rear NISSAN PATROL 1998 Y61 / 5.G Electrical System Owner's Guide

Trouble Diagnoses
SYMPTOM: Rear window defogger does not activate, or does
not go off after activating.
CHECK REAR WINDOW DEFOGGER
OUTPUT SIGNAL.
1. Turn ignition switch to ON position.
2. Check voltage between control unit har-
ness terminalsj
9and ground.
NG
cOK
Check the following.
+Rear window defogger
relay
(Refer to EL-164.)
+Rear window defogger
circuit
+Rear window defogger
®lament
(Refer to EL-164.)
1. Disconnect control unit connector.
2. Turn ignition switch to ON position.
3. Check voltage between control unit ter-
minalj
9and ground.
Battery voltage should exist.
OK
cNG
Check the following.
+7.5A fuse [No.
8,
located in the fuse block
(J/B)]
+Rear window defogger
relay
+Harness for open or
short between control
unit and fuse
CHECK REAR WINDOW DEFOGGER
SWITCH INPUT SIGNAL.
Check continuity between control unit ter-
minalj
8and ground.
OK
cNG
Check the following.
+Rear window defogger
switch
(Refer to EL-164.)
+Harness for open or
short between control
unit and rear window
defogger switch
+Rear window defogger
switch ground circuit
CHECK IGNITION INPUT SIGNAL.
Check voltage between control unit termi-
nalj
12and ground.
OK
cNG
Check the following.
+7.5A fuse [No.
8located in the fuse block
(J/B)]
+Harness for open or
short between control
unit and fuse
CHECK CONTROL UNIT GROUND CIR-
CUIT.
Check continuity between control unit ter-
minalj
18and ground.
Continuity should exist.
OK
cNG
Repair harness or connec-
tors.
Replace control unit.
Condition Voltage [V]
Rear window defogger
switch is released.Approx. 12
Rear window defogger
switch is pushed.0
Condition of
defogger switchContinuity
Rear window defogger
switch is pushed.Ye s
Rear window defogger
switch is released.No
Condition Voltage [V]
Ignition switch is ``ON''. Approx. 12
Ignition switch is ``OFF''. 0
SEL856UA
SEL857UA
SEL858UA
SEL859UA
SEL854UC
.
.
.
.
.
REAR WINDOW DEFOGGER
EL-163

Electrical Components Inspection
REAR WINDOW DEFOGGER RELAY
Check continuity between terminalsj3andj5,j6andj7.
Condition Continuity
12V direct current supply between
terminalsj
1andj2Ye s
No current supply No
REAR WINDOW DEFOGGER SWITCH
Check continuity between terminals when rear window defogger
switch is pushed and released.
Terminals Condition Continuity
j
1-j2
Rear window defogger
switch is pushedYe s
Rear window defogger
switch is releasedNo
Filament Check
1. Attach probe circuit tester (in volt range) to middle portion of
each ®lament.
+When measuring voltage, wrap tin foil around the top of
the negative probe. Then press the foil against the wire
with your ®nger.
2. To locate burned out point, move probe to left and right along
®lament. Test needle will swing abruptly when probe passes the
point.
+If a ®lament is burned out, circuit tester registers 0 or 12
volts.
SEC202B
SEL430TC
SEL263
SEL122R
SEL266
REAR WINDOW DEFOGGER
EL-164

Filament Repair
REPAIR EQUIPMENT
1. Conductive silver composition (Dupont No. 4817 or equivalent)
2. Ruler 30 cm (11.8 in) long
3. Drawing pen
4. Heat gun
5. Alcohol
6. Cloth
REPAIRING PROCEDURE
1. Wipe broken heat wire and its surrounding area clean with a
cloth dampened in alcohol.
2. Apply a small amount of conductive silver composition to tip of
drawing pen.
Shake silver composition container before use.
3. Place ruler on glass along broken line. Deposit conductive sil-
ver composition on break with drawing pen. Slightly overlap
existing heat wire on both sides [preferably 5 mm (0.20 in)] of
the break.
4. After repair has been completed, check repaired wire for con-
tinuity. This check should be conducted 10 minutes after silver
composition is deposited.
Do not touch repaired area while test is being conducted.
5. Apply a constant stream of hot air directly to the repaired area
for approximately 20 minutes with a heat gun. A minimum dis-
tance of 3 cm (1.2 in) should be kept between repaired area
and hot air outlet. If a heat gun is not available, let the repaired
area dry for 24 hours.
BE540
SEL012D
SEL013D
REAR WINDOW DEFOGGER
EL-165

