2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 203
Throttle/Pedal Position Sensor/Switch 'D' / 'E' Voltage
Correlation
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) Check: Pedal-position sensor voltages [Pot voltage 2 =
(Pot voltage1)/2]2)
Check wires from DME to PWG,
3) Visual inspection of plug terminals (on components,
wiring harness and DME),
4) Replace PWG
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
2D28 - P1197 (DME)
2D28 - P1197
Information saved in
DME
Fault code
2D28 - P1197
Fault text
Differential-pressure sensor, intake manifold: signal
Fault description
Differential Pressure Sensor Intake Manifold High Input
(Bank 1)
Condition for fault identification
Test condition:
Monitor for differential pressure sensor
Engine start ended
Terminal condition: Terminal 15, engine on
Voltage condition:
none
Condition for fault memory entry
0.5 sec.
Action in service
1) Visual inspection of plug-in terminals (at components and
DME)
2) Perform electrical check on sensor wire, power supply
and ground
3) Replace sensor
Fault effect and breakdown warning
