2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 207
Condition for fault identification
Test condition:
Control module monitoring
Throttle valve not without current;
Failure to comply with activation conditions for internal
vehicle speed controller
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system >= 10 V
Condition for fault memory entry
480 ms
Action in service
Check speed signal, brake light switch, main cruise control
switch
If frequency is >=3 Replace DME
Fault effect and breakdown warning
Driver information
Warning light:
MIL OFF EML OFF CC: Vehicle speed control
Vehicle speed controller is rejected
Service instruction
none
2D50 - P16B4 (DME)
2D50 - P16B4
Information saved in
DME
Fault code
2D50 - P16B4
Fault text
DME, internal fault: monitoring, cruise control
Fault description
Control Module Self-Test, DCC (Dynamic Cruise Control)
Monitoring
Condition for fault identification
Test condition:
Control module monitoring
Throttle valve not without current
ACC/DCC initialized;
Interface fails to detect implausible torque demand
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system >= 10 V
Condition for fault memory entry
480 ms
Action in service
Check CAN, ACC/DCC control module
If frequency is >=3 Replace DME
Fault effect and breakdown warning
Driver information
Warning light:
MIL OFF EML OFF CC: Vehicle speed control
