CDA7
2010-2020 BMW 128i Convertible (E88) L6-3.0L (N51) WWW.168MOTIVE.COM Page 10
CDA7 - U1129
Information saved in
DME
Fault code
CDA7 - U1129
Fault text
Message (status, reverse gear, 3B0)
Fault description
Lost Communication With Reverse Status
Condition for fault identification
Test condition:
'Reverse gear status' recognized at least once
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system > 10 V
Condition for fault memory entry
40 sec.
Action in service
1) With manual transmission: Check CAN link between
light module and DME.
2) With automatic/SMG: Check code entry in light module,
delete version in DME and re-initialize (Terminal 15 switch)
Fault effect and breakdown warning
Driver information
Warning light:
none
Service instruction
none
