Ignition Switch
Note: Freightliner vehicles are offered with various chassis and body components. Because of the various options, the information contained in this chapter may not apply to every vehicle.
The ignition switch (see Fig. ) is located on the lower portion of the left-hand dash. The switch has four positions: OFF, ACCESSORY, ON, and START.
Fig. 1, Ignition Switch Positions
In the OFF position, the key slot is vertical. The key can be inserted and removed only in the OFF position.
The following functions are operable when the ignition switch is in the OFF position (regardless of whether the key is inserted):
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low-beam headlights
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taillights
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brake lights
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dome lights
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clearance lights
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turn signals
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hazard warning lights
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horn
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CB radio
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power windows
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cigarette lighter
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clock
Turn the key counterclockwise to reach the ACCESSORY position. In addition to all the functions that are operable with the ignition switch in the OFF position, the following functions are operable when the switch is in the ACCESSORY position:
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radio or stereo system
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mirror heat
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air dryer
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backup lights
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windshield fan(s)
Turn the key clockwise past the OFF position to reach the ON position. With the switch in the ON position, all electrical systems are operable and the instrument control unit (ICU3) runs through the ignition sequence. See Fig..
When the ignition switch is turned to the ON position, all electronic gauges complete a full sweep of their dials, the warning and indicator lamps illuminate, and the buzzer sounds for three seconds. Wait for the gauge sweep to complete before starting the engine.
Switching on the ignition and releasing the parking brakes automatically activates the daytime running lights, if equipped. The daytime running lights will operate until the parking brakes are applied or the headlights are turned on.
Note: Daytime running lights are standard on all vehicles domiciled in Canada.
Fig. 2, Ignition Sequence
Turn the key clockwise past the ON position to reach the START position and start the engine. Do not operate the starter longer than thirty seconds, and wait at least two minutes between starting attempts to allow the starter to cool. Release the key the moment the engine starts.