Entertainment System Diagnosis

DTC B1982 Source/Battery Voltage High:

CIRCUIT DESCRIPTION
Battery positive voltage (B+) is supplied via CKT 2240 (ORN) to the radio (IRC) at terminal F1 The radio monitors this voltage to determine if it is within a valid operating range.

CONDITIONS FOR SETTING DTC
The battery positive voltage (B+) rises above 15.5 volts for more than approximately 1.2 seconds.

ACTION TAKEN WHEN THE DTC SETS
^ The radio stores a DTC B1982 in its memory.
^ The radio does not respond to inputs when the voltage is greater than 15.5 volts.
^ No driver warning message is displayed for this DTC.

CONDITIONS FOR CLEARING DTC
The battery positive voltage (B+) level falls below 15 volts for approximately 1.2 seconds.

DIAGNOSTIC AIDS
This DTC may set when the vehicle is placed on a battery charger on fast or boost charge for a long period of time.