Page 1297 of 1681
Power Door Locks
Circuit Diagram
@*"
DR]VER'S000R LocKSWITCH
NATCN KEYCYLINDER SWITCH
L_____
ooon rocx xroe If7 l
VIKEY
DRIVER'SDOOR LOCKACTUATOR
E
UNDER.HOOO FUSEi RELAY BOX
N0.41 (1004) No.s4 (40A)
DFIVERS DOORKEY CYLJNOERSWITCH
WHT/GRN
FRONTPASSENGERSDOOR LOCKACTUATOR
T--=-l-4{il^
* LEFT REARDOOR LOCKACTUATOR
,@-
* RIGHT NEARDOOR LOCKACTUATOH
-4{.ill^
HATCH LOCKACTUATOR
T-:-lfl.|.{-
LTGRN
LT BLU
A
t--lt=JKEY
i
Atl
T-tl-lKEYBLK
I
G503
.LK BLKll
tlAA
:-l
G501 G2r.G502 ercl
BLK
,l'
G5o1G502
LOCK
o
POWER DOORLOCK CONTROLUNIT
8LK
A-l
G501G502
23-242
Page 1298 of 1681

I,t
Troubleshooting
* lf the system is working normally, all doors will unlock when you hold the door key in the unlock oosrtion {key cylinder
switch and door lock knob switch turned ON) for one second or more
)
NOTE: The numbers in the table show the troubleshooting sequence
Item to be inspected
Symptom
g
z:t
;i
:
5
{,!
(,o
o-c
E5
B
'io
B
o)c
c
o
:
D
.uo
I
o)
o-
-c
:o
o
I
!
o)
cJ
o
c
c
o)
Power door lock system doesn't
operate at all.
G501
G502WHT/GRN
Doors don't lock or
unlock with the
driver's door lock
switch.
All doors2G 501
G502
GRN/RED or
GRN/WHT
One or
more doors
'I23WHT/RED or
YEL/RED
Doors don't lock or
unlock with the
passenger's door
lock switch.
All doors1G201
G401
BLK/RED or
BLK/WHT
One or
more ooors123WHT/RED or
YEL/RED
Doors don't lock or
unlock with the
driver's door lock
knob.
All doors123G501
G502
BLU/RED or
BLU/WHT
One or
more doors123WHT/RED or
YEL/RED
Door don't lock or
unlock with the
passenger's door
key.
All doorsl2G201
G401
LT GRN or
LT BLU
One or
more doors2WHT/RED or
YEL/RED
Doors don't unlock
with the driver's
door key.
Driver's
ooor23G501
G502
BRN, WHT REO
or YEL RED
*All doors1G 501
G502
BRN, WHT/RED
or YEL RED
-
23-243
Page 1299 of 1681
Power Door Locks
Control Unit Input Test
1.Remove the driver's door panel (see section 20).
Disconnect the 14P connector from the control unit,
Inspect the connector and socket terminals to besure they are all making good contact.
a lf the terminals are bent. loose or corroded, repairthem as necessary, and recheck the system.a lf the terminals look OK, make the following in-put tests at the connector.- lf any test indicates a probiem, find and cor-rect the cause, then recheck the system.- lf all the input tests prove OK, the control unitmust be faulty; replace it.
14P CONNECTOR
View from wire side
23-244
Page 1300 of 1681

Disconnect the 14P connector from the power door lock control unit'
)
No. WileTest conditionTest: Dgsired resultPossible causo if rosult is not obtained
Reconnect the 14P conneetor to the power door lock control unit'
No. wireTest conditionTest: Desired resultPossible cause il result is not obtained
I
1BLKUnder all conditionsCheck tor continuity to ground:
There should be continuity.
. Poor ground (G50'1, G502). An open in the wire
2
WHTi RED
ano
YEL/RED
connect the YEL/RED
terminal to the WHT/
GBN terminal, and the
WHT/RED terminal to
the BLK terminal
momentarily.
Check door lock operation:
All doors should unlock.
Faulty actuator
An open in the wire
Blown No. 1 {20 A} fuse in the
under-dash Juse/relay box
Connect the WHT/RED
terminal to the WHT/
GRN terminal, and the
YEL/RED terminal to
the BLK terminal
momentanly.
