1998 NISSAN PATROL Check

Trouble Diagnosis
SYMPTOM CHART
REFERENCE PAGE EL-207 EL-208 EL-209 EL-210
SYMPTOM
MAIN POWER SUPPLY AND GROUND CIRCUIT CHECK
DIAGNOSTIC PROCEDURE 1
(Door lock/unlock switch check)
DIAGNOSTIC PROCEDURE 2
(Door lock actuator check)
DIAGNOSTIC PROCEDURE 3
(Driver side door lock switch check)
None of the doors lock/unlock when operat-
ing any switch.XX
One or more doors are not locked and/or
unlocked.X
Door lock/unlock switch does not operate. X
Door knob lock switch/key cylinder on driv-
er's door does not operate.X
Driver side door does not lock/unlock when
operating remote controller. (With multi-re-
mote control system)X
POWER SUPPLY AND GROUND CIRCUIT CHECK
Power supply circuit check
Terminal Ignition switch
Å@OFF ACC ON
j
11GroundBattery
voltageBattery
voltageBattery
voltage
Ground circuit check
Terminals Continuity
j
18- Ground Yes
SEL860UB
SEL854UD
POWER DOOR LOCK
EL-207

DIAGNOSTIC PROCEDURE 1
(Door lock/unlock switch check)
CHECK DOOR LOCK/UNLOCK SWITCH
INPUT SIGNAL.
1. Disconnect control unit connector.
2. Check continuity between control unit
terminalj
4orj5and ground.
NG
cOK
Door lock/unlock switch is
OK.
CHECK DOOR LOCK/UNLOCK SWITCH.
1. Disconnect door lock/unlock switch con-
nector.
2. Check continuity between power win-
dow main switch (Door lock/unlock
switch) terminals.
OK
cNG
Replace door lock/unlock
switch.
Check the following.
+Ground circuit for door lock/unlock
switch
+Harness for open or short between door
lock/unlock switch and control unit con-
nector
TerminalsDoor lock/
unlock switch
(LH or RH)
conditionContinuity
j
4- GroundLock Yes
N and Unlock No
j
5- GroundUnlock Yes
N and Lock No
ConditionTerminals3714
Unlockjj
N No continuity
Lockjj
SEL147VA
SEL432V
SEL433V
.
.
POWER DOOR LOCK
Trouble Diagnosis (Cont'd)
EL-208

DIAGNOSTIC PROCEDURE 2
(Door lock actuator check)
CHECK DOOR LOCK ACTUATOR CIR-
CUIT.
Check voltage for door lock actuator.
OK
cNG
Replace control unit.
(Before replacing control
unit, perform DIAGNOSTIC
PROCEDURE 1.)
CHECK DOOR LOCK ACTUATOR.
1. Disconnect door lock actuator connec-
tor.
2. Apply 12V direct current to door lock
actuator and check operation.
OK
cNG
Replace door lock actuator.
Repair harness between control unit con-
nector and door lock actuator.
Door lock/unlock
switch conditionTerminals
Voltage
(V)
Å@
Lockj
15ground
Battery
voltage
Unlockj
16ground
Door lock actuator operationTerminalsÅ@
Unlocked®Lockedj
3j1
Locked®Unlockedj1j3
SEL863UB
SEL434V
.
.
POWER DOOR LOCK
Trouble Diagnosis (Cont'd)
EL-209

DIAGNOSTIC PROCEDURE 3
(Driver side door lock switch check)
CHECK DOOR LOCK SWITCH INPUT
SIGNAL.
Check voltage between control unit termi-
nalj
2and ground.
NG
cOK
Driver side door lock
switch is OK.
CHECK DOOR LOCK SWITCH.
1. Disconnect driver side door lock switch
or door lock actuator connector.
2. Check continuity between door lock
switch terminals.
Without multi-remote control system
With multi-remote control system
OK
cNG
Replace door lock switch.
Check the following.
+Ground circuit for door lock switch
+Harness for open or short between door
lock switch and control unit
Driver side door lock
switch conditionVoltage
(V)
Lock Approx. 12
Unlock 0
Terminals Condition Continuity
j
1-j2Locked No
Unlocked Yes
Terminals Condition Continuity
j
2-j4Locked No
Unlocked Yes
SEL861UB
SEL435V
SEL436V
.
.
POWER DOOR LOCK
Trouble Diagnosis (Cont'd)
EL-210

