battery CHEVROLET DYNASTY 1993 Service Manual

CONDITION: NO SEAT TRACK FRONT UP OR DOWN MOVEMENT IN THE RECALL MODE,SEAT TRACK FRONT WILL MOVE UP ORDOWN BY MANUAL SWITCH ACTUATIONWITHOUT STALL DETECTION.
PROCEDURE
(1) Check for a voltage at pin 2 of the control mod-
ule 21-way connector. Less than 5 volts for the seat
track front full up and more than 0 volts when fully
down. (2) Check for a voltage at pin 2 of the natural
5-way connector. Same as in step (1) above. With the
ground lead of the meter at pin 4 of this connector. If
the voltage reading is at 0 volts, disconnect the
5-way natural connector and check for a short to
ground in the harness. If no short is found, reconnect
the connector and continue the procedure. (3) Check for the voltage to vary as noted above, if
it does not vary as the seat track front is moved up
and down, the sensing potentiometer is defective. Re-
place the seat motor package assembly. After re-
placement of the seat motor package, reconnect all
wiring connectors and reinstall seat assembly in ve-
hicle. Operate the switches manually to cause maxi-
mum seat movement in all directions. Perform the
memory seat diagnostic self check so the control
module will learn the new soft limits of the assem-
bly.
CONDITION: NO SEAT TRACK REAR UP OR DOWN MOVEMENT IN THE RECALL MODE,SEAT TRACK REAR WILL MOVE UP OR DOWNBY MANUAL SWITCH ACTUATION WITHOUTSTALL DETECTION.
PROCEDURE
(1) Check for a voltage at pin 13 of the control
module 21-way connector. Less than 5 volts for the
seat track rear full up and more than 0 volts when
fully down. (2) Check for a voltage at pin 3 of the natural
5-way connector. Same as in step (1) above. The
ground lead connected to pin 4 of the 5-way connec-
tor. If the voltage reading is at 0 volts, disconnect
the 5-way natural connector and check for a short to
ground in the harness. If no short is found, reconnect
the connector and continue the procedure. (3) Check for the voltage to vary as noted above, if
it does not vary as the seat track rear is moved up
and down, the sensing potentiometer is defective. Re-
place the seat motor package assembly. After re-
placement of the seat motor package, reconnect all
wiring connectors and reinstall seat assembly in ve-
hicle. Operate the switches manually to cause maxi-
mum seat movement in all directions. Perform the
diagnostic self seat check so the control module will
learn the new soft limits of the assembly.
CONDITION: NO MOVEMENT OF THE SEAT,
SEAT WILL MOVE IN THE RECALL MODEONLY.
PROCEDURE
(1) Check for battery voltage to terminal 3 of driv-
er's power seat switch. (2) Check for continuity of driver's power seat
switch. Refer to Memory Seat Switch Continuity
(Fig. 19). If switch is good, check for continuity be-
tween the driver's door switch and the 25-way con-
nector in the control module in the driver's seat
(Figs. 21 and 22).
Fig. 21 Driver's Door Switch to 25-Way Connector at the Seat Control Module Continuity
Fig. 22 Control Module and Seat Switch Pin Location
8R - 14 POWER SEATS Ä

(3) Use an ohmmeter to test the wiring between
the door switch and the control module in the driv-
er's seat. The circuits should be disconnected from
their components at each end. Repair the wiring as
required for open circuits, terminal push outs, or bad
crimps. If the circuits are good to the control module
but the function is still missing, replace the control
module.
CONDITION: NO MOVEMENT OF THE SEAT, RELAYS CAN BE HEARD CLICKING WHENTHE SEAT SWITCH IS ACTIVATED.
PROCEDURE
(1) Check for battery voltage and ground at the ap-
propriate pins of the control module 10-way connec-
tor (Fig. 23). If the proper results are not obtained,
replace the control module. If the circuits are correct,
then continue the procedure.
