C1612 Mercedes S 560 OBD Code

OBD/2 C1612 error code description and symptoms.

The Transmission Range Sensor (also referred to as the PRNDL input an/or neutral safety switch) tells the transmission control module (TCM) an the engine control module (PCM) that the transmission is in park, reverse, neutral, drive, low, 2nd, 3rd etc. It is attached directly to the manual valve of transmission, so when the shift lever is moved from park to drive, the Transmission Range Sensor communicates this critical information to the above mentioned vehicle control module systems.

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

C1612 Mercedes S 560 Error Code Repair Process :

If your scp (j1850) lack of acknowledgment for external access (doors) 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 C1612 and engine control unit are in charge of monitoring a bunch of different scp (j1850) lack of acknowledgment for external access (doors), and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mercedes S 560 C1612 OBD2 Code

A common cause of code C1612 is the failure of SCP (J1850) Lack of Acknowledgment for External Access (Doors), but there are several other possible causes as well, such as ;

Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Faulty front heated oxygen sensor
Camshaft Position Sensor harness is open or shorted
Faulty starter motor

C1612 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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C1612 Mercedes S 560 OBD Code

C1612 Mercedes S 560 Error Code Repair Process :

Common Causes of Mercedes S 560 C1612 OBD2 Code

C1612 code for other Mercedes cars