(DME) Condition For Fault Memory - Checksum Error

CDBD - U1138

Information saved in
DME

Fault code
CDBD - U1138

Fault text
Bank 1 idle actuator CAN message

Fault description


Condition for fault identification
Test condition:
none
Terminal condition: Terminal 87
Voltage condition:
ub > K_EGAS_CAN_ED_Plus_Min

Condition for fault memory entry
Checksum error > K_CAN_CHKurzschlussUM_ERR_Max

Action in service
1. Delete stored DTCs from error memory, idle actuator
system test
2. Program DME
3. Replace DME

Fault effect and breakdown warning
DSC lamp / CC message / engine speed limited to 5000 rpm
/ reduced power / engine start may be possible only with use
of accelerator pedal

Driver information
Warning light:
29-Engine malfunction

Service instruction
none