(2) Check for continuity of the motor circuits from
the control module 10-way connector to the left
power seat motor package (Fig. 24). (3) Repair the wiring as required for open circuits,
terminal push outs, or bad crimps. If the circuits are
good but the seat movement direction is still missing,
replace the seat motor package assembly. After re-
placement of the seat motor package, reconnect all wiring connectors and reinstall seat assembly in ve-
hicle. Operate the switches manually to cause maxi-
mum seat movement in all directions. Perform the
memory seat diagnostic self check so the control
module will learn the new soft limits of the assem-
bly.
CONDITION: NO MOVEMENT OF THE MEMORY MIRRORS WHEN THE POWERMIRROR SWITCH IS ACTUATED, MEMORYMIRRORS MOVE DURING RECALL ONLY.
PROCEDURE
(1) Check for battery voltage at pin 1 of the mem-
ory mirror switch 8-way connector in the driver's
door. This battery feed is through a diode package
that is located in the left cowl side area. A grounded
wire on the switch side of the diode would most
likely cause the diode package to open. Solder and
tape the connections if replacement is necessary. The
fuse is in cavity 13 of the fuse block. (2) Check for ground at pin 5 of the memory mir-
ror switch 8-way connector. Repair as needed. (3) Check for continuity of the memory mirror
switch. Refer to the Group 8T, Mirror Switch Test
Procedure and the Continuity.
Fig. 23 Control Module 10-Way Connector Voltage and Ground Test
Fig. 24 Control Module 10-Way Connector to PowerSeat Motor Connector Continuity
Ä POWER SEATS 8R - 15

(7) Check for resistance values in the left or right
mirror assembly as indicated by the diagnostic self
test fault locator. Connect an ohmmeter between the
mirror 8-way connector cavities as shown in the
chart (Fig. 29). Both left and right mirrors use the
same cavities. As the mirror face is moved manually
the resistance value will change between the values
given in the chart. If these results are not obtained,
replace the mirror assembly. (8) If the resistance values from procedure (5) can-
not be obtained and indicate a short to ground or
battery, use an ohmmeter to isolate the circuits and
components at fault. If the fault is in the wiring har-
ness, repair or replace the wiring harness as neces-
sary. If the fault is in the mirror, replace the mirror
assembly. (9) If after checking the rheostat circuits of an in-
dividual mirror and all circuits are correct then re-
place the control module. Perform the memory seat
diagnostic self check so the control module will learn
the new soft limits of the assembly.
POWER RECLINER MOTOR AND CABLE
REMOVAL
(1) Remove seat assembly from vehicle, following
procedure outlined under Seat Assembly Removal. (2) Remove seat outboard side shields to expose re-
cliner and cable (Fig. 30). (3) Remove cable housing clip from cushion frame.
(4) Remove cable housing clamp from the recliner
transmission housing, and remove drive cable. (5) Lay seat on its back on some clean surface.
(6) Remove four bolts, attaching the power seat
track to cushion frame. (7) Remove two motor attachment screws from
power seat track cross strap. (8) Disconnect recliner motor connectors.
Fig. 27 Sensing Rheostat ResistanceFig. 28 Sensing Rheostat Continuity
Fig. 29 Mirror Rheostat Resistance
Ä POWER SEATS 8R - 17

POWER WINDOWS
CONTENTS
page page
BENCH REPAIR OF REGULATOR AND MOTOR CONVENTIONAL REGULATORS .......... 5
GEAR AND PINION REPLACEMENT AND LUBRICATION ....................... 3
GENERAL INFORMATION .................. 1
MOTOR REPLACEMENT ................... 7
MOTOR REPLACEMENT CONVENTIONAL REGULATORS ....................... 3
MOTOR REPLACEMENTÐFLEX DRIVE REGULATORS ......................... 5 POWER WINDOW CABLE HOUSING/MOTOR RE-
PLACEMENTÐAC and AY BODIES ........ 7
QUARTER WINDOW MOTOR REPLACEMENTÐ AJ BODY ............................. 9
QUARTER WINDOW REPLACEMENTÐ AJ BODY ............................. 8
WINDOW LIFT MOTOR TEST .............. 1
WINDOW LIFT SWITCH TEST .............. 1
WIRING VOLTAGE TEST .................. 1
GENERAL INFORMATION
Front and rear door window lift motors are of the
permanent magnet type. A positive and negative bat-
tery connection to either of the two motor terminals
will cause the motor to rotate in one direction. Re-
versing current through these same two connections
will cause the motor to rotate in the opposite direc-
tion. Each individual motor is grounded through the
master switch by a black wire attached to the left
cowl panel. It is necessary that the window be free to slide up
and down in the glass channels or tubes and tracks.
