(DME) Condition For Fault ID - Checksum Error

CDBF - U1143

Information saved in
DME

Fault code
CDBF - U1143

Fault text
Throttle-valve actuator CAN message, bank 1

Fault description
Message Monitoring Throttle Actuator DPR Overwrite Error
(Bank 1)

Condition for fault identification
Test condition:
Checksum error > 5 (K_CAN_CHKSUM_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, EDR electronic throttle valve system
test,
2. Check fuse, plug and wiring harness at EDR1 and DME,
3. Replace EDR 1

Fault effect and breakdown warning
CC message
Engine speed limited
Reduced power

Driver information
Warning light:
MIL, EML, CC message, backup program

Service instruction
none