B146B Code: Meaning, Causes, and Symptoms | OBD2 Codes

B146B – Channel 3 Audio Speaker Output Circuit Low

 

B146B Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B146B Possible Causes

 

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

 

B146B 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.