Fifth Wheel Jaw Monitoring - International Trucks ProStar+ Series Operator's Manual

Fifth Wheel Jaw Monitoring

The optional fifth wheel jaw monitoring feature is an
electronic jaw lock indicator system with two indicators
to show fifth wheel jaw status to the driver.
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One indicator, JAW LOCK, has a green that illuminates
when the trailer is fully locked onto the fifth wheel.
The other indicator, JAW UNLOCK, has a red that
illuminates when the trailer is not fully locked onto
the fifth wheel. If neither indicator is illuminated, this
indicates the jaw is unlocked and the tractor is not
connected to a trailer and is in Bobtail mode. If the
JAW UNLOCK indicator is flashing, this indicates the jaw is
locked and the trailer is not connected to the fifth wheel. If both
indicators are flashing, this indicates a system error or failure.
Both indicators will illuminate briefly when the key is turned to
the ON position as a check of function.
Operation
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