2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 55
2ADB - U1168
Information saved in
DME
Fault code
2ADB - U1168
Fault text
EAC sensor, communication
Fault description
Message Monitoring Direct Ozone Reduction Catalyst
Temperature Sensor Check Sum Error
Condition for fault identification
Test condition:
EAC sensor must be installed, and the correct data set
(SULEV) must be programmed in the DME
Terminal condition: Terminal 15
Voltage condition:
Voltage in onboard electrical system > 9 V
Condition for fault memory entry
2.5 sec.
Action in service
1.) Check ground wire from DME to EAC sensor
2.) Check positive wire from DME to EAC sensor
3.) Check bus wire from DME to EAC sensor
4.) Replace sensor
Fault effect and breakdown warning
Driver information
Warning light:
MIL comes on after 2nd driving cycle
Service instruction
none
2ADF - P0506 (DME)
2ADF - P0506
Information saved in
DME
Fault code
2ADF - P0506
Fault text
Idle air control, engine speed
Fault description
Idle Air Control System RPM Lower Than Expected
Condition for fault identification
Test condition:
none
Terminal condition: none
Voltage condition:
none
Condition for fault memory entry
