Dodge ram truck 3500 1996 Service Manual page 526

8S - 2 POWER WINDOW SYSTEMS B R
DIAGNOSIS AND TESTING (Continued)
shake the glass in the door. Check that the glass can be
moved slightly from side to side, front to rear, and up and
down. Then check that the glass is not bound tight in the
tracks. If the glass is free, proceed with the diagnosis that
follows. If the glass is not free, refer to Group 23 - Body
Components for window glass service and adjustment pro­
cedures.
(1) Check the switch continuity as described in the
Power Window Switch diagnosis in this group. I f OK
and the left front window is inoperative, see the Power
Window Motor diagnosis' in this group. I f OK and the
inoperative window is other than the left front, go to
Step 2. I f not OK, replace the faulty switch.
(2) With the ignition switch in the On position,
check for battery voltage at the fused ignition switch
output circuit cavity of the switch connector. I f OK,
go to Step 3. I f not OK, repair the open circuit to the
fuseblock module as required.
(3) Refer to the circuit diagrams in 8W-60 - Power Win­
dows in Group 8W - Wiring Diagrams. Check the continu­
ity in each circuit between the inoperative power window
switch connector cavities and the corresponding left front
power window switch connector cavities. If OK, see the
Power Window Motor diagnosis in this group. If not OK,
repair the open circuit(s) as required.
NOTE: All individual power window switches
receive their ground feed through the left front
power window switch and connector.
CIRCUIT BREAKER
For circuit descriptions and diagrams, refer to 8W-60
- Power Windows in Group 8W - Wiring Diagrams.
(1) Locate the correct circuit breaker in the fuseblock
module. Pull out the circuit breaker slightly, but be sure
that the terminals still contact the terminals in the fuse-
block module.
(2) Connect the negative lead of a 12-volt DC volt­
meter to a good ground.
(3) With the voltmeter positive lead, check both
terminals of the circuit breaker for battery voltage.
If only one terminal has battery voltage, the circuit
breaker is faulty and must be replaced. I f neither ter­
minal has battery voltage, repair the open circuit
from the power distribution center as required.
POWER WINDOW SWITCH
For circuit descriptions and diagrams, refer to
8W-60 - Power Windows in Group 8W - Wiring Dia­
grams. Before you proceed with this diagnosis, con­
firm proper circuit breaker operation. See the Circuit
Breaker diagnosis in this group.
(1) Remove the switch from the door trim panel as
described in this group. Carefully separate the multiple
terminal block on the wiring harness from the switch body.
(2) Check the switch continuity in each position, as
shown in the charts (Fig. 1) or (Fig. 2). I f OK, see the
Power Window Motor diagnosis in this group. I f not
OK, replace the faulty switch.
VIEW S H O W N FROM BACK OF SWITCH
SWITCH
POSITION
CONTINUITY BETWEEN
OFF
PINS 1 & 2, PINS 2 & 3
PINS 3 & 4 , PINS 4 & 6
LEFT
i in
PINS 1 & 5 , PINS 2 & 3
PINS 3 & 4 , PINS 4 & 6
Ur
RIGHT
PINS 1 & 2 , PINS 2 & 4
PINS 3 & 5 , PINS 4 & 6
LEFT
PINS 1 & 2, PINS 2 & 3
PINS 3 & A, PINS 5 & 6
P U W N '—
RIGHT
PINS 1 & 2, PINS 2 & 3
PINS 3 & 6 , PINS 4 & 5
J958S-2
Fig. 1 Left Side Switch Continuity
V I E W S H O W N F R O M BACK OF SWITCH
SWITCH
POSITION
CONTINUITY
BETWEEN
OFF
PINS 1 & 4
PINS 2 & 3
UP
PINS 1 & 4
PINS 3 & 5
D O W N
PINS 2 & 3
PINS 1 & 5
J958S-1
Fig. 2 Right Side Switch Continuity