4790539 93zj secc 8s power windows

8/14/2019 4790539 93ZJ Secc 8S Power Windows

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POWER WINDOWS

DESCRIPTIONA perman ent magnet motor moves each power win-

d ow. E a ch m ot or r a i s es or l ow er s t h e g la s s w h e n

v ol t a ge i s s u p p li ed t o t h e m ot or . T h e d ir e ct i on t h e

m ot or t u r n s d e pe n d s o n t h e p ol a r it y of t h e s u p p ly

voltage. The control switches control the supply volt-

age polarity.

With ignition in RUN, voltage from the #13 fuse, 60

amp, in the PDC is a pplied t o the #26 circuit breaker,

3 0 a m p , i n t h e F u s e P a n e l . P o w e r t h e n g o e s t o t h e

master switch terminal 5 and to the passengers win-

dow switches.

When th e drivers window switch is m oved UP, the

contacts close a current path to:

terminal 4

the Left Hand front window motor

terminal 3

terminal 1 of the Left Hand front window switch toground.

The motor then moves the glass u p.

Current flows in a similar way when the UP contact

in one of the passengers window switches is closed.

Curr ent flow th rough t he pa ssengers window motors

m u s t g o t h r o u gh t h e d r iv er s a n d t h e p a s s en g er s

window switches before it reaches ground.

E a ch m ot or is p rot ect ed b y a b uilt -in cir cu it

breaker. If a window switch is held on too long with

the window obstructed or after the window is fully up

or d ow n , t h e ci r cu i t b r ea k e r op e n s t h e ci r cu i t . T h e

circuit br eaker resets aut omatically as it cools. Do not

allow frequent or consecutive resetting of the circuit

breaker to continue.

DIAGNOSIS (Fig. 1)For informat ion concerning wiring or connectors,

refer to Group 8W - Wiring Diagrams.

NO WINDOWS OPERATE

Measure voltage at power window feed connector

a t fu s e p a n e l. M et e r s h ou l d r e a d b a t t e r y v ol t a ge . I f

not, replace 60 amp fuse in Power Distribution Cen-

ter.

Tu r n k ey t o O F F a n d m e a su r e r e sis t a n ce fr om

g r ou n d l u g o n d r iv er s s id e k ick p a n e l t o g r ou n d .

M e t e r s h o u l d r e a d z e r o o h m s . I f n o t , r e p a i r o p e n t o

ground.

Remove Master Door Lock/Power Window Switch

assembly (refer to service procedures). Measure resis-

t a n c e a t B LK w ir e (t e r m in a l 1 ). M et e r s h ou l d r e a d

zero ohms. If not, repair open to ground.

Turn key to ON and measure voltage at terminal 5

a t L H s w it ch . M et e r s h ou l d r e a d b a t t e r y v ol t a ge . I f

not, repair open circuit to breaker.

Operate Window switch. If the windows move up

and down go to Switch Testing.

Perform Drivers Door Switch test. If switch passes

test, replace defective m otors.

ONE WINDOW OPERATES

R e m ov e d o or p a n el o f i n o pe ra t iv e w i n d o w,

p r o be h a r n e s s s i d e o f u n p l u g g e d m o t o r c o n n e c -

tor.

Measur e voltage at term inal 2 of connector, holding

s w it ch i n t h e D OW N p os it i on . M et e r s h ou l d r e a d

b a t t e r y v ol t a ge . I f n ot , r e p a ir op e n b a ck t o M a s t er

S w it ch . I f a d d it i on a l s w it ch i s i n ci r cu i t (n ot L H

motor), refer to Switch Testing.

M ea s u r e r e s is t a n ce a t t e r m in a l 1 of con n e ct or ,

holding switch in the DOWN position. Meter should

read zero ohms. Caution, maintain DOWN position

while m eter lead is att ached. If not, repair open back

t o M a s t er S w it ch . I f a d d it i on a l s w it ch i s i n ci r cu i t

(not LH motor), refer to Switch Testing. If both testsare OK, replace regulator.

WINDOW REGULATOR REPLACEMENT

FRONT DOOR REMOVAL

(1) Lower window ha lf way.

(2) Remove screw at top of trim panel near mirror

(Fig. 2).

(3) Remove screw from demister opening.

(4) Remove screw a nd door ha ndle cover.

(5) Remove screw from under armrest.

(6) Remove screw from bottom of han d h old in a rm-

rest.

CAUTION: The wiring harness to the door switches

is just long enough to allow installation. If trim panel

is pulled off by hand the switch may be pulled apart.

Use a door clip tool to prevent damaging the

switches.

(7 ) R e m ov e t h e t r i m p a n e l w it h a w id e f la t b la d e

tool (Fig. 3).

T o a i d i n r e m o v a l o f t h e t r i m p a n e l , s t a r t a t

t h e b o t t o m o f t h e p a n e l .

(8) Unplu g electrical conn ector from switches.(9) Loosen 2 nu ts h olding glass to window regulat or

(Fig. 4).

(10) Slide glass rearward to remove from nuts.

(11) Pull the glass to the full up position and tape

the glass to the door.

(1 2) U n p l u g t h e w ir e h a r n e s s con n e ct or fr om t h e

window r egulator.

(13) Remove 4 window regulator screws (Fig. 5).

(14) Loosen t he last 2 window track screws (Fig. 5).

(15) Remove th e window regulator.

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Fig. 1 Power Windows

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(6) Unplug electrical connector from switch.

(7) Remove screws h olding speaker.

(8) Pull speaker from door and unplug connector.

(9) Loosen 2 nu ts h olding glass t o window regulator

(Fig. 7).

(10) Slide glass forward to remove from nuts.

(11) Pull the glass to the full up position and tape

the glass to the door.

(1 2) U n p lu g t h e w ir e h a r n e s s con n e ct or fr om t h e

window regulator.

(13) Remove 4 window r egulator screws (Fig. 8).

(14) Loosen the last 2 window tr ack screws (Fig. 8).

(15) Remove th e window regulator.

INSTALLATION

(1) Place the regulator inside the door by sliding 2loose screws in slots in door.

(2) Install the remaining 4 screws.

(3) Tighten the 4 regulator screws to 12 Nm (105

in. lbs.) torque.

(4) Move the glass as far rearward into the chan nel

as possible and pushed down. Tighten the 2 window

track screws to 12 Nm (105 in. lbs.) torque.

(5) Attach the door glass by sliding the 2 nuts into

the slots on the regulator (Fig. 7). Tighten the door

glass nuts to 12 Nm (105 in. lbs.) torque.

(6) Connect th e wire ha rness connector to the regu-

lator.

(7) Install the speaker.

(8) Using 3M 08044 or 3M 08041 adhesive/sealant,

install the plastic water dam sheet.

(9) Place th e tr im pan el in th e installation position

and press in the nylon retainers.(10) Install the door panel at taching screws.

Fig. 7 Remove/Install Glass Attaching Screw

Fig. 8 Window Regulator Removal

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4790539 93zj secc 8s power windows

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