fuel pump INFINITI M35 2007 Factory Service Manual

COMBINATION METERS
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Revision: 2007 April2007 M35/M45
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by a variable ground signal supplied

from unified meter and A/C amp. terminal 58

through the fuel level sensor unit and fuel pump (main) terminals 5 and 2, and

through the fuel level sensor unit (sub) terminals 2 and 1

to unified meter and A/C amp. terminal 42.
Unified meter and A/C amp. provides a fuel level signal to combination meter for fuel gauge with communica-
tion line between unified meter and A/C amp. and combination meter.
ODO/TRIP METER

ABS actuator and electric unit (control unit) converses a pulse signal from wheel sensor to vehicle speed
signal, and transmits vehicle speed signal to unified meter and A/C amp. with CAN communication.

Unified meter and A/C amp. converses vehicle speed signal to 8 pulse signal, and transmits to combina-
tion meter.

Combination meter processes the 8 pulse signal and the memory signals from the meter memory circuit.
Then the mileage is displayed.
How to Change The Display For Odo/trip Meter
Operating the odo/trip meter switch allows switching the mode in the following order.

The odo/trip meter display switching and trip display resetting
can be identified by the time from pressing the odo/trip meter
switch (1) to releasing it.

When resetting with “trip A” displayed, only “trip A” display is
reset. (The same way for “trip B”.)
SEL175W
PKIB7633E

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COMBINATION METERS
Revision: 2007 April2007 M35/M45
4. CHECK FUEL LEVEL SENSOR (MAIN-SUB) CIRCUIT
1. Disconnect fuel level sensor unit and fuel pump (main) connec-
tor.
2. Check continuity between fuel level sensor unit (sub) harness
connector (A) and fuel level sensor unit and fuel pump (main)
harness connector (B).
3. Check continuity between fuel level sensor unit (sub) harness
connector (A) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK FUEL LEVEL SENSOR (MAIN) CIRCUIT
Check continuity between fuel level sensor unit and fuel pump
(main) harness connector (A) and unified meter and A/C amp. har-
ness connector (B).
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK INSTALLATION CONDITION
Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any of the
internal components in the fuel tank.
OK or NG
OK >> Replace unified meter and A/C amp.
NG >> Install the fuel level sensor unit properly.
AB
Continuity
Connector Terminal Connector Terminal
B52 2 B433 2 Yes
A
GroundContinuity
Connector Terminal
B52 2 No
PKIB7643E
AB
Continuity
Connector Terminal Connector Terminal
B4335 M6558Yes
PKIB7644E

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COMBINATION METERS
Revision: 2007 April2007 M35/M45
Electrical Components InspectionNKS003UD
CHECK FUEL LEVEL SENSOR UNIT
For removal, refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" .
Check Fuel Level Sensor Unit and Fuel Pump (Main)
Check resistance between terminals 2 and 5.
*1 and *2: When float rod is in contact with stopper.

If the results of check are NG, check the fuel level sensor unit
and fuel pump (main) harness. Refer to DI-26, "
Check Fuel
Level Sensor Unit and Pump (Main) Harness" .
Check Fuel Level Sensor Unit and Pump (Main) Harness
Check continuity at following terminals.

If the results of check are NG, replace fuel pump assembly. If the
results of check are OK, replace fuel level sensor unit.
Check Fuel Level Sensor Unit (Sub)
Check resistance between terminals 1 and 2.
*1 and *2: When float rod is in contact with stopper.Terminal Float position [mm (in)] Resistance value [Ω]
25*1 Full 210 (8.27) Approx. 3
*2 Empty 30 (1.18) Approx. 80
SKIB3550J
Terminal Continuity
2 - Signal terminal (A)
Ye s
5 - Ground terminal (B)
SKIB3551J
Terminal Float position [mm (in)]Resistance
value [Ω]
12*1 Full 9 (0.35) Approx. 3
*2 Empty 179 (7.05) Approx. 43
SKIB2678J

