User's Manual

Trigger module of VCI equipment has two purposes. This trigger module sends the trigger signal
to VCI main module when trouble occurrence. And trigger signal is sent to VCI by depressing the
trigger button with Flight Record mode. According to this trigger signal, the VCI module starts to
store the Flight Record Data. The VCI module receives ON/OFF signal from trigger module. In
other words, trigger module detects ignition switch position and then sends ON/OFF signal to VCI
module. Therefore the VCI module is turned ON/OFF automatically by turning the ignition switch
as driver’s intention. And VCI module finally turns on with the signal from trigger module when
turned ignition switch over the ACC stage. At this moment, VCI prepares for communication with
ECU. The other purpose of trigger module is also supplies DC power to VCI module connected to
the vehicle which isn’t applied for 16 pin(OBD II diagnosis connector) connector.
1. Installation of trigger module and cigar power cable
Cigar jack from trigger module and round shape connector with 6pins are each connected with cigar
connector on the vehicle and VCI module. Trigger module must be installed at the certain position to
avoid disturbing their drive and also be considered that data captures promptly and quickly by sending
the signal from trigger module.
[Figure 1. Installation of trigger module]
Installation of trigger module
and cigar power cable
H/W understanding for Hi-Diagnosis Module : A–01-004 (p.01)
User’s Manual