U1312 Mercedes-benz Slr Class OBD Code

OBD/2 U1312 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.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

U1312 Mercedes-benz Slr Class Error Code Repair Process :

The rule of U1312 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of blend door failure. Likewise, overriding the OBD U1312 error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Common Causes of Mercedes-benz Slr Class U1312 OBD2 Code

A common cause of code U1312 is the failure of Blend Door Failure, but there are several other possible causes as well, such as ;

Dirty Oil
Faulty starter motor
Incorrect fuel filler cap used
Fuel injectors harness is open or shorted

U1312 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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U1312 Mercedes-benz Slr Class OBD Code

U1312 Mercedes-benz Slr Class Error Code Repair Process :

Common Causes of Mercedes-benz Slr Class U1312 OBD2 Code

U1312 code for other Mercedes-benz cars