U2120 Marcos 3-litre OBD Code

OBD/2 U2120 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.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

U2120 Marcos 3-litre Error Code Repair Process :

The scent may U2120 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such U2120, so if the inside of your car passengers seat belt buckle switch resistance out of range as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Marcos 3-litre U2120 OBD2 Code

A common cause of code U2120 is the failure of Passengers Seat Belt Buckle Switch Resistance out of Range, 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
1Camshaft Position Sensor circuit poor electrical connection
Faulty oil control valve (OCV)
Fuel Injectors circuit poor electrical connection

U2120 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

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

About Us | Contact | Privacy

U2120 Marcos 3-litre OBD Code

U2120 Marcos 3-litre Error Code Repair Process :

Common Causes of Marcos 3-litre U2120 OBD2 Code

U2120 code for other Marcos cars