B1267 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1267 – Instrument Panel System Communication Bus Malfunction Short To Ground

 

B1267 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1267 Possible Causes

 

Faulty Engine Control Module (ECM),Faulty Multi Display ECU,Faulty A/C ECU,Faulty Combination Meter ECU,The harness is open or shorted between ECU,ECU circuit poor electrical connection

 

B1267 Description

 

This Diagnostic Trouble Code (DTC) is output when +B (Battery) or GND (Ground) short occurs on instrument panel system communication bus (Engine Control Module, Multi Display, A/C ECU and Combination Meter ECU). If +B or GND short is detected on instrument panel system communication bus, separate it by bus cut relay in body ECU to prevent while communication buses failure.