1998 NISSAN PATROL diagnostic connector

Trouble Diagnoses
DIAGNOSTIC PROCEDURE
SYMPTOM: Front interior room lamp does not turn on when
any door is opened, or timer does not operate
properly.
Does room lamp turn on when room lamp
switch is in ``ON'' position?
Ye s
cNo
Check the following.
+Bulb
+10A fuse [No.
20,
located in the fuse block
(J/B)]
+Harness for open or
short between fuse and
room lamp
+Room lamp ground con-
dition
Does key warning chime operate prop-
erly?
Ye s
cNo
Check ``WARNING
CHIME'' system.
(Refer to EL-135.)
Does power door lock operate using driver
side knob lock switch?
Ye s
cNo
Check ``POWER DOOR
LOCK'' system.
(Refer to EL-204.)
CHECK ROOM LAMP OUTPUT SIGNAL.
1. Turn room lamp switch to ``DOOR''
position.
2. Disconnect control unit connector.
3. Check voltage between control unit ter-
minalj
17and ground.
Battery voltage should exist.
OK
cNG
Check harness for open or
short between room lamp
and control unit.
CHECK DOOR SWITCH INPUT SIGNAL.
1. Connect control unit connector.
2. Check voltage between control unit ter-
minalj
10and ground.
OK
cNG
Check the following.
+Door switch
+Door switch ground con-
dition
+Harness for open or
short between control
unit and door switch
Replace control unit.
Condition Voltage [V]
At least one door is
opened.0
All doors are closed. Approx. 12
SEL152VA
SEL153VA
.
.
.
.
.
INTERIOR ROOM LAMP Ð With Timer Ð
EL-100

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 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

DIAGNOSTIC PROCEDURE 2
(Door key cylinder switch check)
CHECK DOOR KEY CYLINDER SWITCH
INPUT SIGNAL (LOCK SIGNAL).
Check voltage between control unit termi-
nalj
1and ground.
Refer to wiring diagram in EL-215 (LHD),
EL-219 (RHD).
NG
cOK
Door key cylinder switch is
OK.
CHECK DOOR KEY CYLINDER SWITCH.
1. Disconnect door key cylinder switch
connector.
2. Check continuity between door key cyl-
inder switch terminals.
OK
cNG
Replace key cylinder
switch.
Check the following.
+Door key cylinder switch ground circuit
+Harness for open or short between con-
trol unit and door key cylinder
Key cylinder switch operation Voltage [V]
Between neutral and lock 0
Unlock/neutral Approx. 5
Terminals Key position Continuity
j
1-j2(LH side)
j2-j3(RH side)Neutral No
Between
neutral and
lockYe s
Unlock/
neutralNo
SEL815UB
SEL492V
.
.
POWER DOOR LOCK Ð Super Lock Ð
Trouble Diagnoses (Cont'd)
EL-227

DIAGNOSTIC PROCEDURE 4
[Super lock actuator (in door lock actuator assembly)
check]
CHECK OUTPUT SIGNAL FOR SUPER
LOCK ACTUATOR.
Check voltage for super lock actuator.
Put the system in set condition before
checking release signal.
Refer to wiring diagram in EL-215 (LHD),
EL-219 (RHD).
OK
cNG
Super lock actuator is OK.
CHECK SUPER LOCK ACTUATOR.
1. Disconnect door lock actuator assembly
connector.
2. Set lever A in Lock position.
3. Apply 12V direct current to door lock
actuator assembly and check operation.
NG
cOK
Check harness between
control unit and door lock
actuator assembly.
Replace door lock actuator assembly.
Door key cylinder
switch conditionTerminals
Voltage
(V)
Å@Lock (Set)j18Ground
Approx. 12
Unlock
(Released)j
13Ground
Super lock actua-
tor operationTerminals
Connection from
lever B to lever A
Å@Released®Setj1j4Disconnect
Set®Releasedj
4j1Connect
SEL819UB
SEL820UB
.
.
POWER DOOR LOCK Ð Super Lock Ð
Trouble Diagnoses (Cont'd)
EL-229

