General Information

Telematics Unit
B2859 CDMA Modem Fail - General Information

Component Location





General Description

TMU can get a phone call from Call Center. To communicate with Call center, TMU should support CDMA (Code Division Multiple Access) functionality. CDMA is a channel access method utilized by various radio communication technologies. If CDMA modem is fail, no connection with call center would be made.






DTC Description

The B2859 is SET when internal communication between main CPU with Modem chip.

DTC Detecting Condition





Diagnostic Circuit Diagram