Dodge RAM TRUCK 1500 1995 Service Manual page 515

8S - 2 POWER WINDOWS
B R
has battery voltage, circuit breaker is faulty and
must be replaced. If neither terminal has battery
voltage, repair circuit from ignition switch as re­
quired.
POWER WINDOW SWITCH
Before you proceed with this diagnosis, confirm
proper circuit breaker operation. See Circuit Breaker
diagnosis.
(1) Remove switch from door trim panel. See
Power Window Switch Remove/Install. Carefully sep­
arate multiple terminal block on wiring harness from
switch body.
(2) Check for continuity between connector cavity
for left switch pin 2 (Fig. 1) or connector cavities for
right switch pins 2 and 4 (Fig. 2) and a good ground.
There should be continuity. If OK, go to next step. If
not OK, repair ground circuit as required. Note that
right switch gets ground feed through the left switch.
(3) Turn ignition switch to ON position. Check for
battery voltage at connector cavity for switch pin 5
(Fig. 1 or 2). If OK, go to next step. If not OK, repair
wiring to circuit breaker as required.
(4) Test switch continuity. See Switch Continuity
charts (Fig. 1 or 2) to determine if continuity is cor­
rect in the OFF, UP and DOWN switch positions. If
OK, go to Power Window Motor diagnosis. If not OK,
replace the switch.
POWER WINDOW MOTOR
Before you proceed with this diagnosis, confirm
proper switch operation. See Power Window Switch
diagnosis.
VIEW S H O W N FROM BACK OF SWITCH
SWITCH
POSITION
CONTINUITY BETWEEN
OFF
PINS 1 & 2, PINS 2 & 3
PINS 3 & A, PINS 4 & 6
LEFT
i
in
PINS 1 & 5, PINS 2 & 3
PINS 3 & 4, PINS 4 & 6
U r
RIGHT
PINS 1 & 2, PINS 2 & 4
PINS 3 & 5, PINS 4 & 6
LEFT
n o \ A / i v i
PINS 1 & 2, PINS 2 & 3
PINS 3 & 4, PINS 5 & 6
U v J V V IN
RIGHT
PINS 1 & 2, PINS 2 & 3
PINS 3 & 6 , PINS 4 & 5
J958S-2
Fig. 1 Left Side Switch Continuity
o ®l
2
I
I 5
3
4
I ®
o
VIEW S H O W N FROM BACK OF SWITCH
SWITCH
POSITION
CONTINUITY
BETWEEN
OFF
PINS l & 4
PINS 2 & 3
UP
PINS I & 4
PINS 3 & 5
D O W N
PINS 2 & 3
PINS I & 5
J958S-1
Fig. 2 Right Side Switch Continuity
(1) Remove door trim panel as described in Power
Window Motor Remove/Install.
(2) Disconnect motor connector. Apply 12 volts
across the motor terminals to check its operation in
one direction. Reverse the polarity to check the oper­
ation in the other direction. Remember, if window is
in the full up or down position the motor will not op­
erate in that direction by design. If OK, repair wire
harness from the motor to the switch as required. If
not OK, replace the motor.
(3) If motor operates in both directions, check op­
eration through its complete up and down travel. If
not OK, refer to Group 23 - Body Components to
check window glass, tracks, and regulator for stick­
ing, binding or improper adjustment.