B3777 Mercedes X Class OBD Code

OBD/2 B3777 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.

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.

B3777 Mercedes X Class Error Code Repair Process :

For wiper washer rear pump relay circuit failure 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. B3777 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 wiper washer rear pump relay circuit failure with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Mercedes X Class B3777 OBD2 Code

A common cause of code B3777 is the failure of Wiper Washer Rear Pump Relay Circuit Failure, but there are several other possible causes as well, such as ;

Dirty Oil
Faulty Mass Air Flow (MAF) sensor
Faulty variable valve timing (VVT)
Faulty Intake Valve Timing Control Solenoid Valve

B3777 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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B3777 Mercedes X Class OBD Code

B3777 Mercedes X Class Error Code Repair Process :

Common Causes of Mercedes X Class B3777 OBD2 Code

B3777 code for other Mercedes cars