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Revision: 2007 April2007 M35/M45 DTC Confirmation Procedure ............................... 438
Wiring Diagram .................................................... 439
Diagnostic Procedure ........................................... 440
Component Inspection ......................................... 444
DTC P0455 EVAP CONTROL SYSTEM ................ 445
On Board Diagnosis Logic ................................... 445
DTC Confirmation Procedure ............................... 446
Diagnostic Procedure ........................................... 447
DTC P0456 EVAP CONTROL SYSTEM ................ 453
On Board Diagnosis Logic ................................... 453
DTC Confirmation Procedure ............................... 454
Overall Function Check ........................................ 455
Diagnostic Procedure ........................................... 456
DTC P0460 FUEL LEVEL SENSOR ...................... 462
Component Description ........................................ 462
On Board Diagnosis Logic ................................... 462
DTC Confirmation Procedure ............................... 462
Diagnostic Procedure ........................................... 463
Removal and Installation ...................................... 463
DTC P0461 FUEL LEVEL SENSOR ...................... 464
Component Description ........................................ 464
On Board Diagnosis Logic ................................... 464
Overall Function Check ........................................ 464
Diagnostic Procedure ........................................... 465
Removal and Installation ...................................... 465
DTC P0462, P0463 FUEL LEVEL SENSOR CIR-
CUIT ........................................................................ 466
Component Description ........................................ 466
On Board Diagnosis Logic ................................... 466
DTC Confirmation Procedure ............................... 466
Diagnostic Procedure ........................................... 467
Removal and Installation ...................................... 467
DTC P0500 VSS ..................................................... 468
Description ........................................................... 468
On Board Diagnosis Logic ................................... 468
DTC Confirmation Procedure ............................... 468
Overall Function Check ........................................ 469
Diagnostic Procedure ........................................... 469
DTC P0506 ISC SYSTEM ....................................... 470
Description ........................................................... 470
On Board Diagnosis Logic ................................... 470
DTC Confirmation Procedure ............................... 470
Diagnostic Procedure ........................................... 471
DTC P0507 ISC SYSTEM ....................................... 472
Description ........................................................... 472
On Board Diagnosis Logic ................................... 472
DTC Confirmation Procedure ............................... 472
Diagnostic Procedure ........................................... 473
DTC P0550 PSP SENSOR ..................................... 474
Component Description ........................................ 474
CONSULT-II Reference Value in Data Monitor Mode
. 474
On Board Diagnosis Logic ................................... 474
DTC Confirmation Procedure ............................... 474
Wiring Diagram .................................................... 475
Diagnostic Procedure ........................................... 476
Component Inspection ......................................... 478
Removal and Installation ...................................... 478DTC P0603 ECM POWER SUPPLY .......................479
Component Description ........................................479
On Board Diagnosis Logic ....................................479
DTC Confirmation Procedure ...............................479
Wiring Diagram .....................................................480
Diagnostic Procedure ...........................................481
DTC P0605 ECM .....................................................483
Component Description ........................................483
On Board Diagnosis Logic ....................................483
DTC Confirmation Procedure ...............................483
Diagnostic Procedure ...........................................484
DTC P0643 SENSOR POWER SUPPLY ................486
On Board Diagnosis Logic ....................................486
DTC Confirmation Procedure ...............................486
Wiring Diagram .....................................................487
Diagnostic Procedure ...........................................489
DTC P0850 PNP SWITCH ......................................491
Component Description ........................................491
CONSULT-II Reference Value in Data Monitor Mode
.491
On Board Diagnosis Logic ....................................491
DTC Confirmation Procedure ...............................491
Overall Function Check ........................................492
Wiring Diagram .....................................................493
Diagnostic Procedure ...........................................494
DTC P1148, P1168 CLOSED LOOP CONTROL ....496
On Board Diagnosis Logic ....................................496
DTC P1211 TCS CONTROL UNIT ..........................497
Description ............................................................497
On Board Diagnosis Logic ....................................497
DTC Confirmation Procedure ...............................497
Diagnostic Procedure ...........................................497
DTC P1212 TCS COMMUNICATION LINE ............498
Description ............................................................498
On Board Diagnosis Logic ....................................498
DTC Confirmation Procedure ...............................498
Diagnostic Procedure ...........................................498
DTC P1217 ENGINE OVER TEMPERATURE ........499
Description ............................................................499
CONSULT-II Reference Value in Data Monitor Mode
.500
On Board Diagnosis Logic ....................................500
Overall Function Check ........................................500
Wiring Diagram .....................................................502
Diagnostic Procedure ...........................................504
Main 12 Causes of Overheating ...........................507
Component Inspection ..........................................509
DTC P1220 FUEL PUMP CONTROL MODULE
(FPCM) ....................................................................510
Description ............................................................510
CONSULT-II Reference Value in Data Monitor Mode
.510
On Board Diagnosis Logic ....................................510
DTC Confirmation Procedure ...............................511
Wiring Diagram .....................................................512
Diagnostic Procedure ...........................................513
Component Inspection ..........................................517
DTC P1225 TP SENSOR ........................................518
Component Description ........................................518

