
System Description
The rear window defogger system is controlled by the super lock control unit. The rear window defogger
operates only for approximately 15 minutes.
Power is supplied at all times
+to rear window defogger relay terminal
V3
+through 15A fuse (No.43, located in the fuse and fusible link box),
+to rear window defogger relay terminal
V6
+through 20A fuse (No.44, located in the fuse and fusible link box) and
+to super lock control unit terminal
V1
+through 7.5A fuse [No.24, located in the fuse block (J/B)].
With the ignition switch in the ON or START position, power is supplied
+to the rear window defogger relay terminal
V1
+through 7.5A fuse [No.8, located in the fuse block (J/B)] and
+to super lock control unit terminal
V17
+through 10A fuse [No.25, located in the fuse block (J/B)].
Ground is supplied to terminal
V2of the rear window defogger switch through body grounds.
When the rear window defogger switch is turned ON, ground is supplied
+through terminal
V1of the rear window defogger switch
+to super lock control unit terminal
V35.
Terminal
V27of the super lock control unit then supplies ground to the rear window defogger relay terminal
V2.
With power and ground supplied, the rear window defogger relay is energized.
Power is supplied
+through terminals
V5andV7of the rear window defogger relay
+to the rear window defogger and door mirror defogger (with door mirror defogger).
The rear window defogger has an independent ground.
With power and ground supplied, the rear window defogger filaments heat and defog the rear window.
When the system is activated, the rear window defogger indicator illuminates in the rear window defogger
switch.
Power is supplied
+to terminal
V3of the rear window defogger switch
+from terminal
V5of the rear window defogger relay.
Terminal
V4of the rear window defogger switch is grounded through body grounds.
REAR WINDOW DEFOGGER
EL-1101

Trouble Diagnoses
Symptom Possible cause Repair order
None of the power windows can be
operated using any switch.1. 7.5A fuse, 40A fusible link and
M123circuit breaker
2. Power window main switch
ground circuit
3. Power window main switch1. Check 7.5A fuse [No.
8, located in fuse block (J/B)],
40A fusible link (letter
e, located in fuse and fusible
link box) and
M123circuit breaker. Turn ignition switch
ªONº and verify battery positive voltage is present at
terminals
V5andV13of power window main switch.
2. Check ground circuit of power window main switch.
3. Check power window main switch.
Driver side power window cannot be
operated but other windows can be
operated.1. Driver side power window regula-
tor circuit
2. Driver side power window regula-
tor
3. Power window main switch1. Check harness between power window main switch
and power window regulator for open or short circuit.
2. Check driver side power window regulator.
3. Check power window main switch.
Passenger power window cannot be
operated.1.
M92circuit breaker
2. Power supply of power window
relay
3. Power window relay ground cir-
cuit
4. Power window relay
5. Power window sub-switches
6. Passenger side power window
regulators
7. Power window main switch
8. Power window circuit1. CheckM92circuit breaker. Verify battery positive volt-
age is present at terminal
V3of power window relay.
2. Check harness between 7.5A fuse and power window
relay.
3. Check power window ground circuit.
4. Check power window relay.
5. Check power window sub-switch.
6. Check passenger side power window regulator.
7. Check power window main switch.
8-1. Check harness between power window relay and
power window sub-switch.
8-2. Check harnesses between power window main
switch and power window sub-switch for open/
short circuit.
8-3. Check harnesses between power window sub-
switch and power window regulator for open/
short circuit.
Passenger power window cannot be
operated using power window main
switch but can be operated by power
window sub-switch.1. Power window main switch 1. Check power window main switch.
Driver side power window auto func-
tion cannot be operated properly.1. Power window main switch
2. Encoder and limit switch1. Check power window main switch.
2. Check encoder and limit switch. (EL-1123)
Timer control for supplying power
after turning ignition switch to OFF
does not operate properly.1. Driver side door switch circuit.
2. Driver side door switch
3. Ignition switch ON signal circuit
4. Power window main switch1-1. Check harness between driver side door switch and
power window main switch.
1-2. Check ground circuit of driver side door switch.
2. Check driver side door switch.
3. Check ignition switch ON signal circuit to power win-
dow main switch.
4. Check power window main switch.
POWER WINDOW
EL-1122