Trouble Diagnoses
PRELIMINARY CHECK
CHECK-IN
Open all windows and remove
key from ignition key cylinder.
Does power door lock operate
properly?
Ye s
cNo (All doors)
Power door lock does not operate by using;
Ð any switch.
...........................................................................
Ð driver side lock knob switch and/or key cyl-
inder.
...........................................................................
Ð passenger side lock knob switch and/or key
cylinder..
cSYMPTOM 1
cSYMPTOM 2
cSYMPTOM 3
cNo (Speci®c door)
SYMPTOM 4
Does super lock set by using
door key cylinder?
Ye s
cNo (All doors)
Super lock does not set by using;
Ð both door key cylinders.
...........................................................................
Ð one of door key cylinders.
cSYMPTOM 5
cSYMPTOM 6
cNo (Speci®c door)
SYMPTOM 9
Does super lock release by using
door key cylinder or IGN key
switch?
Ye s
cNo (All doors)
Super lock does not release by using;
Ð one or both door key cylinders.
...........................................................................
Ð IGN key switch.
(Signal from NATS IMMU)
cSYMPTOM 7
cSYMPTOM 8
cNo (Speci®c door)
SYMPTOM 9
Does super lock set/release by
using multi-remote controller?
(If equipped)
Ye s
cNo
Does multi-remote control system operate
properly?cYe s
SYMPTOM 11
cNo
Check ``MULTI-
REMOTE
CONTROL''
system.
Insert key to ignition key cylinder,
open any door and lock the door
using driver or passenger side
knob lock switch.
Does key reminder system oper-
ate properly?
Ye s
cNo
SYMPTOM 10
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 Ð Super Lock Ð
EL-223

Before starting trouble diagnoses below, perform preliminary check, EL-223.
Symptom numbers in the symptom chart correspond with those of Preliminary check.
SYMPTOM CHART
REFERENCE PAGE EL-225 EL-226 EL-227 EL-228 EL-229 EL-230 EL-231 EL-232 EL-232 EL-233
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
(Super lock actuator check)
Procedure 5
(Door switch check)
Procedure 6
(NATS release signal check)
Procedure 7
(Key switch check)
Procedure 8
(Ignition switch ``ON'' circuit check)
Procedure 9
(Remote controller signal check)
1Power door lock does not operate
using any switch.XX X
2Power door lock does not operate
with any switch of driver side.X
3Power door lock does not operate
with any switch of passenger side.XX
4Speci®c door lock actuator does not
operate.X
5Super lock cannot be set by both
door key cylinders.XXX XX
6Super lock cannot be set by one of
door key cylinders.X
7*Super lock cannot be released by
one or both door key cylinders.X
8*Super lock cannot be released by
ignition key switch. (Signal from
NATS IMMU)X
9Speci®c super lock actuator does not
operate.X
10*Key reminder system does not
operate.XX
11Super lock cannot be set/released
by using multi-remote controller.X
X: Applicable
*: Make sure the power door lock system operates properly.
POWER DOOR LOCK Ð Super Lock Ð
Trouble Diagnoses (Cont'd)
EL-224

POWER SUPPLY AND GROUND CIRCUIT CHECK
Main power supply circuit check
Terminals Ignition switch position
Å@OFF ACC ON
j
11GroundBattery
voltageBattery
voltageBattery
voltage
Ground circuit check
Terminals Continuity
j
16- Ground Yes
SEL811UB
SEL812UB
POWER DOOR LOCK Ð Super Lock Ð
Trouble Diagnoses (Cont'd)
EL-225

DIAGNOSTIC PROCEDURE 1
(Door unlock sensor check)
CHECK DOOR UNLOCK SENSOR
INPUT SIGNAL.
Check voltage between control unit termi-
nalsj
4orj5and ground.
Refer to wiring diagram in EL-215 (LHD),
EL-219 (RHD).
NG
cOK
Door unlock sensor is OK.
CHECK DOOR UNLOCK SENSOR.
1. Disconnect door unlock sensor connec-
tor.
2. Check continuity between door unlock
sensor terminals.
OK
cNG
Replace door lock actuator
assembly.
Check the following.
+Door unlock sensor ground circuit
+Harness for open or short between con-
trol unit and door unlock sensor
Terminals
ConditionVoltage
[V]
Å@
Driver
sidej4GroundLockedApprox.
5
Unlocked 0
Pas-
senger
sidej
5GroundLockedApprox.
5
Unlocked 0
Terminals Condition Continuity
j
2-j5Locked No
Unlocked Yes
SEL813UB
SEL814UB.
.
POWER DOOR LOCK Ð Super Lock Ð
Trouble Diagnoses (Cont'd)
EL-226