C03 - Cornerpost Control Unit Diagnostic Trouble Codes
Control Unit
SPN
FMI
Pri.
Description
C03
628
12
1
Controller cannot exit boot block program. Disconnect effected control unit connectors. Wait 30 seconds. Reconnect connectors. Reprogram controller with latest software. Replace control unit if condition persists.
C03
630
11
1
EEPROM failed test at power up. Replace Cornerpost Control Unit if condition persists.