Page 1385 of 2267
YEL904C
POWER DOOR LOCK
Wiring Diagram—D/LOCK—(Cont’d)
EL-253
Page 1386 of 2267
YEL905C
POWER DOOR LOCK
Wiring Diagram—D/LOCK—(Cont’d)
EL-254
Page 1387 of 2267
YEL906C
POWER DOOR LOCK
Wiring Diagram—D/LOCK—(Cont’d)
EL-255
Page 1388 of 2267
Trouble Diagnoses
PRELIMINARY CHECK
CHECK-IN
Open all windows and remove
key from ignition key cylinder.
Does power door lock operate
properly?
Ye s
No (All doors)
Power door lock does not operate by using;
—any switch.
......................................................................
—driver side lock knob switch and/or key
cylinder.
......................................................................
—passenger side lock knob switch and/or
key cylinder.
SYMPTOM 1
SYMPTOM 2
SYMPTOM 3
No (Specific door)
SYMPTOM 4
Insert key to ignition key
cylinder, open any door and
lock the door using driver side
knob lock switch.
Does key reminder system
operate properly?
Ye s
No
SYMPTOM 5
INSPECTION END
After performing preliminary check, go to symptom chart on the next page.
When one or more doors are opened, with lock knob on passenger door setting to LOCK, will lock pas-
senger door only. (Power door lock system will not operate.)
POWER DOOR LOCK
EL-256
Page 1389 of 2267
Before starting trouble diagnoses below, perform preliminary check, EL-256.
Symptom numbers in the symptom chart correspond with those of Preliminary check.
SYMPTOM CHART
REFERENCE PAGE EL-258 EL-259 EL-260 EL-261 EL-262 EL-263
SYMPTOM
Power supply and ground circuit check
Procedure 1
(Door unlock sensor check)
Procedure 2
(Door key cylinder switch check)
Procedure 3
(Door lock actuator check)
Procedure 4
(Door switch check)
Procedure 5
(Key switch check)
1Power door lock does not operate
using any switch.XX
2Power door lock does not operate
with lock/unlock switch.X
3Power door lock does not operate
with door key cylinder switch.X
4Specific door lock acutator does
not operate.X
5*Key reminder system does not
operate.XX
X: Applicable
*: Make sure the power door lock and key reminder system operate properly.
POWER DOOR LOCK
Trouble Diagnoses (Cont’d)
EL-257
Page 1390 of 2267
POWER SUPPLY AND GROUND CIRCUIT CHECK
Main power supply circuit check
Terminals Ignition switch position
LOCK ACC ON
9GroundBattery
voltageBattery
voltageBattery
voltage
Ground circuit check
Terminals Continuity
16- Ground Yes
YEL445B Time control
unit connector
YEL431B Time control unit connector
POWER DOOR LOCK
Trouble Diagnoses (Cont’d)
EL-258
Page 1391 of 2267
DIAGNOSTIC PROCEDURE 1
(Door unlock sensor check)
CHECK DOOR UNLOCK SENSOR
INPUT SIGNAL.
Check voltage between time control
unit connector terminals
35or36
and ground.
NG
OK
Door unlock sensor is
OK.
CHECK DOOR UNLOCK SENSOR.
1) Disconnect door unlock sensor con-
nector.
2) Check continuity between door
unlock sensor terminals.
OK
NG
Replace door lock actua-
tor assembly.
Check the following:
Door unlock sensor ground circuit.
Harness for open or short-circuit
between control unit and door unlock
sensor
Terminals
Condi-
tionVoltage
[V]
Driver
side
35GroundLockedApprox.
2
(Approx.
20 sec.)
Unlocked 0
Pas-
sen-
ger
side
36GroundLockedApprox.
12
(Approx.
20 sec.)
Unlocked 0
Terminals Condition Continuity
2-5Locked No
Unlocked Yes
YEL446B
Time control unit connector
YEL027D
POWER DOOR LOCK
Trouble Diagnoses (Cont’d)
EL-259
Page 1392 of 2267

DIAGNOSTIC PROCEDURE 2
(Door key cylinder switch check)
CHECK DOOR KEY CYLINDER
SWITCH INPUT SIGNAL (LOCK SIG-
NAL).
Check voltage between time control
unit connector terminal
29and
ground.
NG
OK
Door key cylinder switch
is OK.
CHECK DOOR KEY CYLINDER
SWITCH.
1) Disconnect door key cylinder switch
connector.
2) Check continuity between door key
cylinder switch terminals.
OK
NG
Replace key cylinder
switch.
Check the following:
Harness connectorsB3,M13
Harness connectorsM7,D1
Harness connectorsB5,D2
Harness connectorsB56,D11
Door key cylinder switch ground cir-
cuit
Harness for open or short-circuit
between super lock control unit and
door key cylinder.
Key cylinder switch operation Voltage [V]
Between neutral and lock 0
Unlock/neutral Approx. 5
Terminals Key position Continuity
1-2
Neutral No
Between
neutral and
lockYe s
Unlock/
neutralNo
Full stroke
(Lock)No
YEL028D
YEL817
Key cylinder switch
Driver side :
Passenger side:
POWER DOOR LOCK
Trouble Diagnoses (Cont’d)
EL-260