2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 208
Vehicle speed controller is rejected
Service instruction
none
2D51 - P16A7 (DME)
2D51 - P16A7
Information saved in
DME
Fault code
2D51 - P16A7
Fault text
Monitoring, air path
Fault description
Control Module Self-Test, Hot Film Air Mass Meter
Monitoring
Condition for fault identification
Test condition:
Control module monitoring
Throttle valve not without current;
Air mass is implausible relative to injected fuel volume
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system >= 10 V
Condition for fault memory entry
4 sec.
Action in service
Check air and fuel path
If frequency is > 3 Replace DME
Fault effect and breakdown warning
Driver information
Warning light:
MIL OFF EML ON CC: Reduced power, engine
malfunction
RPM limited to 1300 rpm
Service instruction
none
2D51 - P16A8 (DME)
2D51 - P16A8
Information saved in
DME
Fault code
2D51 - P16A8
Fault text
Monitoring, air path
Fault description
Control Module Self-Test, Throttle Position Monitoring
Condition for fault identification
Test condition:
Control module monitoring
Throttle valve is not without current;
Throttle valve sensor fault not detected by standard