DIAGNOSTIC PROCEDURE 5
(Door switch check)
CHECK DOOR SWITCH INPUT SIGNAL.
Check voltage between control unit termi-
nalj
8and ground.
Refer to wiring diagram in EL-215 (LHD),
EL-219 (RHD).
NG
cOK
Door switch is OK.
CHECK DOOR SWITCH.
1. Disconnect door switch connector.
2. Check continuity between door switch
terminals.
OK
cNG
Replace door switch.
Check the following.
+Door switch ground condition
+Harness for open or short between con-
trol unit and door switch
Condition Voltage [V]
Any door is opened. 0
All doors are closed. Approx. 12
Terminals Condition Continuity
Driver side
door
switchj
2-
groundClosed No
Open Yes
Other door
switchesj
1-
groundClosed No
Open Yes
SEL821UB
SEL822UC
.
.
POWER DOOR LOCK Ð Super Lock Ð
Trouble Diagnoses (Cont'd)
EL-230

DIAGNOSTIC PROCEDURE 6
(NATS release signal check)
Does engine start properly?
Ye s
cNo
Check NATS system.
CHECK NATS SIGNAL CIRCUIT.
1. Disconnect control unit connector and
NATS IMMU connector.
2. Check continuity between control unit
terminalj
9and NATS IMMU terminal
j
3(LHD models),j7(RHD models).
Continuity should exist.
3. Check continuity between control unit
terminalj
9and ground.
Continuity should not exist.
Refer to wiring diagram in EL-215
(LHD), EL-219 (RHD).
OK
cNG
Repair harness.
CHECK NATS RELEASE SIGNAL.
1. Connect control unit connector and
NATS IMMU connector.
2. Check voltage between control unit ter-
minalj
9and ground.
OK
cNG
Check NATS system.
Replace super lock control unit.
Ignition switch conditionVoltage
[V]
OFF
5
More than 10 seconds after ignition
switch turned ON
For 10 seconds after ignition switch
turned ONPulse
SEL493V
SEL494V
SEL495V
.
.
.
POWER DOOR LOCK Ð Super Lock Ð
Trouble Diagnoses (Cont'd)
EL-231

DIAGNOSTIC PROCEDURE 7
(Key switch check)
CHECK KEY SWITCH INPUT SIGNAL.
Check voltage between control unit termi-
nalj
7and ground.
Refer to wiring diagram in EL-215 (LHD),
EL-219 (RHD).
NG
cOK
Key switch is OK.
CHECK KEY SWITCH POWER SUPPLY.
1. Disconnect key switch connector.
2. Check voltage between key switch har-
ness terminalj
2and ground.
Battery voltage should exist.
OK
cNG
Check the following.
+7.5A fuse [No.
24,
located in fuse block
(J/B)]
+Harness for open or
short between key
switch and fuse
CHECK KEY SWITCH.
Check continuity between key switch ter-
minals.
OK
cNG
Replace key switch.
Check harness for open or short between
control unit and key switch.
Condition of key switch Voltage [V]
Key is inserted. Approx. 12
Key is withdrawn. 0
Terminals Condition Continuity
j
1-j2
Key is inserted. Yes
Key is with-
drawn.No
DIAGNOSTIC PROCEDURE 8
(Ignition switch ``ON'' circuit check)
Terminals Ignition switch position
Å@OFF ACC ON
j
6Ground 0V 0VBattery
voltage
If NG, check the following.
+10A fuse [No.
25, located in the fuse block (J/B)]
+Harness for open or short
SEL883UB
SEL496V
SEL462V
SEL829UB
.
.
.
POWER DOOR LOCK Ð Super Lock Ð
Trouble Diagnoses (Cont'd)
EL-232