Diagnostic Trouble Codes - CDU - Cornerpost Display Unit
Control Unit
SPN
FMI
Priority
Description
CDU
629
12
Service Alert
Control unit CDU has reset itself due to watchdog timer.
CDU
639
12
Service Alert
CAN Bus 1 message is not arriving on time or missing.
CDU
639
14
Service Alert
No CAN Bus messages are arriving.
CDU
200722
03
Service Alert
Cornerpost switch matrix shorted high.
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