B1377 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1377 – Oil Change Lamp Circuit Failure

 

B1377 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1377 Possible Causes

 

Faulty Oil Change Lamp,Oil Change Lamp harness is open or shorted,Oil Change Lamp circuit poor electrical connection,Faulty Powertrain Control Module (PCM)

 

B1377 Description

 

The Powertrain Control Module (PCM) monitors the Oil Change Lamp. The PCM sets the OBDII code when the Oil Change Lamp is not to factory specifications.