U1137

CDBD - U1137

Information saved in
DME

Fault code
CDBD - U1137

Fault text
Idle actuator CAN message, bank 1

Fault description
Message Monitoring Idle-Speed Control Valve Alive Check
(Bank 1)

Condition for fault identification
Test condition:
Alive error > 5 (K_CAN_ALIVE_ERR_MAX)
Terminal condition: TERM87
Voltage condition:
Battery voltage > 6.8V (k_egas_can_ed_ub_min)

Condition for fault memory entry
50 ms

Action in service
1. Clear fault memory, LLS system test,
2. Check fuse, plug and wiring harness at LLS1, check SMG
ECU and DME,
3. Replace LLS1

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:
MIL, EML, CC message, backup program

Service instruction
none