B146A Code: Meaning, Causes, and Symptoms | OBD2 Codes

B146A – Channel 3 Audio Speaker Output Circuit Performance


B146A Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B146A Possible Causes


Faulty Audio Amplifier,Audio Amplifier harness is open or shorted,Audio Amplifier circuit poor electrical connection


B146A Description


The standard equipment speaker system includes four full-range speakers. The two front speakers are mounted behind a removable bezel located on each outboard end of the lower instrument panel. With the premium speaker system, the standard front speakers are replace with an enclosure assembly that includes a 4 inch speaker and a 1 inch tweeter. The four rear speakers are mounted behind a grille located on each outboard end of the sport bar, above the rear seating area of the vehicle. This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel, the amplifier shall set a DTC after a maturity rate of four to six seconds.