2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 6
Warning light:
none
Service instruction
none
CDA1
CDA1 - U1120
Information saved in
DME
Fault code
CDA1 - U1120
Fault text
Message (steering wheel angle, C4)
Fault description
Lost Communication With Steering Wheel Angle
Condition for fault identification
Test condition:
Steering wheel angle message recognized at least once
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system > 10 V
Condition for fault memory entry
400 ms
Action in service
Check CAN link between DSC and DME
Fault effect and breakdown warning
Driver information
Warning light:
none
Service instruction
none
CDA2
CDA2 - U1121
Information saved in
DME
Fault code
CDA2 - U1121
Fault text
Message (power management, battery voltage, 3B4)
Fault description
Lost Communication With Power Management Battery
Voltage
Condition for fault identification
Test condition:
Vehicle version is E65
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system > 10 V
Condition for fault memory entry
