General Information

Active Air Flap
U0101 Lost Communication With TCM - General Information

Component Location





Gerneral 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 sets DTC U0101 when AAF detects that there is no any signal from TCM through CAN communication line.

DTC Detecting Condition





Diagnostic Diagram










CAN Signal : high & low