General Information

Active Air Flap
U0100 Lost Communication With ECM/PCM \'A\' (C-CAN) - General Information

Component Location





General Description

AAF(Active Air Flap) have High and Low line in the CAN communication which receives each vehicle condition from EMS, FATC, TCU, MCU and LDC.
With this informations, AAF controls Motor properly.

DTC Description

AAF Actuator(Module) sets DTC U0100 when AAF detects that there is no signal from ECM(PCM).

DTC Detecting Condition





Diagnostic Diagram










CAN Signal : high & low