If the window is not free to move up and down, the
window lift motor will not be able to move the glass. To determine if the glass is free is to disconnect the
regulator from the glass lift plate, and slide the win-
dow up and down by hand. For conventional arm-sec-
tor regulators, after the lift plate is detached from
the glass, it will slide off the regulator drive arm.
Flex-drive regulators may be detached the same way
or by removing one screw holding the flex rack to the
lift plate drive arm.
WIRING VOLTAGE TEST
The following wiring test determines whether or
not voltage is continuous through the body harness
to switch. After removing switch for testing purposes, care-
fully separate multiple terminal block on wiring har-
ness from switch body. With ignition switch ON
connect one lead of test light to black (or gray) wire
terminal and touch other test light lead to tan wire
terminal. If the test light comes on, the wiring cir-
cuit between the battery and switch is functional. If
light does not come on, check 30 amp main fuse (cir- cuit breaker) or for a broken wire. For wiring, spe-
cific connector type and location, refer to Group 8W,
Wiring Diagrams.
WINDOW LIFT SWITCH TEST
For switch testing, remove the switch from its
mounting. Using an ohmmeter, refer to Window
Switch Continuity Charts to determine if continuity
is correct. If the results are not obtained, replace the
switch. AC and AY Bodies are equipped with an Auto-
Down feature. This feature allows the operator to
lower the driver's window without having to hold the
switch in the down position. The Auto-Down feature
can be activated by pressing the down switch past
the first detent (Stop). To test the auto-down feature, operate the window
in the normal up and down mode. If the window
works correctly in the normal mode, but not in the
auto-down mode, replace the switch. To test the window switch (other than Auto-Down
mode), install a known good switch.
WINDOW LIFT MOTOR TEST
(1) Connect positive (+) lead from a test battery to
either of the two motor terminals. (2) Connect negative (-) lead from test battery to
remaining motor terminal. (3) The motor should now rotate in one direction to
either move window up or down. (a) If window happens to already be in full UP
position and motor is connected so as to rotate in
UP direction no movement will be observed. (b) Likewise, motor connected to DOWN direc-
tion rotation, no movement will be observed if win-
dow is already in full DOWN position.
Ä POWER WINDOWS 8S - 1

(4) Reverse battery leads (steps 1 and 2 above) and
window should now move. If window does not move,
remove motor. See below for motor removal from ve-
hicle. (5) If window moved completely up or down, motor
should be reversed one more time (reverse leads from
step 4) to complete a full window travel inspection.
GEAR AND PINION REPLACEMENT AND
LUBRICATION
The window glass and mechanism have been found
to move freely. The window motor works. But the
glass does not move up or down. The motor gear and
pinion will need to be replaced (Fig. 1).
When gear and pinion assembly is replaced in gear
box, lubrication of gear box, gear pinion and seal is
necessary. In the event there is no lubricant in gear box, fill
with MOPAR multi-mileage lubricant or equivalent.
Apply a liberal amount of lubricant to inside area of
seal marked A as illustrated in Fig. 1 and sealing
surface at center area of gear and pinion coupling.
Also lubricate center gear box shaft and worm gear.
MOTOR REPLACEMENT CONVENTIONAL
REGULATORS
The following procedure describes replacement of a
defective motor without removing window regulator
or detaching any window system components. This
method of motor replacement is not acceptable if any
of window system parts are loosened or removed from
door such as:
² Lift channels
² Up stops
² Tracks and pivot brackets
² Are already loose by deficiency
² Are to be loosened or removed from the door.
Then use method of repair where entire regulator
is removed from door (Fig. 2 through 9).
REMOVAL
(1) Raise window to full UP position and keep it
there at all times while replacing motor. If window is in
any position other than full UP and motor is separated
from spring loaded regulator, then regulator counterbal-
ance spring will tend to propel window upwards.
