Electrical System - Peterbilt 348 2017 Operator's Manual

ELECTRICAL

Electrical System

WARNING!
Battery posts, terminals and related
accessories contain lead and lead
compounds, chemicals known to the
State of California to cause cancer
and reproductive harm. Wash hands
after handling.
CAUTION
Do not modify or improperly repair
the vehicles electrical system or
fuse panel. All electrical repairs
should be performed by an autho-
rized dealer. Improper repair or
modifications will void your warranty
and/or cause serious damage to
your vehicle.
(03/17)
Low Voltage Disconnect (LVD)
Purpose
The LVD may increase battery life
and prevent unnecessary jump
start conditions by ensuring that an
unattended load does not deplete
the battery charge to a level that will
prevent you from starting your vehicle.
Operation
The LVD will disconnect non-vital
battery loads when battery voltage
drops below 12.3V for 3 minutes and
the key switch is in the ACC or OFF
position. During the last 2 minutes the
LVD will emit a slow audible beep. 30
seconds before disconnecting loads
the alarm will change to a fast beep.
The battery voltage must come back
up above a certain voltage before the
LVD will reset.
Y53-6060-1C1
ELECTRICAL
See an authorized dealer if the LVD
fails to reconnect loads during normal
operation.
Circuits Disconnected By LVD
•
Cab Dome Lamps
•
Cab Accessories
•
Spare Battery A & B
NOTE
All LVD circuits are color-coded blue
on the central electrical panel cover
label.
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