Trouble Diagnoses
RADIO
Symptom Possible causes Repair order
Radio inoperative (no digital
display and no sound from
speakers).
See NOTE.1. 10A fuse
2. Poor radio case ground
3. Radio1. Check 10A fuse [No.
10, located in fuse block (J/B)].
Turn ignition switch ON and verify battery positive volt-
age is present at terminalj
10of radio.
2. Check radio case ground.
3. Remove radio for repair.
Radio controls are operational,
but no sound is heard from
any speaker.1. Radio output
2. Radio1. Check radio output voltages.
2. Remove radio for repair.
Radio presets are lost when
ignition switch is turned OFF.1. 10A fuse
2. Radio1. Check 10A fuse (No.
56, located in fuse and fusible link
box) and verify battery positive voltage is present at terminal
j
6of radio.
2. Remove radio for repair.
Individual speaker is noisy or
inoperative.1. Speaker
2. Radio output
3. Speaker circuit
4. Radio1. Check speaker.
2. Check radio output voltages.
3. Check wires for open or short between radio and speaker.
4. Remove radio for repair.
Radio stations are weak or
noisy.1. Antenna
2. Poor radio ground
3. Radio1. Check antenna.
2. Check radio ground.
3. Remove radio for repair.
FM stations are weak or noisy
but AM stations are OK. (with
window antenna)1. Window antenna
2. Radio1. Check window antenna.
2. Remove radio for repair.
Radio generates noise in AM
and FM modes with engine
running.1. Poor radio ground
2. Loose or missing ground bonding straps
3. Ignition condenser or rear window defogger
noise suppressor condenser
4. Alternator
5. Ignition coil or secondary wiring
6. Radio1. Check radio ground.
2. Check ground bonding straps.
3. Replace ignition condenser or rear window defogger noise
suppressor condenser.
4. Check alternator.
5. Check ignition coil and secondary wiring.
6. Remove radio for repair.
Radio generates noise in AM
and FM modes with accesso-
ries on (switch pops and motor
noise).1. Poor radio ground
2. Antenna
3. Accessory ground
4. Faulty accessory1. Check radio ground.
2. Check antenna.
3. Check accessory ground.
4. Replace accessory.
NOTE:
If the radio has anti-theft function, check the anti-theft function of the radio before circuit inspection.
(Radios which have anti-theft function are equipped with a code indicator. For details, refer to EL-173.)
Speaker inspection
1. Disconnect speaker harness connector.
2. Measure the resistance between speaker terminalsj
1andj2.
+The resistance should be2-4W.
3. Using jumper wires, momentarily connect a 9V battery between speaker terminalsj
1andj2.
+A momentary hum or pop should be heard.
Antenna inspection
Using a jumper wire, clip an auxiliary ground between antenna and body.
+If reception improves, check antenna ground (at body surface).
+If reception does not improve, check main feeder cable for short circuit or open circuit.
Radio inspection
All voltage inspections are made with:
+Ignition switch ON or ACC
+Radio ON
+Radio connected (If removed for inspection, supply a ground to the case using a jumper wire.)
AUDIO
EL-172

3. To locate broken point, move probe along element. Tester
needle will swing abruptly when probe passes the point.
ELEMENT REPAIR
Refer to ``Filament Repair'', ``REAR WINDOW DEFOGGER'' (EL-
165).
SEL253I
AUDIO ANTENNA
Window Antenna Repair (Cont'd)
EL-185

