B1245

Diagnostic Chart:

Schematics:

CIRCUIT DESCRIPTION
The radio (IRC) and the compact disc (CD) player communicate on the E&C serial data line CKT 835 (DK GRN)

CONDITIONS FOR SETTING THE DIC
^ This test runs when the radio (IRC) transitions from the OFF to the ON mode.
^ The radio (IRC) sets DTC B1245 when the radio detects a loss of E&C serial data communication with the CD changer.

CONDITIONS FOR CLEARING THE DIC
When the radio (IRC) is able to communicate with the compact disc (CD) player, DTC B1245 changes to history.

DIAGNOSTIC AIDS
Inspect the COMFORT fuse in the rear compartment fuse block for an open.