CONSULT-II
CONSULT-II INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Insert NATS program card into CONSULT-II.
Program card
EEN99A
3. Connect CONSULT-II to Data link connector which is located
behind the fuse box cover.
4. Turn ignition switch ON.
5. Touch ªSTARTº.
6. Perform each diagnostic test mode according to each service
procedure.
For further information, see the CONSULT-II Operation
Manual, NATS.
SEL149X
SEL150X
NATS (Nissan Anti-Theft System)
EL-1169

DIAGNOSTIC PROCEDURE 2
Self-diagnostic results:
ªCHAIN OF ECM-IMMUº displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC
RESULTS ªCHAIN OF ECM-
IMMUº* displayed on CONSULT-II
screen.
OK*: In rare case, ªCHAIN OF
ECM-IMMUº might be
stored during key registra-
tion procedure, even if the
system is not malfunction-
ing.
CHECK POWER SUPPLY CIRCUIT FOR
IMMU.
Check voltage between terminal
V8of
IMMU and ground.
Voltage: Battery voltage
OK
cNG
Check the following:
+20A fuse (No.
50,
located in the fuse and
fusible link box)
+Harness for open or
short between fuse and
IMMU connector
Ref. part No. C1
CHECK IGN SW. ON SIGNAL.
Check voltage between terminal
V7of
IMMU and ground while ignition switch is
in the ªONº position.
Voltage: Battery voltage
OK
cNG
Check the following:
+10A fuse [No.
25,
located in the fuse
block (J/B)]
+Harness for open or
short between fuse and
IMMU connector
Ref. part No. C2
CHECK GROUND CIRCUIT FOR IMMU.
Check harness continuity between IMMU
terminal
V4and ground.
Continuity should exist.
OK
cNG
Repair harness.
Ref. part No. C3
CHECK COMMUNICATION ON OPEN
CIRCUIT.
Check harness continuity between the
following ECM terminal and IMMU termi-
nal.
ECM terminal
V55or IMMU terminal
V1
Continuity should exist.
OK
cNG
Repair harness.
Ref. part No. C4
VA
SEL153X
SEL154X
SEL155X
SEL156X
SEL157X
.
.
.
.
.
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-1176

1. Warm up engine.
2. Turn ignition switch OFF.
3.
Using CONSULT-II, make sure no error codes are indicated for
self-diagnosis items. Refer to EC section, ªFuel Pressure
Releaseº.
+Do not disconnect CONSULT-II until the end of this opera-
tion; it will be used to check engine rpm and for error detec-
tion at the end of this operation.
4. Disconnect the negative battery terminal.
5. Remove the following parts.
+Intercooler cover
+Intercooler
+Throttle body
+Rocker cover
6. To prevent fuel from being injected during inspection, remove
fuel injection pump fuse [ENG CONT (20A)] from fuse box on
the right side of engine compartment.
7. Remove glow plugs from all the cylinders.
+Before removal, clean the surrounding area to prevent
entry of any foreign materials into the engine.
+Carefully remove glow plugs to prevent any damage or
breakage.
+
Handle with care to avoid applying any shock to glow plugs.
8. Install adapter (SST) to installation holes of glow plugs and
connect compression gauge for diesel engine.
:15-19Nzm (1.5 - 2.0 kg-m, 11 - 14 ft-lb)
9. Connect battery negative terminal.
10. Set the ignition switch to ªSTARTº and crank. When gauge
pointer stabilizes, read compression pressure and engine
rpm. Repeat the above steps for each cylinder.
+Always use a fully-charged battery to obtain specified
engine speed.
Unit: kPa (bar, kg/cm2, psi)/rpm
Standard MinimumDifference limit between
cylinders
2,942 (29.42, 30.0, 427)/
2002,452 (24.52, 25.0, 356)/
200294 (2.94, 3.0, 43)/200
+When engine rpm is out of the specified range, check the
specific gravity of battery liquid. Measure again under cor-
rected conditions.
+If engine rpm exceeds the limit, check valve clearance and
combustion chamber components (valves, valve seats, cyl-
inder head gaskets, piston rings, pistons, cylinder bores, cyl-
inder block upper and lower surfaces) and measure again.
11. Complete this operation as follows:
a. Turn the ignition switch to ªOFFº.
b. Disconnect battery negative terminal.
c. Replace glow plug oil seals and install glow plugs.
d. Install fuel injection pump fuse [ENG CONT (20A)].
e. Connect battery negative terminal.
f. Using CONSULT-II make sure no error code is indicated for
items of self-diagnosis. Refer to EC section, ªTrouble Diag-
nosis Ð Indexº.
SEM318G
SEM334G
MEASUREMENT OF COMPRESSION PRESSURE
TROUBLESHOOTINGZD
EM-1010

