2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 118
1) Check engine-management fuses (5-fuse holder in E
module),
2) Visual inspection of throttle valve plug contacts and
electrical check on throttle valve motor wires,
3) Check throttle valve for stiction and replace component
as indicated
Fault effect and breakdown warning
Driver information
Warning light:
CC status report: WAL_1, reduced engine power!,
MILNone activation control via lv_err_tps_obd,
operation in emergency default mode if trigger point reached
otherwise EMB + engine speed governed to 1300 rpm
Service instruction
none
2CEE
2CEE - P1637
Information saved in
DME
Fault code
2CEE - P1637
Fault text
Throttle-valve actuator, sluggish movement
Fault description
Throttle Valve Position Control, Control Deviation (Bank 1)
Condition for fault identification
Test condition:
Throttle valve test
Engine must be running
Throttle valve adaptation must not be in progress
Throttle valve actuator must be under current
No emergency default mode operation
Terminal condition: Terminal 15 ON
Voltage condition:
none
Condition for fault memory entry
less than 1 sec.
Action in service
1) Check engine-management fuses (5-position fuse box in
E-module),
2) Visual exmaination of contacts on throttle valve plug,
3) Check throttle valve for stiction and replace component
as indicated
Fault effect and breakdown warning
Driver information
Warning light:
CC status report: WAL_1, reduced engine power!,
MILNone activation control via lv_err_tps_obd,
operation in emergency default mode if trigger point reached
otherwise EMB + engine speed governed to 1300 rpm
