Sensors, but there are several other possible causes as well, such as ;

EVAP system hose leaking
1Camshaft Position Sensor circuit poor electrical connection
Camshaft advance mechanism binding (VCT unit)
Faulty Crankshaft Position Sensor (POS)

U2666 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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U2666 Mercury Mountaineer OBD Code

U2666 Mercury Mountaineer Error Code Repair Process :

Common Causes of Mercury Mountaineer U2666 OBD2 Code

U2666 code for other Mercury cars