engine INFINITI FX35 2005 Service Manual

EC-8Revision: 2005 July 2005 FX
VK45DE
INDEX FOR DTC .....................................................707
DTC No. Index ..................................................... .707
Alphabetical Index ............................................... .711
PRECAUTIONS ...................................................... .715
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .............................................................. .715
On Board Diagnostic (OBD) System of Engine and
A/T ....................................................................... .715
Precaution ........................................................... .715
PREPARATION ...................................................... .719
Special Service Tools .......................................... .719
Commercial Service Tools ................................... .720
ENGINE CONTROL SYSTEM ............................... .721
System Diagram .................................................. .721
Multiport Fuel Injection (MFI) System .................. .722
Electronic Ignition (EI) System ............................ .724
Fuel Cut Control (at No Load and High Engine
Speed) ................................................................. .725
AIR CONDITIONING CUT CONTROL ................... .726
Input/Output Signal Chart .................................... .726
System Description .............................................. .726
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .727
System Description .............................................. .727
Component Description ....................................... .728
CAN COMMUNICATION ........................................ .729
System Description .............................................. .729
EVAPORATIVE EMISSION SYSTEM .................... .730
Description ........................................................... .730
Component Inspection ......................................... .733
Removal and Installation ..................................... .734
How to Detect Fuel Vapor Leakage ..................... .734
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ................................................................... .737
System Description .............................................. .737
Diagnostic Procedure .......................................... .738
Component Inspection ......................................... .740
POSITIVE CRANKCASE VENTILATION .............. .742
Description ........................................................... .742
Component Inspection ......................................... .742
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ..................................................................... .744
Description ........................................................... .744
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......... .745
Introduction .......................................................... .745
Two Trip Detection Logic ..................................... .745
Emission-Related Diagnostic Information ............ .746
Malfunction Indicator Lamp (MIL) ........................ .760
OBD System Operation Chart ............................. .764
BASIC SERVICE PROCEDURE ............................ .769
Basic Inspection .................................................. .769
Idle Speed and Ignition Timing Check ................. .774
Idle Mixture Ratio Adjustment .............................. .775
VIN Registration .................................................. .786
Accelerator Pedal Released Position Learning ... .786
Throttle Valve Closed Position Learning .............. .786 Idle Air Volume Learning ......................................
.787
Fuel Pressure Check ........................................... .789
TROUBLE DIAGNOSIS ......................................... .791
Trouble Diagnosis Introduction ............................ .791
DTC Inspection Priority Chart .............................. .797
Fail-Safe Chart ..................................................... .799
Symptom Matrix Chart ......................................... .800
Engine Control Component Parts Location .......... .804
Vacuum Hose Drawing ........................................ .810
Circuit Diagram .................................................... .811
ECM Harness Connector Terminal Layout ........... .813
ECM Terminals and Reference Value .................. .813
CONSULT-II Function (ENGINE) ......................... .822
Generic Scan Tool (GST) Function ...................... .835
CONSULT-II Reference Value in Data Monitor .... .838
Major Sensor Reference Graph in Data Monitor
Mode .................................................................... .842
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .844
Description ........................................................... .844
Testing Condition ................................................. .844
Inspection Procedure ........................................... .844
Diagnostic Procedure ........................................... .845
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT ...................................................................... .854
Description ........................................................... .854
Diagnostic Procedure ........................................... .854
POWER SUPPLY AND GROUND CIRCUIT .......... .855
Wiring Diagram .................................................... .855
Diagnostic Procedure ........................................... .856
Ground Inspection ................................................ .861
DTC U1000, U1001 CAN COMMUNICATION LINE .862
Description ........................................................... .862
On Board Diagnosis Logic ................................... .862
DTC Confirmation Procedure ............................... .862
Wiring Diagram .................................................... .863
Diagnostic Procedure ........................................... .864
DTC P0011, P0021 IVT CONTROL ........................ .865
Description ........................................................... .865
CONSULT-II Reference Value in Data Monitor Mode .866
On Board Diagnosis Logic ................................... .866
DTC Confirmation Procedure ............................... .867
Wiring Diagram .................................................... .868
Diagnostic Procedure ........................................... .871
Component Inspection ......................................... .875
Removal and Installation ...................................... .876
DTC P0031, P0032, P0051, P0052 HO2S1 HEATER .877
Description ........................................................... .877
CONSULT-II Reference Value in Data Monitor Mode .877
On Board Diagnosis Logic ................................... .877
DTC Confirmation Procedure ............................... .878
Wiring Diagram .................................................... .879
Diagnostic Procedure ........................................... .882
Component Inspection ......................................... .884
Removal and Installation ...................................... .884
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .885
Description ........................................................... .885
CONSULT-II Reference Value in Data Monitor Mode

