2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 196
Test condition:
Pedal-position sensor monitor
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system >= 10 V
Condition for fault memory entry
0.02 sec.
Action in service
1) Check fault memory for problem with throttle valve
and/or main relay, replace main relay as indicated
2) Check power-supply wire for short to ground (also
measure in PWG),
3) Replace DME
Fault effect and breakdown warning
Driver information
Warning light:
CC status report: Reduced engine power!
EML ON restricted PW gradient and PW limit via rpm
Service instruction
none
2D1F
2D1F - P2120
Information saved in
DME
Fault code
2D1F - P2120
Fault text
Accelerator-pedal module, pedal-position sensor
potentiometer, signal
Fault description
Throttle/Pedal Position Sensor/Switch 'D' Circuit
Condition for fault identification
Test condition:
Pedal-position sensor monitor
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system >= 10 V
Condition for fault memory entry
0.02 sec.
Action in service
1) Read out the two root faults from the control module's
fault memory
2) Process using prescribed test plan,
3) Check main relay and overall vehicle electrical system
voltage supply,
4) Replace DME
Fault effect and breakdown warning
Driver information
Warning light:
CC status report: Reduced engine power!
EML ON, MIL ON, PW = 0, fast idle when brake pedal is
