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CONNECT PLUG
TO DISCONNECTED
HONDA CONNECTOR
PURPLE 'FLYING' LEADS TO
THE PCM IGNITION LINES
Figure 9-3. Honda IST – ignition line connection.
9-4
9.2 Honda IST ignition line connection
NOTICE!
The Honda EST gateway harness does not have ignition/wake-up lines for
the PCM. Ignition lines for the PCM should connect to the Honda ignition
panel via the CM20040 ignition wye harness.
CM20040
WYE HARNESS
CONNECT THE TWO
9.3 EST gateway installation
The EST gateway is an electronic interface device that connects the Optimus
control system to the OEM shift and throttle control system. It passes shift
and throttle commands from the joystick to the engine manufacturer's EST
system, and monitors station selection, network status and ignition state.
Location
A gateway (EG1850) is required at each control station that is equipped
with a joystick. It should be installed underneath the dash and as close as
practical to the control head. Before installation, test fit with harness
CM20039 to ensure that the harness connects to the remote control and
the gateway without strain.
Installation
Install the gateway with the strain relief plate and screws as shown in figure
9-4. The preferred orientation is vertical with connections facing down,
but it may also be installed horizontally. Avoid mounting the gateway with
the connections facing upwards.
Use cable ties to secure the harness cables to the strain relief plate as
shown in figure 9-5.
6 PIN GREY CONNECTOR
HONDA
IGNITION/KEY
PANEL
ON
ST AR T
EN
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