Terminal Arrangement
CEL140M
FUSE BLOCK Ð Junction Box (J/B)

Terminal Arrangement
CEL141M
FUSE AND FUSIBLE LINK BOX

Engine coolant temperature sensor
(ECTS) .............................................. EC-1092
Engine oil filter replacement ................. MA-1013
Engine oil replacement ......................... MA-1012
Engine removal ..................................... EM-1064
Engine serial number ............................. GI-1008
F
F/FOG - Wiring diagram ........................ EL-1052
Final drive disassembly .............. PD-1004, 1005
Fluid temperature sensor (A/T) ............. AT-1081
Fluids .................................................... MA-1008
Flywheel runout .................................... EM-1095
Fog lamp, front ...................................... EL-1052
Fog lamp, rear ....................................... EL-1053
Forward clutch ....................................... AT-1167
Front axle .............................................. FA-1002
Front final drive disassembly (4WD) .... PD-1004
Front fog lamp ....................................... EL-1052
Front passenger air bag ....................... RS-1003
Front seat .............................................. BT-1006
Front washer .......................................... EL-1098
Front wiper ............................................. EL-1098
Fuel cut control (at no load & high
engine speed) ................................... EC-1021
Fuel filter replacement .......................... MA-1017
Fuel gauge ............................................. EL-1073
Fuel injection system ............................ EC-1019
Fuel line inspection ............................... MA-1018
Fuel precautions ..................................... GI-1002
Fuse block ............................................. EL-1229
Fuse ....................................................... EL-1230
Fusible link ............................................. EL-1230
G
GLOW - Wiring diagram ....................... EC-1221
Gauges .................................................. EL-1073
Glow plug .............................................. EC-1221
Glow relay ............................................. EC-1221
Grease ........................................ MA-1008, 1016
Ground distribution ................................ EL-1013
H
HEAT UP - Wiring diagram .................. EC-1242
HEATER - Wiring diagram .................... HA-1005
HLC - Wiring diagram ............................ EL-1099
HORN - Wiring diagram ........................ EL-1100
Harness layout ....................................... EL-1191
Hazard warning lamp ............................ EL-1058
Headlamp washer .................................. EL-1099
Headlamp wiper ..................................... EL-1099
Headlamp .............................................. EL-1044
Heat up switch ...................................... EC-1241
High clutch ............................................. AT-1165Horn ....................................................... EL-1100
How to erase DTC for OBD system ..... EC-1032
I
ILL - Wiring diagram .............................. EL-1061
Identification plate .................................. GI-1008
Idle speed ............................................. EC-1049
Illumination ............................................. EL-1060
Injection nozzle ..................................... EC-1023
Intake manifold ..................................... EM-1012
Interior lamp ........................................... EL-1067
Interior ................................................... BT-1004
J
Junction box (J/B) .................................. EL-1229
L
License lamp ......................................... EL-1046
Lifting points ........................................... GI-1009
Line pressure solenoid valve ................ AT-1086
Line pressure test (A/T) ........................ AT-1044
Liquid gasket application ...................... EM-1003
Location of electrical units ..................... EL-1185
Low and reverse brake ......................... AT-1171
Lubricants ............................................. MA-1008
Luggage room lamp .............................. EL-1067
M
MAFS - Wiring diagram ........................ EC-1086
MAIN - Wiring diagram ......................... EC-1077
MAJOR OVERHALL .............................. AT-1129
METER - Wiring diagram ...................... EL-1073
Maintenance (engine) ........................... MA-1011
Malfunction indicator lamp (MIL) .......... EC-1033
Manifold tightening torque (intake &
exhaust) ............................................ MA-1011
Mass air flow sensor (MAFS) ............... EC-1086
Meter ...................................................... EL-1073
Mirror, door ............................................ BT-1007
Mirror, outside ....................................... BT-1007
Model variation ....................................... GI-1005
N
NATS (Nissan Anti-theft System) .......... EL-1163
NATS - Wiring diagram ......................... EL-1166
NVH troubleshooting (EM) ................... EM-1008
ALPHABETICAL INDEX
IDX-1003