P1796 Mercedes Cla 180 OBD Code

OBD/2 P1796 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.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

P1796 Mercedes Cla 180 Error Code Repair Process :

For p1796 kick down switch 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. P1796 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 p1796 kick down switch circuit malfunction with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Mercedes Cla 180 P1796 OBD2 Code

A common cause of code P1796 is the failure of P1796 Kick Down Switch Circuit Malfunction, but there are several other possible causes as well, such as ;

Exhaust tube
Failures of clutch motion/travel sensors.
Fuel injectors harness is open or shorted
Faulty Variable Camshaft Timing (VCT) position solenoid

P1796 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

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

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P1796 Mercedes Cla 180 OBD Code

P1796 Mercedes Cla 180 Error Code Repair Process :

Common Causes of Mercedes Cla 180 P1796 OBD2 Code

P1796 code for other Mercedes cars