B15F9 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B15F9 – UART Communication Malfunction

 

B15F9 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B15F9 Possible Causes

 

Faulty Multi-Media Module Receiver Assembly,Multi-Media Module Receiver Assembly harness is open or shorted,Multi-Media Module Receiver Assembly circuit poor electrical connection

 

B15F9 Description

 

The Diagnostic Trouble Code (DTC) is stored when a malfunction occurs in the Multi-Media Module Receiver Assembly. Open in UART communication line is detected based on radio receiver activation failure.