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ELECTRICAL
16-25
h. Trouble Shooting
CONDITION
C. The window will not operate
up or down from any of the
control switches.
1.
2.
3.
4.
CAUSE
Open or short circuit in cir-
cuit from power source
to
switches or motor.
Safety switch not connected or
poor ground.
Mechanical bind or failure in
tail
g a t e window regulator
mechanism.
Defective
tail g a t e
window
regulator motor.
1.
2.
3.
4.
5.
CORRECTION
Check
operation
of
circuit
breaker.
Check affected circuit for open
or short circuit.
Check connectors to s a f e t y
switch and motor for proper
engagement.
Check tail
gate
mechanical
parts for bind or failure.
Check operation of motor.
POWER SEATS
HORIZONTAL SEATS
Description
The seat adjusters for the bench-type and bucket-
type seat are actuated by a 12 volt series-wound
motor located near the front left side of the seat
bottom frame, and are energized through a control
switch installed in the seat side panel or in the
door arm rest. For typical wiring installations see
Figure 16-61 for bucket-type seats and Figures
16-62 and 16-63 for bench-type seats.
For circuit diagrams see Figures 16-64 and 16-65.
The horizontal seat circuit is protected by a cir-
cuit breaker (refer to Electrical Introduction for
specific location).
Oldsmobile styles only - In addition to the circuit
breaker a relay is used in the circuit which pre-
vents the operation of the seat until the ignition
switch is turned "on".
The trouble diagnosis chart will help locate typical
problems which may occur.
Trouble Shooting of Horizontal Seat Circuit
CONDITION
The seat motor does not operate
in either the forward or rearward
direction.
CAUSE
a. Open or short circuit in feed
harness.
b. Inoperative motor.
CORRECTION
a. Connect one test light lead to
feed terminal of switch block
and ground other tester lead
to body metal. If tester does
not light, there is an open or
short circuit between switch
and power source.
b. Check operation of seat con-
trol switch with jumper wire.
See " C h e c k i n g Door Win-
dow Control" f o r
s i m i l a r
operation.
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