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16-6
ELECTRICAL
QUARTER WINDOW CONTROL SWITCH BLOCK
DOOR WINDOW MASTER CONTROL SWITCH BLOCK
FLAT TO ROUND WIRE HARNESS CONNECTOR
IN LINE MOTOR WIRE HARNESS CONNECTOR
DOOR WINDOW MOTOR
1476
Fig. 16-9-Left Side Power Window Wiring - " A " 67 Styles
breaker. Refer to electrical introduction for spe-
cific locations.
RELAY
All styles - In addition to the circuit breaker, a re-
lay is used in the circuit. The relay prevents the
operation of the power windows until the ignition
CUT-OUT SWITCH
A cut-out switch (Cadillac styles only) installed
on the left front door arm rest, is designed to
temporarily by-pass the relay circuit so the win-
dows may be operated only from the master control
switch when the ignition is in the off position.
To perform this operation, the cut-out switch con-
trol button is held in the "EMERG" position while
the master control switch buttons are actuated.
When the cut-out button is released, the button will
return to the "LOCK" position.
The cut-out switch button should be set in the
"NORMAL" position when ignition switch is "ON"
to permit normal operation of power windows from
all switch locations. If the control button is left
in the "LOCK" position with the ignition switch on,
the windows will operate only from the master
control switch.
POWER WINDOW CIRCUIT
CHECKING PROCEDURES
Failures in a circuit are usually caused by short
circuits or open circuits. Open circuits are usually
caused by breaks in the wiring, faulty connection
or mechanical failure in a component such as a
switch or circuit breaker. Short
circuits
are
usually caused by wires from different components
of the circuit contacting one another or by a wire
or component grounding to the metal of the body
due to a screw through the wire, insulation cut
through by sharp metal edge, etc.
It may be necessary to use only one or all of the
procedures outlined to locate an electrical failure
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