EC-12Revision: 2005 July 2005 FX
Component Inspection .........................................
11 5 5
Removal and Installation ..................................... 11 5 5
DTC P1124, P1126 THROTTLE CONTROL MOTOR
RELAY .................................................................... 115 6
Component Description ....................................... 11 5 6
CONSULT-II Reference Value in Data Monitor Mode 11 5 6
On Board Diagnosis Logic ................................... 11 5 6
DTC Confirmation Procedure .............................. 11 5 6
Wiring Diagram .................................................... 11 5 8
Diagnostic Procedure .......................................... 11 5 9
DTC P1128 THROTTLE CONTROL MOTOR ........ 116 1
Component Description ....................................... 11 6 1
On Board Diagnosis Logic ................................... 11 6 1
DTC Confirmation Procedure .............................. 11 6 1
Wiring Diagram .................................................... 11 6 2
Diagnostic Procedure .......................................... 11 6 3
Component Inspection ......................................... 11 6 4
Removal and Installation ..................................... 11 6 5
DTC P1140, P1145 IVT CONTROL POSITION SEN-
SOR ........................................................................ 116 6
Component Description ....................................... 11 6 6
CONSULT-II Reference Value in Data Monitor Mode 11 6 6
On Board Diagnosis Logic ................................... 11 6 6
DTC Confirmation Procedure .............................. 11 6 6
Wiring Diagram .................................................... 11 6 7
Diagnostic Procedure .......................................... 11 7 0
Component Inspection ......................................... 11 7 3
Removal and Installation ..................................... 11 7 3
DTC P1143, P1163 HO2S1 .................................... 117 4
Component Description ....................................... 11 7 4
CONSULT-II Reference Value in Data Monitor Mode 11 7 4
On Board Diagnosis Logic ................................... 11 7 4
DTC Confirmation Procedure .............................. 11 7 5
Overall Function Check ....................................... 11 7 6
Diagnostic Procedure .......................................... 11 7 6
Component Inspection ......................................... 11 7 8
Removal and Installation ..................................... 11 7 9
DTC P1144, P1164 HO2S1 .................................... 118 0
Component Description ....................................... 11 8 0
CONSULT-II Reference Value in Data Monitor Mode 11 8 0
On Board Diagnosis Logic ................................... 11 8 0
DTC Confirmation Procedure .............................. 11 8 1
Overall Function Check ....................................... 11 8 2
Diagnostic Procedure .......................................... 11 8 2
Component Inspection ......................................... 11 8 4
Removal and Installation ..................................... 11 8 6
DTC P1146, P1166 HO2S2 .................................... 118 7
Component Description ....................................... 11 8 7
CONSULT-II Reference Value in Data Monitor Mode 11 8 7
On Board Diagnosis Logic ................................... 11 8 7
DTC Confirmation Procedure .............................. 11 8 8
Overall Function Check ....................................... 11 8 8
Wiring Diagram .................................................... 11 9 0
Diagnostic Procedure .......................................... 11 9 3 Component Inspection .........................................
11 9 6
Removal and Installation ...................................... 11 9 7
DTC P1147, P1167 HO2S2 .................................... 11 98
Component Description ....................................... 11 9 8
CONSULT-II Reference Value in Data Monitor Mode 11 9 8
On Board Diagnosis Logic ................................... 11 9 8
DTC Confirmation Procedure ............................... 11 9 9
Overall Function Check ........................................ 11 9 9
Wiring Diagram .................................................... 1201
Diagnostic Procedure ........................................... 1204
Component Inspection ......................................... 1207
Removal and Installation ...................................... 1208
DTC P1148, P1168 CLOSED LOOP CONTROL ... 1209
On Board Diagnosis Logic ................................... 1209
DTC Confirmation Procedure (Up To Serial 400595
Except for Serial 400590) .................................... 1209
DTC Confirmation Procedure (For Serial 400590
and From Serial 400596) ..................................... 1210
Overall Function Check (Up To Serial 400595
Except for Serial 400590) .................................... 1210
Diagnostic Procedure ........................................... 1210
DTC P1211 TCS CONTROL UNIT ......................... 1211
Description ........................................................... 1211
On Board Diagnosis Logic ................................... 1211
DTC Confirmation Procedure ............................... 1211
Diagnostic Procedure ........................................... 1211
DTC P1212 TCS COMMUNICATION LINE ............ 1212
Description ........................................................... 1212
On Board Diagnosis Logic ................................... 1212
DTC Confirmation Procedure ............................... 1212
Diagnostic Procedure ........................................... 1212
DTC P1217 ENGINE OVER TEMPERATURE ....... 1213
Description ........................................................... 1213
CONSULT-II Reference Value in Data Monitor Mode 1214
On Board Diagnosis Logic ................................... 1214
Overall Function Check ........................................ 1215
Wiring Diagram .................................................... 1217
Diagnostic Procedure ........................................... 1219
Main 13 Causes of Overheating .......................... 1223
Component Inspection ......................................... 1224
DTC P1225 TP SENSOR ....................................... 1225
Component Description ....................................... 1225
On Board Diagnosis Logic ................................... 1225
DTC Confirmation Procedure ............................... 1225
Diagnostic Procedure ........................................... 1226
Removal and Installation ...................................... 1226
DTC P1226 TP SENSOR ....................................... 1227
Component Description ....................................... 1227
On Board Diagnosis Logic ................................... 1227
DTC Confirmation Procedure ............................... 1227
Diagnostic Procedure ........................................... 1228
Removal and Installation ...................................... 1228
DTC P1229 SENSOR POWER SUPPLY ............... 1229
On Board Diagnosis Logic ................................... 1229
DTC Confirmation Procedure ............................... 1229
Wiring Diagram .................................................... 1230
Diagnostic Procedure ........................................... 1231