Check door lock operation:
All doors should lock.
3WHT/GRN
Under all conditionsCheck for voltage to ground:
There should be battery voltage.
. Blown No. 1 (20 A) fuse in the
under-dash fuse/relay box. An open in the wire
GRN/WHTDriver's door lock
switch in LOCK
Check lor voltage to ground:
There should be 1 V or less.
Faulty driver's door lock switch
Poor ground (G501, G502)
An open in the wire
GRN/REDDriver's door lock
switch in UNLOCK
5
BLK/WHTRight front door lock
switch in LOCK
Check for voltage to ground:
There should be 1 V or less.
Faulty front passenger's door lock
switch
Poor ground (G201 , G401)
An open in the wireBLKi REDRight front door lock
switch in UNLOCK
BLU/WHTDriver's door lock knob
in LOCK
Check for voltage to ground:
There should be 1 V or less.
. Faulty driver's door lock actuator. Poor ground (G501, G502). An open in the wire
BLU/REDDriver's door lock
knob in UNLOCK
7BRN
Oriver's doo. key
cylinder in UNLOCK
Check for voltage to ground:
There should be 1 V or less as
the switch is turned.
. Faulty driver's door key cvtrrder
switch. Poor ground (G501, G502. An open in the wire
8
LT BLUFront passenger's door
key cylinder in LOCK
Check for voltage to ground:
There should be 1 V or less as
the switch is turned.
. Faulty front passengef's door
cylinder switch. poor ground lG20r G4Ol). An open in the *reLT GRNFront passenger's door
key cylinder in UNLOCK
\J
CAUTION: To prevent damage to the motol, apply battery voltage only momentarily
23-245
Page 1301 of 1681
r
Power Door Locks
Driver's Door Lock Actuator Test
Remove the door panel (see section 20).
Disconnect the 6P connector from the actuator.
CONNECTOR
Check actuator operation by connecting power and
ground according to the table.
CAUTION: To prevent damage to the acluator, ap-ply battely voltage only momentarily.
if the actuator fails to work properly, replace it.
Terminal
DE
Position
LOCK@o
UNLOCKo@
5. Check for continuity between the terminals in each
switch position accordiog to the table.
DOOR LOCK KNOB
Terminal
il;;-----tFcB
LOCKoo
UNLOCKo-----o
23-246
Page 1302 of 1681
Passenger's Door Lock Actuator Test
1. Remove the door panel (see section 20).
2. Disconnect the 2P connector from the actuator.
Front Passenger's Door:
lerminal side
ACTUATOR
)J
23-247
Rear Passenger's Door:
NOTE: Left rear actuator is shown, right rear actuator
is similar.
View from lerminal side
Check actuator operation by connecting power and
ground according to the table.
CAUTION: To prevent damage to the actuator, ap-
ply battery voltage only momenta.ily.
;
4. lf the actuator tails to work properly, replace it.
Term inal
Position
B
LOCKo@
UNLOCKoo
Page 1303 of 1681
Power Door Locks
Driver's Door Key Cylinder
Switch Test
1. Remove the door panel (see section 20).
2. Disconnect the 2P connector f.om the switch.
terminal side
Check tor continuity between the terminals in eachswitch position according to the table.
Front Passenger's Door Key Cylinder
Switch Test
1. Remove the door panel (see section 20).
2. Disconnect the 3P connector from the switch.
FRONTPASSENGER'SDOOR KEYCYLINDERSwlTCH
CONNECTOR
3. Check for continuity between the terminals in eachswitch position according to the table.
Terminal
il;------__\tt
UNLOCKoo
OFF
Terminal
P**--__\c
LOCKo--o
UNLOCKoo
UNTOCK<
I
UNLOCK
r--O\:
I LOCK
23-248
(--l__!J KEYtil
Page 1304 of 1681
Door Lock Switch Test
1. Remove the inner handle trim.
2. Disconnect the 3P connector from the switch.
3. Check tor continuity between the terminals in each
switch position according to the table.
)
oooRLOCKswtTcH
Terminal
t"r--
-\Bc
LOCKo-----o
OFF
UNLOCKoo
4
23-249