WARNING:PLACE A WINDOW BLOCK IN DOOR
THAT WILL POSITIVELY PREVENT WINDOW FROM
GOING DOWN. THIS ACTION WILL PREVENT IN-
JURY THAT COULD BE CAUSED BY INCORRECT
INSTALLATION OF COUNTERBALANCE SPRING
OR UPWARD MOVEMENT OF THE WINDOW.
(2) Disconnect wiring connector from motor which
is located about eleven inches from motor. (3) Remove three mounting screws that hold motor
gearbox to regulator. Remove third screw that se-
cures motor tie-down bracket to inner panel if so
equipped. There are three holes in inner panel which
provide access to three mounting screws that secure
gearbox to regulator (Fig. 2).
Fig. 1 Motor Lubrication
Fig. 2 Electric Motor MountingÐConventional Regulators
Fig. 3 Front Door Power WindowÐAA Body
Ä POWER WINDOWS 8S - 3

(b) Manually lift the window upward with the
unriveted flex drive electric regulator still attached
until the screw can be removed. If more access is
needed, remove the two screws that hold the
T-track to the motor gearbox. This will allow re-
moval of the motor from the T-track.
(5) Remove two screws that fasten the motor gear-
box to the metal T-track. (6) Perform bench test.
BENCH TEST
(1) Connect positive (+) lead from test battery to
either of the two motor terminals. (2) Connect negative (-) lead from test battery to
remaining motor terminal. (3) The motor will now rotate in one direction.
(4) Reverse the battery leads and the motor should
now rotate in the opposite direction. (5) If the motor does not rotate in both directions,
replace the motor.
INSTALLATION
(1) Install new motor on T-track using No. 8-32 X
1/2 screws tighten to 4 N Im (40 in. lbs.) torque.
(2) Feed top of T- track into access hole and point
and rotate it towards the hinge pillar until regulator
motor is approximately horizontal. Then rotate regu-
lator in the opposite direction about a 1/4 turn and
line up bracket tab to inner panel slot. (3) Fasten regulator with the rivet sequence shown
in (Figs. 10 and 11). (4) Actuate the motor until the flex rack is visible
within the access slot. Attach the window and drive arm assembly to the flex rack with the screws.
Tighten screws to 4 N Im (40 in. lbs.) torque.
POWER WINDOW CABLE HOUSING/MOTOR
REPLACEMENTÐAC and AY Bodies
WARNING: REMOVAL OF THE WINDOW LIFT MO-
TOR FROM THE REGULATOR WILL CAUSE THE
ASSIST SPRING TO UNWIND RAPIDLY WITH THE
POTENTIAL OF CAUSING PHYSICAL INJURY. IF
THE WINDOW LIFT MOTOR REQUIRES REPLACE-
MENT, SEE REGULATOR REPLACE CABLE AND
DRUM IN THIS GROUP OF THIS MANUAL.
(1) Remove front door trim panel. Refer to group
23, Body. (2) Disconnect window lift plate from glass (Fig.
15).
(3) Disconnect window track from door.
(4) Disconnect window lift motor and drive cables.
(5) Disconnect electrical connections.
(6) Carefully remove window track, cables and lift
motor assembly from door. (7) For installation reverse above procedures.
MOTOR REPLACEMENT
(1) Refer to Front Door Window Regulator for re-
moval. (2) The door glass must be in the down position.
(3) Tape glass to door frame to hold glass in the up
position. (4) If the window is not in the full up position, re-
move only the motor from the door. (5) Remove nuts from motor and cable housing
(Fig. 16). (6) Make sure motor is facing you before separat-
ing motor from housing. (7) Using a flat tool slowly separate motor from
housing, making sure the cable drum under the mo-
tor stays in cable housing. When motor is fully sep-
arated the assist spring will be completely unwound
(Fig. 17). (8) Remove assist spring by releasing the tabs on
the opposite sides of the spring, do not remove spring
from its case (Fig. 18).
