C0738 Mercedes-benz W111 OBD Code

OBD/2 C0738 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.

To check for an open circuit, trace along the length of the transmission control circuit, checking for breaks in the wiring. Repair any broken wiring and make sure all connectors are fully seated and locked.Pay close attention to connectors, looking for corrosion, bent or broken pins, or moisture in the connector. Repair any connector issues even if they are not specifically part of the transmission control circuit as they may serve a function in providing power to the transmission control circuit.

C0738 Mercedes-benz W111 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine C0738 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If aux heater start counter overrun/system locked (same as below ?) so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the aux heater start counter overrun/system locked (same as below ?).

Common Causes of Mercedes-benz W111 C0738 OBD2 Code

A common cause of code C0738 is the failure of Aux Heater Start Counter Overrun/System Locked (same as below ?), 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
Dirty Oil
Improper ignition timing
EVAP system hose leaking

C0738 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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C0738 Mercedes-benz W111 OBD Code

C0738 Mercedes-benz W111 Error Code Repair Process :

Common Causes of Mercedes-benz W111 C0738 OBD2 Code

C0738 code for other Mercedes-benz cars