EC-14Revision: 2005 July 2005 FX
Diagnostic Procedure ..........................................
1305
Component Inspection ......................................... 1307
Removal and Installation ..................................... 1308
DTC P2127, P2128 APP SENSOR ........................ 1309
Component Description ....................................... 1309
CONSULT-II Reference Value in Data Monitor Mode 1309
On Board Diagnosis Logic ................................... 1309
DTC Confirmation Procedure .............................. 1310
Wiring Diagram .................................................... 1311
Diagnostic Procedure .......................................... 1312
Component Inspection ......................................... 1315
Removal and Installation ..................................... 1315
DTC P2135 TP SENSOR ....................................... 1316
Component Description ....................................... 1316
CONSULT-II Reference Value in Data Monitor Mode 1316
On Board Diagnosis Logic ................................... 1316
DTC Confirmation Procedure .............................. 1317
Wiring Diagram .................................................... 1318
Diagnostic Procedure .......................................... 1319
Component Inspection ......................................... 1322
Removal and Installation ..................................... 1322
DTC P2138 APP SENSOR .................................... 1323
Component Description ....................................... 1323
CONSULT-II Reference Value in Data Monitor Mode 1323
On Board Diagnosis Logic ................................... 1323
DTC Confirmation Procedure .............................. 1324
Wiring Diagram .................................................... 1325
Diagnostic Procedure .......................................... 1326
Component Inspection ......................................... 1330
Removal and Installation ..................................... 1330
VARIABLE INDUCTION AIR CONTROL SYSTEM
(VIAS) ..................................................................... 1331
Description ........................................................... 1331
CONSULT-II Reference Value in Data Monitor Mode 1332
Wiring Diagram .................................................... 1333
Diagnostic Procedure .......................................... 1334
Component Inspection ......................................... 1337
Removal and Installation ..................................... 1338
IGNITION SIGNAL ................................................. 1339
Component Description ....................................... 1339
Wiring Diagram .................................................... 1340
Diagnostic Procedure .......................................... 1345
Component Inspection ......................................... 1349
Removal and Installation ..................................... 1350
INJECTOR CIRCUIT .............................................. 1351
Component Description ....................................... 1351
CONSULT-II Reference Value in Data Monitor Mode 1351
Wiring Diagram .................................................... 1352
Diagnostic Procedure .......................................... 1353
Component Inspection ......................................... 1357
Removal and Installation ..................................... 1357
FUEL PUMP CIRCUIT ........................................... 1358
Description ........................................................... 1358
CONSULT-II Reference Value in Data Monitor Mode 1358
Wiring Diagram .................................................... 1359
Diagnostic Procedure ........................................... 1360
Component Inspection ......................................... 1363
Removal and Installation ...................................... 1363
REFRIGERANT PRESSURE SENSOR ................. 1364
Component Description ....................................... 1364
Wiring Diagram .................................................... 1365
Diagnostic Procedure ........................................... 1366
Removal and Installation ...................................... 1368
ELECTRICAL LOAD SIGNAL ............................... 1369
Description ........................................................... 1369
CONSULT-II Reference Value in Data Monitor Mode 1369
Diagnostic Procedure ........................................... 1369
ICC BRAKE SWITCH ............................................. 1370
Component Description ....................................... 1370
CONSULT-II Reference Value in Data Monitor Mode 1370
Wiring Diagram .................................................... 1371
Diagnostic Procedure ........................................... 1372
Component Inspection ......................................... 1377
ASCD BRAKE SWITCH ......................................... 1378
Component Description ....................................... 1378
CONSULT-II Reference Value in Data Monitor Mode 1378
Wiring Diagram .................................................... 1379
Diagnostic Procedure ........................................... 1380
Component Inspection ......................................... 1384
ASCD INDICATOR ................................................. 1385
Component Description ....................................... 1385
CONSULT-II Reference Value in Data Monitor Mode
1385
Wiring Diagram .................................................... 1386
Diagnostic Procedure ........................................... 1387
SNOW MODE SWITCH .......................................... 1388
Description ........................................................... 1388
CONSULT-II Reference Value in the Data Monitor
Mode .................................................................... 1388
Wiring Diagram .................................................... 1389
Diagnostic Procedure ........................................... 1390
Component Inspection ......................................... 1392
MIL AND DATA LINK CONNECTOR ..................... 1393
Wiring Diagram .................................................... 1393
SERVICE DATA AND SPECIFICATIONS (SDS) ... 1395
Fuel Pressure ....................................................... 1395
Idle Speed and Ignition Timing ............................. 1395
Calculated Load Value ......................................... 1395
Mass Air Flow Sensor .......................................... 1395
Intake Air Temperature Sensor ............................ 1395
Engine Coolant Temperature Sensor ................... 1395
Fuel Tank Temperature Sensor ............................ 1395
Crankshaft Position Sensor (POS) ...................... 1395
Camshaft Position Sensor (PHASE) .................... 1395
Heated Oxygen Sensor 1 Heater ......................... 1395
Heated Oxygen sensor 2 Heater ......................... 1396
Throttle Control Motor .......................................... 1396
Injector ................................................................. 1396
Fuel Pump ............................................................ 1396