Fig. 14 Rear Door Power WindowÐAP Body
ART: 928s-3; SIZE (1) = 1-3/4h x 3-1/2w
Fig. 15 Cable and Housing/Motor
Ä POWER WINDOWS 8S - 7

POWER MIRRORS
CONTENTS
page page
AUTOMATIC DAY/NIGHT INSIDE MIRROR .... 7
AUTOMATIC DAY/NIGHT INSIDE MIRROR WITH ULTRALIGHT HEADLAMP CONTROL ....... 7
GENERAL INFORMATION .................. 1
HEATED MIRROR ........................ 2
INSIDE MIRROR/READING LAMPS BULB/LENS REPLACEMENT ........................ 6
INSIDE MIRROR/READING LAMPS REPLACEMENT ........................ 6
MIRROR ASSEMBLY REPLACEMENTÐAA BODY.5
MIRROR ASSEMBLY REPLACEMENTÐ AC AND AY BODIES .................... 5
MIRROR ASSEMBLY REPLACEMENTÐAG BODY.5
MIRROR ASSEMBLY REPLACEMENTÐAJ BODY.5
MIRROR ASSEMBLY REPLACEMENTÐAP BODY.5
MIRROR MOTOR TEST PROCEDURE ........ 2
MIRROR SWITCH REPLACEMENTÐAA BODY . 3
MIRROR SWITCH REPLACEMENTÐAC AND AY BODIES .............................. 4
MIRROR SWITCH REPLACEMENTÐAG AND AJ BODIES .............................. 3
MIRROR SWITCH REPLACEMENTÐAP BODY . 4
MIRROR SWITCH TEST PROCEDURE ....... 2
TEST PROCEDURES ...................... 2
GENERAL INFORMATION
Electrically operated power mirrors are available
on all car lines. The mirrors are controlled by a sin-
gle switch assembly located either on the driver's
door trim panel or on the center console. There are three types of switches currently used,
each use s a L (left) R (right) for mirror selection (Fig.
1). Type I, which uses a rocker for mirror selection
and four buttons for mirror movement direction.
Type II, uses a toggle switch which is rotated clock-
wise for the Right mirror or counterclockwise for the
Left mirror selection, and moved UP, DOWN, LEFT,
or RIGHT for mirror movement direction. Type III, uses a paddle knob which is moved Left or Right for
mirror selection and four buttons for mirror move-
ment direction.
The motors which operate the mirrors are part of
the mirror assembly and cannot be replaced sepa-
rately. All vehicles are equipped with an Ignition-Off
Draw Connector which is used when the vehicles are
originally shipped from the factory. This connector,
which is located near the battery, helps to prevent
battery discharge during storage. For specific connec-
tor type and location, refer Group 8W, Wiring Dia-
grams.
Fig. 1 Power Mirror Switches
Ä POWER MIRRORS 8T - 1

AUTOMATIC DAY/NIGHT INSIDE MIRROR
Operational test:
² Turn ignition switch to the ON position with the
vehicle in park (Fig. 21).
² Place mirror switch in the high position.
² Cover the forward facing sensor with dark cloth to
keep out any ambient light.
² Shine a light into the rear facing sensor, watch to
see if the mirror darkens. With the mirror darkened, place the vehicle in re-
verse, the mirror should return to its normal condi-
tion. If the above conditions are met the mirror is oper-
ating properly.
² If not test voltage.
Test three way connector harness. Refer to Fig. 21. (1) Pin 1 Ignition Switch in run position, should
have battery voltage. (2) Pin 2 Should have continuity to Ground.
(3) Pin 3 When the transmission is in reverse,
should have battery voltage. (4) If test is OK replace Mirror.
(5) If not refer, to Wiring Diagrams manual to test
the circuits.
AUTOMATIC DAY/NIGHT INSIDE MIRROR WITH
ULTRALIGHT HEADLAMP CONTROL
CAUTION:When JUMP STARTING the vehicle, be-
fore cranking engine turn ignition ON and turn OFF
the Automatic Headlamp Control.
The mirror automatically reduces the amount of
headlamp glare from rear approaching traffic and
provides automatic headlamp control (Fig. 22).
