B1760

DTC B1760 CD Changer Not Responding:

CIRCUIT DESCRIPTION
The Integrated Radio Controller (IRC) and the CD changer communicate on the E&C data line. The IRC sets DTC B1760 when it detects a loss of E&C communications with the CD Changer. If the CD changer is not heard from, the IRC initiates communications with the CD changer to determine its integrity.

CONDITIONS FOR SETTING THE DTC
^ This algorithm shall execute when the radio transitions from the OFF to the ON mode.
^ DTC B1760 will set if the IRC detects a loss of E&C communication between the radio and the CD changer.

ACTION TAKEN WHEN THE DTC SETS
^ DTC B1760 is stored in the IRC memory.
^ No driver warning message will be displayed for this DTC.

CONDITIONS FOR CLEARING THE DTC
DTC B1760 will clear when the ignition switch is cycled.

DIAGNOSTIC AIDS
Refer to the diagnostic table.

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
2. This step checks circuit B20 for continuity.
4. This step replaces the CD changer.