B1275 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1275 – Headlight Switch OFF Position Circuit Malfunction

 

B1275 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1275 Possible Causes

 

Faulty Combination Headlight Switch,Combination Headlight Switch harness is open or shorted,Combination Headlight Switch circuit poor electrical connection,Faulty Multiplex Integrated Control Unit (MICU)

 

B1275 Description

 

The Multiplex Integrated Control Unit (MICU) monitors the Headlight Switch Position. The MICU sets the OBDII code when the Headlight Switch Position is not to factory specifications.