2000 NISSAN PATROL Electronic Repair Manual

DIAGNOSTIC PROCEDURE 7
(NATS release signal check)
Does engine start properly?
Yes
cNo
Check NATS system.
CHECK NATS SIGNAL CIRCUIT.
1. Disconnect super lock control unit con-
nector and NATS IMMU connector.
2. Check continuity between super lock
control unit terminal
V34and NATS
IMMU terminal
V3.
Continuity should exist.
3. Check continuity between super lock
control unit terminal
V34and ground.
Continuity should not exist.
Refer to wiring diagram in EL-1128
(LHD), EL-1133 (RHD).
OK
cNG
Repair harness.
CHECK NATS RELEASE SIGNAL.
1. Connect super lock control unit con-
nector and NATS IMMU connector.
2. Check voltage between super lock con-
trol unit terminal
V34and ground.
OK
cNG
Check NATS system.
Replace super lock control unit.
Ignition switch conditionVoltage
[V]
OFF
5
More than 20 seconds after ignition
switch turned ON
For 20 seconds after ignition switch
turned ONPulse
SEL142X
SEL143X
.
.
.
POWER DOOR LOCK Ð Super Lock Ð
Trouble Diagnoses (Cont'd)
EL-1147

DIAGNOSTIC PROCEDURE 8
(Key switch check)
CHECK KEY SWITCH INPUT SIGNAL.
Check voltage between super lock control
unit terminal
V18and ground.
Refer to wiring diagram in EL-1128
(LHD), EL-1133 (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 terminal
V2and 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Key is withdrawn. 0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
V1-V2
Key is
inserted.Yes
Key is with-
drawn.No
DIAGNOSTIC PROCEDURE 9
(Ignition switch ªONº circuit check)
Terminals Ignition switch position
Å@OFF ACC ON
V17Ground 0V 0VBattery
voltage
If NG, check the following.
+10A fuse [No.
25, located in the fuse block (J/B)]
+Harness for open or short
SEL144X
SEL197X
SEL015WB
SEL145X
.
.
.
POWER DOOR LOCK Ð Super Lock Ð
Trouble Diagnoses (Cont'd)
EL-1148

System Description
FUNCTION
Multi-remote control system has the following function.
+Door lock
+Door unlock
+Hazard reminder
LOCK OPERATION
When the LOCK signal is input to multi-remote control unit (the antenna of the system is combined with
multi-remote control unit), ground is supplied
+through multi-remote control unit terminal
V5
+to super lock control unit terminalV32.
Then super lock control unit locks all doors and set super lock. (Super lock will not be set while key is inserted
in the ignition key cylinder.)
UNLOCK OPERATION
When the UNLOCK signal is input to multi-remote control unit (the antenna of the system is combined with
multi-remote control unit) once, ground is supplied
+through multi-remote control unit terminal
V6
+to super lock control unit terminalV33.
Then super lock control unit unlocks driver's door and release super lock on all doors.
If the UNLOCK signal is sent to the multi-remote control unit again within 5 seconds, all other doors will be
unlocked.
HAZARD REMINDER
When the doors are locked or unlocked (signal from front door unlock sensor LH) by multi-remote controller,
power is supplied
+through multi-remote control unit terminals
V3andV8
+to the hazard warning lamps
Then hazard warning lamp flashes as follows.
+Lock operation: Flash once
+Unlock operation: Flash twice
MULTI-REMOTE CONTROLLER ID CODE ENTRY
A maximum of four remote controllers can be entered. Any attempt to enter a remote controller will erase
all ID codes previously entered. Therefore, be sure to receive all remote controllers from the vehicle owner
when any ID code entry is performed.
To enter ID code entry, the following signals must be input to the multi-remote control unit.
+Ignition switch ON signal
+Battery power supply
+Signal from remote controller
For detailed procedure, refer to ªID Code Entry Procedureº in EL-1156.
MULTI-REMOTE CONTROL SYSTEM
EL-1149

Wiring Diagram Ð MULTI Ð/LHD Models
TEL274M
MULTI-REMOTE CONTROL SYSTEM
EL-1150

TEL275M
MULTI-REMOTE CONTROL SYSTEM
Wiring Diagram Ð MULTI Ð/LHD Models
(Cont'd)
EL-1151

Wiring Diagram Ð MULTI Ð/RHD Models
TEL278M
MULTI-REMOTE CONTROL SYSTEM
EL-1152

TEL279M
MULTI-REMOTE CONTROL SYSTEM
Wiring Diagram Ð MULTI Ð/RHD Models
(Cont'd)
EL-1153

Trouble Diagnoses
SYMPTOM CHART
Symptom Possible cause Diagnoses/service order
No doors can be locked or un-
locked by remote control opera-
tion. (See NOTE.)1. Power door lock system
2. Remote controller battery
3. Door lock/unlock circuit
4. Ignition power supply circuit for
multi-remote control unit
5. Power supply circuit for multi-re-
mote control unit
6. Ground circuit for multi-remote
control unit
7. Remote controller1. Check power door lock operation.
2. Check remote controller battery. Refer to ªRemote
controller battery checkº in EL section of Service
Manual (SM7E-2Y61G1).
3. Check harness for open or short between multi-remote
control unit and super lock control unit.
4. Make sure battery voltage is present at terminal
V4of
multi-remote control unit while ignition switch is in IGN
position.
5. Make sure battery voltage is present at terminal
V2of multi-remote control unit.
6. Check continuity between terminal
V1of multi-remote
control unit and ground.
7. Replace remote controller. Refer to EL-1156.
Hazard reminder does not operate
properly.1. Hazard reminder output to haz-
ard warning lamps
2. Hazard reminder circuit
3. Driver's door unlock sensor1. Check hazard reminder output to hazard warning
lamps at terminals
V3andV8of multi-remote control
unit.
2. Check the harness for open or short between hazard
warning lamps and multi-remote control unit.
3. Check driver's door unlock sensor signal at terminal
V7of multi-remote control unit.
The new ID of remote controller
cannot be entered.1. Remote controller battery
2. Ignition power supply circuit
for multi-remote control unit
3. Driver's door unlock sensor
4. Remote controller1. Check remote controller battery. Refer to ªRemote
controller battery checkº in EL section of Service
Manual (SM7E-2Y61G1).
2. Make sure battery voltage is present at terminal
V4of
multi-remote control unit while ignition switch is in IGN
position.
3. Check driver's door unlock sensor signal at terminal
V7of multi-remote control unit.
4. Replace remote controller. Refer to EL-1156.
Refer to ªMULTI-REMOTE CONTROL UNIT INSPECTION TABLEº on next page to check the control unit
signals.
NOTE:
+The lock operation of multi-remote control system does not activate with the ignition key ON position.
MULTI-REMOTE CONTROL SYSTEM
EL-1154