SELF DIAGNOSTIC MODEÐOPERATIONAL TEST:
(1) Place shift selector in park (P) or Neutral (N)
position. With ignition OFF, press and hold AUTO
MIRROR and AUTO LAMP (headlamp) buttons, turn
ignition switch ON. When LED indicators start
flashing, release buttons. (a) The button LED indicators should flash for
about five seconds.
² AUTO MIRROR
² DARK
² AUTO LAMP
(b) If they continue to flash much longer than
five seconds, the mirror assembly is defective.
Fig. 20 Header Mirror/Reading Lamps
Fig. 21 Automatic Day / Night Mirror
Fig. 22 Automatic Day / Night Mirror with Ultralight Headlamp Control
Ä POWER MIRRORS 8T - 7

(2) The headlamps and parking lamps should turn
ON for about five seconds.
² AUTO MIRROR LED
² DARK LED
² AUTO LAMP LED
² The LED indicators blink for about 5 seconds.
² If the three indicators continue to blink consider-
ably longer than 5 seconds, then the mirror assembly
is defective. (3) The mirror should change to dim state.(a) Place shift selector in reverse (R), with igni-
tion switch ON:
² AUTO MIRROR LED indicator ON
² DARK LED indicator flashing
² Lasting about 15 seconds
(b) The mirror should slowly change to bright
state. (c) If the ignition is not turned OFF within the
15 second time period, the mirror will reset to its
previous setting.
The previous conditions are OK, the mirror is op-
erating properly. If not OK, continue with voltage tests below.
VOLTAGE TEST
To test for voltage insert voltmeter probe into wire
end of connector to contact terminal. Pin 1 ignition voltage (a) Ignition switch OFF, zero volts.
(b) Ignition switch ON, battery voltage.
Pin 2 battery voltage (a) Battery voltage at all times.
(b) No voltage, check 15 amp. fuse.
Pin 3 Ground (a) Continuity to ground.
(b) No voltage
Pin 4 Reverse over-ride (a) Ignition OFF, zero voltage.
(b) Ignition ON shift selector in Reverse (R), bat-
tery voltage. (c) Ignition ON shift selector in any position
other than Reverse (R), zero voltage.
Pin 5 Headlamp relay (a) Battery voltage at all times from headlamp
relay. (b) No battery voltage, test headlamp relay.
Pin 6 Park lamp relay (a) Ignition switch ON, battery voltage feed from
park lamp relay. (b) Ignition switch OFF, zero voltage.
(c) Ignition ON, No battery voltage test park
lamp relay.
If Voltage Test are OK, replace mirror assembly.
If not OK, refer to Wiring Diagrams manual.
8T - 8 POWER MIRRORS Ä

HEADLAMPS LEFT ON
To test the headlamps left on function, turn head-
lamps on with drivers door open. Chime should
sound until headlamps are turned off or drivers door
is closed.
KEY LEFT IN IGNITION
To test the key left in ignition function, insert key
into the ignition and open drivers door. Chime
should sound until key is removed from ignition or
drivers door is closed.
CHIME SYSTEM DIAGNOSISÐAA AND AP BODIES
WARNING: ON VEHICLES EQUIPPED WITH AN AIR
BAG REFER TO THE AIR BAG PORTION OF THIS SECTION FOR STEERING WHEEL OR SWITCH RE-
MOVAL AND INSTALLATION PROCEDURES.
CONDITION: NO TONE WHEN IGNITION
SWITCH IS TURNED ON AND DRIVERS SEATBELT OR AUTOMATIC SHOULDER HARNESSIS UNBUCKLED
PROCEDURE
(1) Check seat belt buckle switch (drivers seat) or
rotary switch in automatic shoulder harness retrac-
tor for a ground when unbuckled. (2) Check for battery feed at terminal 6 and igni-
tion feed at terminal 4 of chime module (Fig. 4 and
5).
Fig. 3 Seat Belt Warning System Diagnosis
Fig. 4 Chime Module Terminal IdentificationFig. 2 Buzzer System Wiring Schematic
8U - 2 CHIME WARNING/REMINDER SYSTEM Ä