Infiniti QX4 (R50). Manual — part 437
Attachment No.14
TID
CID
P0420
01H
01H
Max.
X
-
P0420
02H
81H
Min.
X
-
P0430
03H
02H
Max.
X
-
P0430
04H
82H
Min.
X
-
P0440
05H
03H
Max.
X
-
P1440
★
1
05H
03H
Max.
X
-
EVAP control system purge flow monitoring
P1447
06H
83H
Min.
X
mV
EVAP control system (Very small leak)
P1441
★
2
07H
03H
Max.
X
-
P0133
09H
04H
Max.
X
ms
P0131
0AH
84H
Min.
X
mV
P0130
0BH
04H
Max.
X
mV
P0132
0CH
04H
Max.
X
mV
P0134
0DH
04H
Max.
X
s
P0153
11H
05H
Max.
X
ms
P0151
12H
85H
Min.
X
mV
P0150
13H
05H
Max.
X
mV
P0152
14H
05H
Max.
X
mV
P0154
15H
05H
Max.
X
s
P0139
19H
86H
Min.
X
mV/500ms
P0137
1AH
86H
Min.
X
mV
P0140
1BH
06H
Max.
X
mV
P0138
1CH
06H
Max.
X
mV
P0159
21H
87H
Min.
X
mV/500ms
P0157
22H
87H
Min.
X
mV
P0160
23H
07H
Max.
X
mV
P0158
24H
07H
Max.
X
mV
P0135
29H
08H
Max.
X
mV
P0135
2AH
88H
Min.
X
mV
P0155
2BH
09H
Max.
X
mV
P0155
2CH
89H
Min.
X
mV
P0141
2DH
0AH
Max.
X
mV
P0141
2EH
8AH
Min.
X
mV
P0161
2FH
0BH
Max.
X
mV
P0161
30H
8BH
Min.
X
mV
TEST VALUE AND TEST LIMIT (GST ONLY — NOT APPLICABLE TO CONSULT-II)
The following is the information specified in Mode 6 of SAE J1979.
The test value is a parameter used to determine whether a system/circuit diagnostic test is “OK” or “NG” while
being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the
maximum or minimum value and is compared with the test value being monitored.
Items for which these data (test value and test limit) are displayed are the same as SRT code items.
These data (test value and test limit) are specified by Test ID (TID) and Component ID (CID) and can be dis-
played on the GST screen.
: Applicable ・: Not applicable
SRT item
Self-diagnostic test item
DTC
Test value
(GST display) Te s t limit Application
Unit
CATALYST
Three way catalyst function (Bank 1)
Three way catalyst function (Bank 2)
EVAP SYSTEM
EVAP control system (Small leak)
HO2S
Heated oxygen sensor 1(Bank 1)
Heated oxygen sensor 1(Bank 2)
Heated oxygen sensor 2(Bank 1)
Heated oxygen sensor 2(Bank 2)
HO2S HTR
Heated oxygen sensor 1 heater(Bank 1)
Heated oxygen sensor 2 heater(Bank 2)
Heated oxygen sensor 2 heater(Bank 1)
Heated oxygen sensor 2 heater(Bank 2)
★
1:Except models D22 VG33E engine, WD22 VG33E engine, R50 VQ35DE engine, JR50 VQ35DE engine 2001
★
2:Except models A33 VQ30DE engine, CA33 VQ30DE engine 2001MY.
GENERAL INFORMATION
CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . ...3
Precautions . . . . . . . . . . . . . . . . ..3
PRECAUTIONS FOR SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
. . . . . . . . .3
PRECAUTIONS FOR IVIS (INFINITI VEHICLE
IMMOBILIZER SYSTEM - NATS)
PRECAUTIONS FOR INFINITI COMMUNICATOR
(IVCS)
. . . . . . . . . . . . . . . . . ...4
. . . . . . . . . . .5
PRECAUTIONS FOR MULTIPORT FUEL
INJECTION SYSTEM OR ENGINE CONTROL
SYSTEM
. . . . . . . . . . . . . . . . ...6
PRECAUTIONS FOR THREE WAY CATALYST
. . ...6
. . . . . . . . . .7
. . . . . . ...8
. . . . . . . . . . 8
PRECAUTIONS FOR AIR CONDITIONING
. . . . ..8
HOW TO USE THIS MANUAL. . . . . . . . . . 9
HOW TO READ WIRING DIAGRAMS. . . . . . .. 11
Sample/Wiring Diagram - EXAMPL - . . . . . . 11
. . . . . . . . . . . . ..12
Description . . . . . . . . . . . . . . . . .13
. . . . . . . . . . .15
. . . . . . . . . . ...16
. . . . . . . . . ..16
. . . . . . . . . . . ...16
DETECTABLE LINES AND NON-DETECTABLE
LINES
. . . . . . . . . . . . . . . . . .17
. . . . . . . . . . . . .18
. . . . . . . . . . . . .19
HOW TO CHECK TERMINAL . . . . . . . . . ...21
Connector and Terminal Pin Kit. . . . . . . . .21
How to Probe Connectors . . . . . . . . . . .21
. . . . . . . 21
. . . . . . ...21
How to Check Enlarged Contact Spring of
Terminal . . . . . . . . . . . . . . . . . .22
Waterproof Connector Inspection . . . . . . . ..23
. . . . . . . . ...23
. . . . . . . . . . 23
Terminal Lock Inspection . . . . . . . . . . ...23
HOW TO PERFORM EFFICIENT DIAGNOSIS
FOR AN ELECTRICAL INCIDENT . . . . . . . ...24
Work Flow. . . . . . . . . . . . . . . . ..24
Incident Simulation Tests. . . . . . . . . . ...25
. . . . . . . . . . . . . ..25
. . . . . . . . . . . ..25
. . . . . . . . . . . . . 26
. . . . . . . . . . . . . . . ..26
