freightliner cascadia Driver Manual page 22

Electrical System
02/20/2012
1. Circuit Breaker
Removal Tool
Fig. 3.5, Self-Resetting Circuit Breaker Removal
level I) are shut down first. Then loads designated as
house loads (priority level II) are shut down. If neces-
sary, basic loads (priority level III) are shut down last.
PLVD allows the driver to continue using critical
loads, while noncritical loads are temporarily unavail-
able. Calculations for disconnecting loads are based
on battery voltage, ignition switch status, and engine
rpm. Also, a time delay is implemented for the shut-
down and reactivation of loads to avoid unnecessary
cycling of loads when battery voltage is close to
shutdown thresholds.
One minute before the comfort loads or house loads
are shut down, the alarm in the instrument cluster
Key Switch Position
Off
Accessory
3.5
2
2. Self-Resetting Circuit
Breaker
Type of Loads Shut Down Under Specific Conditions
Engine On, Voltage less than
12.5 Volts
N/A
N/A
1
06/19/2007
Fig. 3.6, Cab Load Disconnect Switch, EPA07
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05/13/2009
Fig. 3.7, Cab Load Disconnect Switch, EPA10 and
beeps. No alarm sounds before basic loads are shut
down.
If the interior lights have been shut down by PLVD,
pressing one of the interior light switches (if
equipped) brings the interior lights back on.
See Table 3.1
specific conditions.
See Table 3.2
fort, house, and basic load status.
Engine Off, Voltage less than
12.3 Volts
Priority level I, II loads
Priority Level I loads
Newer
for the type of loads shut down under
for the loads that are designated com-
Engine Off, Voltage less than
12.1 Volts
Priority level I, II, and III loads
Priority level I, II loads
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