U3132 Mercedes Cls 63 OBD Code

OBD/2 U3132 error code description and symptoms.

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

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.

U3132 Mercedes Cls 63 Error Code Repair Process :

For cooling fan 1 control circuit malfunction check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. U3132 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks cooling fan 1 control circuit malfunction with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Mercedes Cls 63 U3132 OBD2 Code

A common cause of code U3132 is the failure of Cooling Fan 1 Control Circuit Malfunction, but there are several other possible causes as well, such as ;

Dirty Oil
Faulty starter motor
Intake Valve Timing Control Solenoid Valve harness is open or shorted
Clogged or faulty fuel injector (s)

U3132 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.

About Us | Contact | Privacy

U3132 Mercedes Cls 63 OBD Code

U3132 Mercedes Cls 63 Error Code Repair Process :

Common Causes of Mercedes Cls 63 U3132 OBD2 Code

U3132 code for other Mercedes cars