EC-16
[VQ35DE]
INDEX FOR DTC
Revision: 2005 July 2005 FX
P0302 0302 CYL 2 MISFIRE EC-285
P0303 0303 CYL 3 MISFIREEC-285
P0304 0304 CYL 4 MISFIREEC-285
P0305 0305 CYL 5 MISFIREEC-285
P0306 0306 CYL 6 MISFIREEC-285
P0327 0327 KNOCK SEN/CIRC-B1EC-295
P0328 0328 KNOCK SEN/CIRC-B1EC-295
P0335 0335 CKP SEN/CIRCUITEC-300
P0340 0340 CMP SEN/CIRC-B1EC-307
P0345 0345 CMP SEN/CIRC-B2EC-307
P0420 0420 TW CATALYST SYS-B1EC-316
P0430 0430 TW CATALYST SYS-B2EC-316
P0441 0441 EVAP PURG FLOW/MONEC-322
P0442 0442 EVAP SMALL LEAKEC-327
P0444 0444 PURG VOLUME CONT/VEC-336
P0445 0445 PURG VOLUME CONT/VEC-336
P0447 0447 VENT CONTROL VALVEEC-343
P0451 0451 EVAP SYS PRES SENEC-350
P0452 0452 EVAP SYS PRES SENEC-353
P0453 0453 EVAP SYS PRES SENEC-359
P0455 0455 EVAP GROSS LEAKEC-367
P0456 0456 EVAP VERY SML LEAKEC-375
P0460 0460 FUEL LEV SEN SLOSHEC-385
P0461 0461 FUEL LEVEL SENSOREC-387
P0462 0462 FUEL LEVL SEN/CIRCEC-389
P0463 0463 FUEL LEVL SEN/CIRCEC-389
P0500 0500
VEH SPEED SEN/CIRC*5EC-391
P0506 0506 ISC SYSTEM EC-393
P0507 0507 ISC SYSTEMEC-395
P0550 0550 PW ST P SEN/CIRCEC-397
P0605 0605 ECMEC-402
P0700 0700 TCM AT- 11 3
P0705 0705 PNP SW/CIRCAT- 11 4
P0710 0710 ATF TEMP SEN/CIRCAT-136
P0720 0720
VEH SPD SEN/CIR AT*5AT- 11 8
P0725 0725 ENGINE SPEED SIG AT-123
P0740 0740 TCC SOLENOID/CIRCAT-125
P0744 0744 A/T TCC S/V FNCTNAT-127
P0745 0745 L/PRESS SOL/CIRCAT-129
P1031 1031 A/F SEN1 HTR (B1)EC-405
P1032 1032 A/F SEN1 HTR (B1)EC-405
P1051 1051 A/F SEN1 HTR (B2)EC-405
DTC*1
Items
(CONSULT-II screen terms) Reference page
CONSULT-II
GST*
2ECM*3