. . . . . . . . . . . . 27
. . . . . . . . . . . . .27
Circuit Inspection . . . . . . . . . . . . . ...27
. . . . . . . . . . . . . ..27
. . . . 28
. . . ..29
. . . . . . . . . . ...30
. . . . . . . . . . ..30
. . . . . . . ...32
HOW TO FOLLOW TROUBLE DIAGNOSIS . . . . 34
How to Follow Test Groups in Trouble Diagnosis . .35
Key to Symbols Signifying Measurements or
Procedures. . . . . . . . . . . . . . . . .36
CONSULT-II CHECKING SYSTEM . . . . . . . ...38
Function and System Application . . . . . . . ..38
Nickel Metal Hydride Battery Replacement. . . ...39
Checking Equipment. . . . . . . . . . . . ..39
CONSULT-II Data Link Connector (DLC) Circuit . ..40
. . . . . . . . . .40
IDENTIFICATION INFORMATION . . . . . . . . 41
Model Variation . . . . . . . . . . . . . . ..41
PREFIX AND SUFFIX DESIGNATIONS
. . . . . .41
Identification Number. . . . . . . . . . . . .41
VEHICLE IDENTIFICATION NUMBER
ARRANGEMENT
. . . . . . . . . . . . . .42
. . . . ...43
. . . . . . . . ..43
Dimensions . . . . . . . . . . . . . . . . 43
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
Wheels & Tires . . . . . . . . . . . . . . ..44
LIFTING POINTS AND TOW TRUCK TOWING . . ...45
Screw Jack . . . . . . . . . . . . . . . . 45
Garage Jack and Safety Stand . . . . . . . . .46
2-pole Lift . . . . . . . . . . . . . . . . ...47
Tow Truck Towing . . . . . . . . . . . . . ..47
. . . . . . . . . . . . . . .48
. . . . . . . . . . . . . . .48
. . . . . . . . . . . ..49
TIGHTENING TORQUE OF STANDARD BOLTS . . 50
SAE J1930 TERMINOLOGY LIST . . . . . . . . 51
SAE J1930 Terminology List . . . . . . . . . .51
CONTENTS
(Cont’d)
GI-2
Precautions
NBGI0001
Observe the following precautions to ensure safe and proper
servicing. These precautions are not described in each indi-
vidual section.
SGI646
PRECAUTIONS FOR SUPPLEMENTAL RESTRAINT
SYSTEM (SRS) “AIR BAG” AND “SEAT BELT
PRE-TENSIONER”
NBGI0001S01
The Supplemental Restraint System such as “AIR BAG” and “SEAT
BELT PRE-TENSIONER” used along with a seat belt, helps to
reduce the risk or severity of injury to the driver and front passen-
ger for certain types of collision. The SRS system composition
which is available to INFINITI QX4 is as follows:
I
For a frontal collision
The Supplemental Restraint System consists of driver air bag
module (located in the center of the steering wheel), front pas-
senger air bag module (located on the instrument panel on
passenger side), seat belt pre-tensioners, a diagnosis sensor
unit, warning lamp, wiring harness and spiral cable.
I
For a side collision
The Supplemental Restraint System consists of side air bag
module (located in the outer side of front seat), satellite sensor,
diagnosis sensor unit (one of components of air bags for a
frontal collision), wiring harness, warning lamp (one of compo-
nents of air bags for a frontal collision).
Information necessary to service the system safely is included in
the RS section of this Service Manual.
WARNING:
I
To avoid rendering the SRS inoperative, which could
increase the risk of personal injury or death in the event
of a collision which would result in air bag inflation, all
maintenance must be performed by an authorized INFINITI
dealer.
I
Improper maintenance, including incorrect removal and
installation of the SRS, can lead to personal injury caused
by unintentional activation of the system. For removal of
Spiral Cable and Air Bag Module, see the RS section.
I
Do not use electrical test equipment on any circuit related
to the SRS unless instructed to in this Service Manual.
Spiral cable and wiring harnesses covered with yellow
insulation tape either just before the harness connectors
or for the complete harness are related to the SRS.
PRECAUTIONS FOR IVIS (INFINITI VEHICLE
IMMOBILIZER SYSTEM — NATS)
NBGI0001S08
IVIS (NATS) will immobilize the engine if someone tries to start it
without the registered key of IVIS (NATS).
Both of the originally supplied ignition key IDs have been IVIS
(NATS) registered.
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
PRECAUTIONS
Precautions
GI-3
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