2CFB - P1644

2020 BMW 128i Coupe (E82) L6-3.0L (N51) Diagnostic Trouble Codes ( DTC ): Service instruction

none

2CFB - P1644 (DME)

2CFB - P1644

Information saved in

DME

Fault code

2CFB - P1644

Fault text

Throttle-valve adaptation value

Fault description

Throttle Valve Adaptation Stop Relearning Lower Mechanical Stop (Bank 1)

Condition for fault identification

Test condition:

Terminal change and request for adaptation Terminal condition: Terminal 15 ON Voltage condition:

Voltage in onboard electrical system >= 10 V

Condition for fault memory entry

none

Action in service

Check: Sum of throttle valve voltages must equal 5 V,

Perform electrical check on wires to throttle valve sensors,

visual inspection of plug-in terminals (at components, wiring harness and DME),

Check to determine whether objects that could physically prevent the throttle valve from closing are present in the intake manifold or throttle valve,

Replace component

Fault effect and breakdown warning

Driver information

Warning light:

CC status report: Reduced engine performance!, MIL ON

EMB + rpm limit 1300 rpm