2001 INFINITI QX4 navigation

Self-diagnosis
TROUBLE DIAGNOSIS PROCEDURE FOR SELF-DIAGNOSIS=NBHA0101SYMPTOM:
ISelf-diagnosis cannot be performed.
Inspection FlowNBHA0101S01Without Navigation SystemNBHA0101S0101
SHA250F
*1: HA-72
*2: HA-129
*3: HA-132*4: HA-135
*5: HA-139
*6: HA-141*7: HA-66
*8: HA-65
*9: HA-66
TROUBLE DIAGNOSES
Self-diagnosis
HA-124

With Navigation SystemNBHA0101S0102
RHA884H
*1: HA-72
*2: HA-129
*3: HA-132
*4: HA-135*5: HA-139
*6: HA-141
*7: HA-66*8: HA-65
*9: HA-66
*10: HA-142
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
SC
EL
IDX
TROUBLE DIAGNOSES
Self-diagnosis (Cont'd)
HA-125

Memory Function
TROUBLE DIAGNOSIS PROCEDURE FOR MEMORY FUNCTION=NBHA0102SYMPTOM:
IMemory function does not operate.
Inspection FlowNBHA0102S01Without Navigation SystemNBHA0102S0101
RHA885H
*1: HA-72 *2: HA-66 *3: HA-45
TROUBLE DIAGNOSES
Memory Function
HA-126

With Navigation SystemNBHA0102S0102
RHA886H
*1: HA-72 *2: HA-66 *3: HA-45
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
SC
EL
IDX
TROUBLE DIAGNOSES
Memory Function (Cont'd)
HA-127

ECON (ECONOMY) Mode
TROUBLE DIAGNOSIS PROCEDURE FOR ECON (ECONOMY) MODE=NBHA0103SYMPTOM:
IECON mode does not operate.
Inspection FlowNBHA0103S01Without Navigation SystemNBHA0103S0101
SHA920EA
*1: HA-72 *2: HA-66 *3: HA-45
TROUBLE DIAGNOSES
ECON (ECONOMY) Mode
HA-128

With Navigation SystemNBHA0103S0102
RHA887H
*1: HA-72 *2: HA-66 *3: HA-45
RHA050G
Ambient Sensor Circuit
COMPONENT DESCRIPTIONNBHA0039The ambient sensor is attached in front of the driver's side con-
denser. It detects ambient temperature and converts it into a resis-
tance value which is then input into the auto amplifier.
AMBIENT TEMPERATURE INPUT PROCESSNBHA0040The automatic amplifier includes a ªprocessing circuitº for the ambi-
ent sensor input. However, when the temperature detected by the
ambient sensor increases quickly, the processing circuit retards the
auto amp. function. It only allows the auto amp. to recognize an
ambient temperature increase of 0.33ÉC (0.6ÉF) per 100 seconds.
As an example, consider stopping for a cup of coffee after high
speed driving. Although the actual ambient temperature has not
changed, the temperature detected by the ambient sensor will
increase. This is because the heat from the engine compartment
can radiate to the front grille area, location of the ambient sensor.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
SC
EL
IDX
TROUBLE DIAGNOSES
ECON (ECONOMY) Mode (Cont'd)
HA-129

RHA888H
Multiplex Communication Circuit
DIAGNOSTIC PROCEDURENBHA0118SYMPTOM:
IA/C system does not come on.
IA/C system can not controlled.
1 CHECK CIRCUIT CONTINUITY BETWEEN DISPLAY & NAVI CONTROL UNIT AND AUTO AMP.
Check circuit continuity between each terminal on Display & Navigation control unit and on auto amp.
RHA889H
Continuity should exist.
If OK, check harness for short.
OK or NG
OK©GO TO 2.
NG©1. Repair harness or connector.
2. Go to ªOPERATIONAL CHECKº, HA-66.
Confirm that A/C system is in good order.
2 CHECK MULTI-PLEX COMMUNICATION SIGNAL
Do approx. 3.5 volts exist between Display & NAVI control unit harness terminal Nos. 37, 38 and body ground?
RHA890H
YesorNo
Ye s©GO TO 3.
No©1. Replace auto amp.
2. Go to ªOPERATIONAL CHECKº, HA-66.
Confirm that A/C system is in good order.
TROUBLE DIAGNOSES
Multiplex Communication Circuit
HA-142

