OBD2 Codes

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B1447 CHEVROLET Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1447 CHEVROLET – Backup Power Source

 

B1447 CHEVROLET Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1447 CHEVROLET Possible Causes

 

Faulty Communication Interface Module (CIM),Communication Interface Module (CIM) harness is open or shorted,Communication Interface Module (CIM) circuit poor electrical connection

 

B1447 CHEVROLET Description

 

The Back-up Battery (BUB) provides voltage to the Communication Interface Module (CIM), to be able to successfully place a call in the event of a main battery disconnect during a collision event. The OBDII codes set when the detects no voltage from the back-up battery.

 

 

 

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