U115B

CDC3 - U115B

Information saved in
DME

Fault code
CDC3 - U115B

Fault text
SMG CAN message 3

Fault description


Condition for fault identification
Test condition:
Bus active
Terminal condition: Wakeup
Voltage condition:
max (ub, u_wakeup) <= K_SMG_CAN_ED_Plus_Min

Condition for fault memory entry
No new messages

Action in service
1. Read out DTCs from SMG ECU and then delete / 2. Read
out DTCs from DME ECU and then delete / 3. Use vehicle
tester to repair all active component errors (in DME ECU
and SMG ECU) / 4. If DTC is entered again: Use vehicle
tester to repair CAN error

Fault effect and breakdown warning
Engine may stall / either pressure on accelerator is required
to restart the engine or no restart is possible / Check Control
message / power reduction/ higher idle speed / engine speed
limited to 3500 rpm displayed / no shift execution (control
and display remain intact)

Driver information
Warning light:
29-Engine malfunction

Service instruction
none