LSV (Load sensing valve) ..............................BR-12
Lubricant (R134a) A/C..................................HA-146
Lubricants .......................................................MA-11
Lubrication circuit (engine) ...............................LC-3
Lubrication-locks, hinges and hood
latches ........................................................MA-27
Luggage room lamp ........................................EL-88
M
MAFS - Wiring diagram................................EC-154
Magnet clutch .......................................HA-104, 150
MAIN - Wiring diagram.................................EC-142
Main oil pump (Transfer)...............................TF-131
Mainshaft (Transfer) ......................................TF-125
Maintenance (engine) ....................................MA-13
MAJOR OVERHALL......................................AT-281
Major overhaul (Transfer) .............................TF-120
Malfunction indicator lamp (MIL) ....................EC-74
Mass air flow sensor (MAFS) .......................EC-150
Master cylinder (brake) ..................................BR-16
Meter ...............................................................EL-94
METER - Wiring diagram................................EL-99
MIL & Data link connectors circuit ...............EC-648
MIL/DL - Wiring diagram ..............................EC-648
MIRROR - Wiring diagram............................EL-177
Mirror defogger .............................................EL-151
Mirror, door......................................................BT-56
Mirror, out side ................................................BT-56
Misfire ...........................................................EC-320
Mode door control linkage adjustment ...........HA-81
Mode door motor ............................................HA-75
Model variation ................................................GI-41
Molding - See Exterior ....................................BT-35
MULTI - Wiring diagram ................................EL-274
Multi-remote control system..........................EL-270
Multiplex communication ..............................HA-142
Multiport fuel injection (MFI) system ..............EC-28
Multiport fuel injection precautions ....................GI-6
N
NATS (Nissan anti-theft system)...................EL-328
NATS (Nissan anti-theft system)
precautions ....................................................GI-3
NATS - Wiring diagram .................................EL-330
NAVI - wiring diagram ...................................EL-394
Navigation System ........................................EL-385
Neutral-4LO switch ........................................TF-112
NVH troubleshooting (AX) ..........................AX-3, 18
NVH troubleshooting (BR)................................BR-6
NVH troubleshooting (PD)................................PD-3
NVH troubleshooting (ST).................................ST-6
NVH troubleshooting (SU) .........................SU-3, 15O
Oil change (capacity) .....................................MA-11
Oil filter (Transfer) .........................................TF-118
Oil pan (engine) .............................................EM-15
Oil pressure (engine) ........................................LC-4
Oil pump (A/T) ...............................................AT-297
Oil pump (engine) .............................................LC-5
Oil pump regulator valve (engine) ....................LC-6
Oil seal replacement (engine)........................EM-35
Oil seal replacement (front final drive
4WD) ...........................................................PD-15
Oil seal replacement (front of final
drive) ...........................................................PD-40
On board diagnostic system ..........................EC-59
Out side mirror ................................................BT-56
Overdrive control switch ................................AT-263
Overrun clutch ...............................................AT-320
Overrun clutch solenoid valve .......................AT-189
P
P/ANT - Wiring diagram ................................EL-170
Park/Neutral position switch .........................EC-604
Park/neutral position switch (A/T) .........AT-103, 263
Parking brake control .....................................BR-30
Parking lamp ...................................................EL-61
PCV (positive crankcase ventilation) .............EC-38
PGC/V - Wiring diagram ......................EC-370, 544
PHASE - Wiring diagram .............................EC-342
Pinion bearing preload diff. ............................PD-25
Pinion gear height diff. .............................PD-25, 53
Piston assembly .............................................EM-71
Piston pin inspection ......................................EM-63
Piston ring inspection.....................................EM-64
Piston to bore clearance ................................EM-66
Planetary carrier (Transfer) ...........................TF-134
PNP/SW - Wiring diagram ...........................EC-607
POS - Wiring diagram ..................................EC-517
POWER - Wiring diagram...............................EL-10
Power antenna ..............................................EL-169
Power door lock ............................................EL-254
Power door mirror .........................................EL-177
Power seat ....................................................EL-181
Power steering fluid level .....................MA-27, ST-8
Power steering gear........................................ST-17
Power steering hydraulic pressure .................ST-10
Power steering oil pressure switch ..............EC-634
Power steering oil pump .................................ST-27
Power steering system bleeding.......................ST-9
Power supply routing ........................................EL-9
Power transistor & ignition coil.....................EC-499
Power window ...............................................EL-241
PRE/SE - Wiring diagram ............................EC-384
Precations for Leak detection dye ...................HA-3
Precautions (General) .......................................GI-5
Pressure test (A/T) ..........................................AT-62
Propeller shaft ..................................................PD-3
ALPHABETICAL INDEX
IDX-6