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Revision: 2007 April2007 M35/M45 DTC P2100, P2103 THROTTLE CONTROL MOTOR
RELAY .................................................................... 598
Component Description ........................................ 598
CONSULT-II Reference Value in Data Monitor Mode
. 598
On Board Diagnosis Logic ................................... 598
DTC Confirmation Procedure ............................... 598
Wiring Diagram .................................................... 600
Diagnostic Procedure ........................................... 601
DTC P2101 ELECTRIC THROTTLE CONTROL
FUNCTION .............................................................. 604
Description ........................................................... 604
On Board Diagnosis Logic ................................... 604
DTC Confirmation Procedure ............................... 604
Wiring Diagram .................................................... 605
Diagnostic Procedure ........................................... 606
Component Inspection ......................................... 609
Removal and Installation ...................................... 609
DTC P2118 THROTTLE CONTROL MOTOR ........ 610
Component Description ........................................ 610
On Board Diagnosis Logic ................................... 610
DTC Confirmation Procedure ............................... 610
Wiring Diagram ..................................................... 611
Diagnostic Procedure ........................................... 612
Component Inspection ......................................... 613
Removal and Installation ...................................... 614
DTC P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................ 615
Component Description ........................................ 615
On Board Diagnosis Logic ................................... 615
DTC Confirmation Procedure ............................... 615
Diagnostic Procedure ........................................... 616
DTC P2122, P2123 APP SENSOR ........................ 617
Component Description ........................................ 617
CONSULT-II Reference Value in Data Monitor Mode
. 617
On Board Diagnosis Logic ................................... 617
DTC Confirmation Procedure ............................... 618
Wiring Diagram .................................................... 619
Diagnostic Procedure ........................................... 620
Component Inspection ......................................... 622
Removal and Installation ...................................... 623
DTC P2127, P2128 APP SENSOR ........................ 624
Component Description ........................................ 624
CONSULT-II Reference Value in Data Monitor Mode
. 624
On Board Diagnosis Logic ................................... 624
DTC Confirmation Procedure ............................... 625
Wiring Diagram .................................................... 626
Diagnostic Procedure ........................................... 627
Component Inspection ......................................... 630
Removal and Installation ...................................... 630
DTC P2135 TP SENSOR ........................................ 631
Component Description ........................................ 631
CONSULT-II Reference Value in Data Monitor Mode
. 631
On Board Diagnosis Logic ................................... 631
DTC Confirmation Procedure ............................... 632
Wiring Diagram .................................................... 633Diagnostic Procedure ...........................................634
Component Inspection ..........................................637
Removal and Installation ......................................637
DTC P2138 APP SENSOR .....................................638
Component Description ........................................638
CONSULT-II Reference Value in Data Monitor Mode
.638
On Board Diagnosis Logic ....................................638
DTC Confirmation Procedure ...............................639
Wiring Diagram .....................................................640
Diagnostic Procedure ...........................................641
Component Inspection ..........................................645
Removal and Installation ......................................645
DTC P2A00, P2A03 A/F SENSOR 1 ......................646
Component Description ........................................646
CONSULT-II Reference Value in Data Monitor Mode
.646
On Board Diagnosis Logic ....................................646
DTC Confirmation Procedure ...............................646
Wiring Diagram .....................................................648
Diagnostic Procedure ...........................................651
Removal and Installation ......................................656
ASCD BRAKE SWITCH .........................................657
Component Description ........................................657
CONSULT-II Reference Value in Data Monitor Mode
.657
Wiring Diagram .....................................................658
Diagnostic Procedure ...........................................659
Component Inspection ..........................................663
ASCD INDICATOR ..................................................664
Component Description ........................................664
CONSULT-II Reference Value in Data Monitor Mode
.664
Wiring Diagram .....................................................665
Diagnostic Procedure ...........................................666
ELECTRICAL LOAD SIGNAL ................................667
Description ............................................................667
CONSULT-II Reference Value in Data Monitor Mode
.667
Diagnostic Procedure ...........................................667
FUEL INJECTOR ....................................................669
Component Description ........................................669
CONSULT-II Reference Value in Data Monitor Mode
.669
Wiring Diagram .....................................................670
Diagnostic Procedure ...........................................671
Component Inspection ..........................................674
Removal and Installation ......................................674
FUEL PUMP ............................................................675
Description ............................................................675
CONSULT-II Reference Value in Data Monitor Mode
.675
Wiring Diagram .....................................................676
Diagnostic Procedure ...........................................677
Component Inspection ..........................................681
Removal and Installation ......................................682
ICC BRAKE SWITCH .............................................683
Component Description ........................................683
CONSULT-II Reference Value in Data Monitor Mode

