Theory Of Operation
NOTE:
There are two versions of the B140C-13 DTC test. In order to select the proper test you must know if the vehicle is equipped with an Amplifier. If the vehicle is equipped with an Amplifier use the B140C-13 PREMIUM test. If the vehicle is not equipped with an Amplifier use the B140C-13 BASE test.
The Right Rear Speaker (+) circuit and the Right Rear Speaker (-) circuit are outputs of the Radio. The Radio controls and monitors these circuits for a concern.
For a detailed description of the Audio System. Refer to DESCRIPTION .
For additional information regarding the operation of the Audio System. Refer to OPERATION .