9.13
ELECTRICAL
ELECTRONIC THROTTLE
CONTROL (ETC) SWITCH
The Electronic Throttle Control (ETC) switch is designed to
close in the event where the throttle cable sticks or breaks.
During normal operation, the ETC switch contacts are open
(not touching). The contacts will close when slack is present in
the cable.
NOTE: The throttle cable must have the proper amount of
end-play adjustment. A cable that is too tight will cause ETC
interruption, resulting in false engine RPM limiting.
IGNITION SYSTEM TESTING
Whenever troubleshooting an electrical problem you should
first check all terminal connections to be sure they are clean
and tight. Also be sure that colors match when wires are
connected. Use the following pages as a guide for
troubleshooting. The resistance values are also given on the
specification pages.
Electronic Throttle Control
Open / Closed
Throttle
ETC Switch is OPEN.
Slack in Cable /
Throttle Stuck
ETC Switch is CLOSED
Electronic Throttle Control (ETC) Switch
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