System Description
With ignition switch in ON or START position, power is supplied
+through 7.5A fuse [No.
8, located in the fuse block (J/B)]
+to power window relay terminalj
1.
The power window relay is energized and power is supplied
+through power window relay terminalj
5
+to power window main switch terminalj1,
+to power window sub switch terminalj
5.
MANUAL OPERATION
NOTE:
Numbers in parentheses are terminal numbers, when power window switch is pressed in the UP and DOWN
positions respectively.
Driver side
When the driver side switch in the power window main switch is pressed in the up position, power is supplied
+to driver side power window regulator terminal (j
2,j1)
+through power window main switch terminal (j
9,j8).
Ground is supplied
+to driver side power window regulator terminal (j
1,j2)
+through power window main switch terminal (j
8,j9).
Then, the motor raises or lowers the window until the switch is released.
Passenger side
MAIN SWITCH OPERATION
Power is supplied
+through power window main switch (j
5,j6)
+to front power window sub-switch (j
3,j4).
The subsequent operation is the same as the sub-switch operation.
SUB-SWITCH OPERATION
Power is supplied
+through front power window sub-switch (j
1,j2)
+to passenger side power window regulator (j
2,j1).
Ground is supplied
+to passenger side power window regulator (j
1,j2)
+through front power window sub-switch (j
2,j1)
+to front power window sub-switch (j
4,j3)
+through power window main switch (j
6,j5).
Then, the motor raises or lowers the window until the switch is released.
Rear door
Rear door windows will raise and lower in the same manner as passenger side door window.
AUTO OPERATION
The power window AUTO feature enables the driver to open or close the driver's window without holding the
window switch in the respective position.
When the AUTO switch in the main switch is pressed and released, the driver's window will travel to the fully
open or closed position.
POWER WINDOW LOCK
The power window lock is designed to lock operation of all windows except for driver's door window.
When the lock switch is pressed to lock position, ground of the sub-switches in the power window main switch
is disconnected. This prevents the power window motors from operating.
POWER WINDOW
EL-196

System Description
Power is supplied at all times
+through 40A fusible link (Letter
e, located in the fuse and fusible link box)
+to circuit breaker terminalj
1
+through circuit breaker terminalj2
+to smart entrance control unit terminalj11.
Ground is supplied to smart entrance control unit terminalj
18through body grounds.
INPUT
When the door lock & unlock switch (power window main switch) is in LOCKED position, ground signal is
supplied
+to smart entrance control unit terminalj
4
+through door lock & unlock switch terminalj14.
When the door lock & unlock switch (power window main switch) is in UNLOCKED position, ground signal is
supplied
+to smart entrance control unit terminalj
5
+through door lock & unlock switch terminalj7.
Driver side door key cylinder and driver side lock knob are connected to driver side door lock switch with a
rod. When driver side door lock switch is in UNLOCKED position, ground signal is supplied
+to smart entrance control unit terminalj
2
+through driver side door lock switch terminalj1(without multi-remote control system) or
+through driver side door lock actuator terminalj
2(with multi-remote control system).
When driver side door lock switch is in LOCKED position, ground signal is interrupted.
Door lock operates according to the conditions of the door lock & unlock switch (power window main switch)
and driver side door lock switch.
OUTPUT
Unlock
Ground is supplied
+to passenger side door lock actuator, rear door lock actuator LH and RH terminalj
3
+through smart entrance control unit terminalj15.
Power is supplied
+to passenger side door lock actuator, rear door lock actuator LH and RH terminalj
1
+through smart entrance control unit terminalj16.
Then, the doors are unlocked.
Lock
Ground is supplied
+to passenger side door lock actuator, rear door lock actuator LH and RH terminalj
1
+through smart entrance control unit terminalj16.
Power is supplied
+to passenger side door lock actuator, rear door lock actuator LH and RH terminalj
3
+through smart entrance control unit terminalj15.
Then, the doors are locked.
POWER DOOR LOCK
EL-204

Rear Door HarnessLH SIDE
RH SIDE
CEL771
CEL788
HARNESS LAYOUT
EL-312

Back Door Harness and Rear Window Defogger
Harness
CEL772
HARNESS LAYOUT
EL-313

Headlamp
Wattage (12 volt)
High/low (without xenon headlamp) 60/55 (H4)
Exterior Lamp
Wattage (12 volt)
Front combination lampFront turn signal 21
Parking 5
Side turn signal lamp 5
Rear combination lampTurn signal 21
Stop/Tail 21/5
Back-up 21
Fog 21
Rear bumper combina-
tion lampTurn signal 21
Stop/Tail 21/5
License plate lamp 5
High-mounted stop lamp 21
Interior Lamp
Wattage (12 volt)
Interior room lamp 10
Map lamp 10
Vanity mirror lamp 3
BULB SPECIFICATIONS
EL-314