Thursday, August 1, 2019

2CED - P1639

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



none









2CED



2CED - P1639







Information saved in



DME









Fault code



2CED - P1639









Fault text



Throttle-valve actuator, jamming continuously









Fault description



Throttle Valve Position Control Throttle Stuck Permanently (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



1 sec.









Action in service



Check engine-management fuses (5-fuse holder in E module),



Visual inspection of throttle valve plug contacts and electrical check on throttle valve motor wires,



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

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