2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 51
DME master relay, shift delay
Fault description
Main Relay Switching Delay
Condition for fault identification
Test condition:
none
Terminal condition: none
Voltage condition:
none
Condition for fault memory entry
none
Action in service
none
Fault effect and breakdown warning
Driver information
Warning light:
none
Service instruction
none
2AC6 - P1540 (DME)
2AC6 - P1540
Information saved in
DME
Fault code
2AC6 - P1540
Fault text
Button, Dynamic Driving Control (SPORT button), signal
Fault description
Driving Dynamics Control Switch High Input
Condition for fault identification
Test condition:
SPORT switch monitoring
only with CAN -11 network
Terminal condition: Terminal 15 ON
Voltage condition:
none
Condition for fault memory entry
none
Action in service
1) Electrical check on switch wire and power wires
2) Visual inspection of plug-in connections (on component
and DME ends)
3) Switch replacement
Fault effect and breakdown warning