EC-20
[VQ35DE]
INDEX FOR DTC
Revision: 2005 July 2005 FX
CTP LEARNING P1225 1225 EC-479
CTP LEARNING P1226 1226EC-481
CYL 1 MISFIRE P0301 0301EC-285
CYL 2 MISFIRE P0302 0302EC-285
CYL 3 MISFIRE P0303 0303EC-285
CYL 4 MISFIRE P0304 0304EC-285
CYL 5 MISFIRE P0305 0305EC-285
CYL 6 MISFIRE P0306 0306EC-285
D/C SOLENOID/CIRC P1762 1762 AT-158
D/C SOLENOID FNCTN P1764 1764AT-160
ECM P0605 0605EC-402
ECM BACK UP/CIRCUIT P1065 1065EC-413
ECT SEN/CIRCUIT P0117 0117EC-208
ECT SEN/CIRCUIT P0118 0118EC-208
ECT SENSOR P0125 0125EC-220
ENG OVER TEMP P1217 1217EC-467
ENGINE SPEED SIG P0725 0725 AT-123
ETC ACTR P1121 1121EC-424
ETC FUNCTION/CIRC P1122 1122EC-426
E T C M O T P 11 2 8 11 2 8EC-437
ETC MOT PWR P1124 1124EC-432
ETC MOT PWR P1126 1126EC-432
EVAP GROSS LEAK P0455 0455EC-367
EVAP PURG FLOW/MON P0441 0441EC-322
EVAP SMALL LEAK P0442 0442EC-327
EVAP SYS PRES SEN P0451 0451EC-350
EVAP SYS PRES SEN P0452 0452EC-353
EVAP SYS PRES SEN P0453 0453EC-359
EVAP VERY SML LEAK P0456 0456EC-375
FR/B SOLENOID/CIRC P1757 1757 AT-154
FR/B SOLENOID FNCT P1759 1759AT-156
FTT SEN/CIRCUIT P0182 0182EC-273
FTT SEN/CIRCUIT P0183 0183EC-273
FTT SENSOR P0181 0181EC-267
FUEL LEV SEN SLOSH P0460 0460EC-385
FUEL LEVEL SENSOR P0461 0461EC-387
FUEL LEVL SEN/CIRC P0462 0462EC-389
FUEL LEVL SEW/CIRC P0463 0463EC-389
FUEL SYS-LEAN-B1 P0171 0171EC-248
FUEL SYS-LEAN-B2 P0174 0174EC-248
FUEL SYS-RICH-B1 P0172 0172EC-258
FUEL SYS-RICH-B2 P0175 0175EC-258
Items
(CONSULT-II screen terms) DTC*
1
Reference page
CONSULT-II
GST*
2ECM*3

PRECAUTIONS EC-23
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ABS00A2R
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
On Board Diagnostic (OBD) System of Engine and A/TABS006JZ
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MIL to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-74, "
HAR-
NESS CONNECTOR" .

Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MIL to light up due to the short circuit.

