1998 NISSAN PICK-UP Repair Manual

Wiring Diagram Ð D/LOCK Ð
HEL382A
POWER DOOR LOCK
EL-167

HEL962
POWER DOOR LOCK
Wiring Diagram Ð D/LOCK Ð (Cont'd)
EL-168

Trouble Diagnosis
SYMPTOM CHART
REFERENCE PAGE EL-169 EL-170 EL-171 EL-172
SYMPTOM
Main power supply and ground circuit check
Diagnostic procedure 1
(Door lock and unlock switch check)
Diagnostic procedure 2
(Door lock actuator check)
Diagnostic procedure 3
(Driver side lock knob 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 and unlock switch does not oper-
ate.X
Lock knob switch on driver's door does not
operate.X
MAIN POWER SUPPLY AND GROUND CIRCUIT
CHECK
Main power supply for door lock timer
Terminal Ignition switch
Å@OFF ACC ON
V3GroundBattery
voltageBattery
voltageBattery
voltage
Ground circuit for door lock timer
Terminals Continuity
V1- Ground Yes
SEL154V
SEL155V
POWER DOOR LOCK
EL-169

DIAGNOSTIC PROCEDURE 1
(Door lock and unlock switch check)
CHECK DOOR LOCK AND UNLOCK
SWITCH INPUT SIGNAL.
1. Disconnect door lock timer connector.
2. Check continuity between control unit
terminal
V5orV8and ground.
NG
cOK
Door lock and unlock
switch is OK.
CHECK DOOR LOCK AND UNLOCK
SWITCH.
1. Disconnect door lock and unlock switch
connector.
2. Check continuity between power win-
dow main switch (Door lock and unlock
switch) terminals.
OK
cNG
Replace door lock and
unlock switch.
Check the following.
lGround circuit for door lock and unlock
switch
lHarness for open or short between door
lock and unlock switch and door lock
timer connector
TerminalsDoor lock and
unlock switch
conditionContinuity
V5- GroundLock Yes
N and Unlock No
V8- GroundUnlock Yes
N and Lock No
ConditionTerminals
3714
Lockjj
N No continuity
Unlockjj
SEL156V
SEL157VA
.
.
POWER DOOR LOCK
Trouble Diagnosis (Cont'd)
EL-170

DIAGNOSTIC PROCEDURE 2
(Door lock actuator check)
CHECK DOOR LOCK ACTUATOR CIR-
CUIT.
Check voltage for door lock actuator.
OK
cNG
Replace door lock timer.
(Before replacing control
unit, perform DIAGNOS-
TIC 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 actua-
tor.
Repair harness between door lock timer
connector and door lock actuator.
Lock knob switch
conditionTerminals
Voltage
(V)
Å@
Lock
V2ground
Battery
voltage
Unlock
V4ground
Door lock actuator operationTermi-
nals
Å@
Unlocked®Locked
V1V2
Locked®UnlockedV2V1
SEL158V
SEL159V
.
.
POWER DOOR LOCK
Trouble Diagnosis (Cont'd)
EL-171

DIAGNOSTIC PROCEDURE 3
(Driver side lock knob switch check)
CHECK LOCK KNOB SWITCH INPUT
SIGNAL.
Check voltage between door lock timer
terminal
V6and ground.
NG
cOK
Driver side lock knob
switch is OK.
CHECK LOCK KNOB SWITCH.
1. Disconnect driver side lock knob switch
connector.
2. Check continuity between lock knob
switch terminals.
OK
cNG
Replace lock knob switch.
Check the following.
lGround circuit for lock knob switch
lHarness for open or short between lock
knob switch and door lock timer
Lock knob switch
conditionVoltage
(V)
Lock Approx. 12
Unlock 0
Terminals Condition Continuity
V1-V2Locked No
Unlocked Yes
SEL160V
SEL161V
.
.
POWER DOOR LOCK
Trouble Diagnosis (Cont'd)
EL-172

System Description
FUNCTION
Multi-remote control system has the following function.
lDoor lock
lDoor unlock
lHazard reminder
LOCK OPERATION
To lock door by multi-remote controller, the following two signals must be received.
lKey switch OFF (when ignition key is not in ignition key cylinder.)
lAll door switches CLOSED
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
lthrough multi-remote control unit terminalV10
lto door lock timer terminalV5and
lto multi-remote control relay-3 (LOCK) terminalV1.
Then door lock timer operates to lock doors (except for driver's door) and mutli-remote control relay-3
(LOCK) energized to lock driver's door.
UNLOCK OPERATION
To unlock door by multi-remote controller, the following signal must be received.
lKey switch OFF (when ignition key is not in ignition key cylinder)
When the UNLOCK signal is input to multi-remote control unit (the antenna of the system is combined with
multi-remote control unit), ground is supplied
lthrough multi-remote control unit terminalV11
lto door lock timer terminalV8and
lto multi-remote control relay-4 (UNLOCK) terminalV1.
Then door lock timer operates to unlock doors (except for driver's door) and mutli-remote control relay-4
(UNLOCK) is energized to unlock driver's door.
HAZARD REMINDER
When the doors and locked or unlocked by multi-remote controller, ground is supplied
lto terminalV1of multi-remote control relay-1 and 2
lthrough multi-remote control unit terminalV12.
Then the relays are energized and hazard warning lamp flashes as follows
lLock operation: Flash once
lUnlock 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.
lDriver side LOCKED signal (from driver side door unlock sensor)
lDoor switch CLOSED signal
lKey switch signal (INSERTED/WITHDRAWN)
lAccessory power supply
lSignal from remote controller
For detailed procedure, refer to ``ID Code Entry Procedure'' in EL-182.
MULTI-REMOTE CONTROL SYSTEM/FOR EUROPE
EL-173

Schematic
HEL383A
MULTI-REMOTE CONTROL SYSTEM/FOR EUROPE
EL-174