U115A

CDC3 - U115A

Information saved in
DME

Fault code
CDC3 - U115A

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
Alive error >
K_CAN_ALIVE_ERR_Max

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
Check Control message / transmission emergency-run
program / power reduction / engine speed limitation display

Driver information
Warning light:
29-Engine malfunction

Service instruction
none