C0747 Mercedes X Class OBD Code

OBD/2 C0747 error code description and symptoms.

HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens/shorts and excessive current draw.
The test fails when current draw exceeds a calibrated limit and/or an open or short is detected. Short to VPWR in harness or HO2S. Water in harness connector. Open VPWR circuit. Open GND circuit. Low battery voltage. Corrosion or poor mating terminals and wiring Damaged HO2S heater. Damaged PCM.

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.

C0747 Mercedes X Class Error Code Repair Process :

If your passenger door lock switch circuit shorted to ground 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 C0747 and engine control unit are in charge of monitoring a bunch of different passenger door lock switch circuit shorted to ground, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mercedes X Class C0747 OBD2 Code

A common cause of code C0747 is the failure of Passenger Door Lock Switch Circuit Shorted to Ground, but there are several other possible causes as well, such as ;

Exhaust tube
Clogged or faulty fuel injector (s)
Fuel injectors may be faulty
Faulty TCM or TCM programming

C0747 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

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

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C0747 Mercedes X Class OBD Code

C0747 Mercedes X Class Error Code Repair Process :

Common Causes of Mercedes X Class C0747 OBD2 Code

C0747 code for other Mercedes cars