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to the malfunction of the EVAP system or fuel injection system,
etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PrecautionABS006K0

Always use a 12 volt battery as power source.

Do not attempt to disconnect battery cables while engine is
running.

Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative
battery cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned OFF.

Before removing parts, turn ignition switch OFF and then
disconnect negative battery cable.
SEF289H

EC-24
[VQ35DE]
PRECAUTIONS
Revision: 2005 July 2005 FX

Do not disassemble ECM.

If a battery cable is disconnected, the memory will return to
the ECM value.
The ECM will now start to self-control at its initial value.
Engine operation can vary slightly when the terminal is dis-
connected. However, this is not an indication of a malfunc-
tion. Do not replace parts because of a slight variation.

If the battery is disconnected, the following emission-related diagnostic information will be lost
within 24 hours.
–Diagnostic trouble codes
–1st trip diagnostic trouble codes
–Freeze frame data
–1st trip freeze frame data
–System readiness test (SRT) codes
–Test values

When connecting ECM harness connector, fasten it
securely with a lever as far as it will go as shown in the fig-
ure.

When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.

Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in coil and condenser, thus resulting in
damage to ICs.

Keep engine control system harness at least 10 cm (4 in)
away from adjacent harness, to prevent engine control sys-
tem malfunctions due to receiving external noise, degraded
operation of ICs, etc.

Keep engine control system parts and harness dry.
PBIB1164E
PBIB1512E
PBIB0090E

EC-26
[VQ35DE]
PRECAUTIONS
Revision: 2005 July 2005 FX

B1 indicates the bank 1, B2 indicates the bank 2 as shown
in the figure.

Do not operate fuel pump when there is no fuel in lines.

Tighten fuel hose clamps to the specified torque.

Do not depress accelerator pedal when starting.

Immediately after starting, do not rev up engine unneces-
sarily.

Do not rev up engine just prior to shutdown.

When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on installation location.
–Keep the antenna as far as possible from the electronic
control units.
–Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
–Adjust the antenna and feeder line so that the standing-
wave radio can be kept smaller.
–Be sure to ground the radio to vehicle body.
SEC893C
PBIB1569E
SEF709Y
SEF708Y

PREPARATION EC-27
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
PREPARATIONPFP:00002
Special Service ToolsABS006K2
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
EG17650301
(J-33984-A)
Radiator cap tester
adapter Adapting radiator cap tester to radiator cap and
radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
KV10117100
(J-36471-A)
Heated oxygen
sensor wrench Loosening or tightening heated oxygen sensor
with 22 mm (0.87 in) hexagon nut
KV10114400
(J-38365)
Heated oxygen
sensor wrench Loosening or tightening air fuel ratio (A/F) sensor
a: 22 mm (0.87 in)
(J-44321)
Fuel pressure gauge
kit Checking fuel pressure
(J-44321-6)
Fuel pressure adapter Connecting fuel pressure gauge to quick
connector type fuel lines.
(J-44626)
Air fuel ratio (A/F)
sensor wrench Loosening or tightening air fuel ratio (A/F) sensor
1
(J-45488)
Quick connector
release Remove fuel tube quick connectors in engine
room.
S-NT564
S-NT379
S-NT636
LEC642
LBIA0376E
LEM054
PBIC0198E

PREPARATION EC-29
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
Commercial Service ToolsABS006K3
Tool name
(Kent-Moore No.) Description
Leak detector
i.e.: (J-41416) Locating EVAP leak
EVAP service port
adapter
i.e.: (J-41413-OBD) Applying positive pressure through EVAP service
port
Fuel filler cap adapter
i.e.: (MLR-8382) Checking fuel tank vacuum relief valve opening
pressure
Socket wrench Removing and installing engine coolant temperature sensor
Oxygen sensor thread
cleaner
i.e.: (J-43897-18)
(J-43897-12) Reconditioning the exhaust system threads
before installing a new oxygen sensor. Use with
anti-seize lubricant shown below.
a: 18 mm diameter with pitch 1.5 mm for
Zirconia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for
Titania Oxygen Sensor
Anti-seize lubricant
i.e.: (Permatex
TM
133AR or equivalent
meeting MIL
specification MIL-A-
907) Lubricating oxygen sensor thread cleaning tool
when reconditioning exhaust system threads.
S-NT703
S-NT704
S-NT815
S-NT705
AEM488
S-NT779