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Wiring Diagram .....................................................684
Diagnostic Procedure ...........................................685
Component Inspection ..........................................689
IGNITION SIGNAL ..................................................691
Component Description ........................................691
Wiring Diagram .....................................................692
Diagnostic Procedure ...........................................697
Component Inspection ..........................................702
Removal and Installation ......................................703
REFRIGERANT PRESSURE SENSOR ..................704
Component Description ........................................704
Wiring Diagram .....................................................705
Diagnostic Procedure ...........................................706
Removal and Installation ......................................708
SNOW MODE SWITCH ...........................................709
Description ............................................................709
CONSULT-II Reference Value in the Data Monitor
Mode .....................................................................709
Wiring Diagram .....................................................710
Diagnostic Procedure ...........................................711
Component Inspection ..........................................713
MIL AND DATA LINK CONNECTOR ......................714
Wiring Diagram .....................................................714
SERVICE DATA AND SPECIFICATIONS (SDS) ....716
Fuel Pressure .......................................................716
Idle Speed and Ignition Timing .............................716
Calculated Load Value ..........................................716
Mass Air Flow Sensor ...........................................716
Intake Air Temperature Sensor .............................716
Engine Coolant Temperature Sensor ...................716
Fuel Tank Temperature Sensor ............................716
Crankshaft Position Sensor (POS) .......................716
Camshaft Position Sensor (PHASE) ....................716
A/F Sensor 1 Heater .............................................716
Heated Oxygen Sensor 2 Heater .........................717
Throttle Control Motor ...........................................717
Fuel Injector ..........................................................717
Fuel Pump ............................................................717
VK45DE
INDEX FOR DTC .....................................................718
DTC No. Index ......................................................718
Alphabetical Index ................................................722
PRECAUTIONS .......................................................726
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................726
Precautions for Procedures without Cowl Top Cover .726
On Board Diagnostic (OBD) System of Engine and
A/T ........................................................................726
Precaution ............................................................727
PREPARATION .......................................................730
Special Service Tools ...........................................730
Commercial Service Tools ....................................731
ENGINE CONTROL SYSTEM ................................732
System Diagram ...................................................732
Multiport Fuel Injection (MFI) System ...................733Electronic Ignition (EI) System ..............................735
Fuel Cut Control (At No Load and High Engine
Speed) ..................................................................736
AIR CONDITIONING CUT CONTROL ....................737
Input/Output Signal Chart .....................................737
System Description ...............................................737
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .738
System Description ...............................................738
Component Description ........................................739
CAN COMMUNICATION .........................................740
System Description ...............................................740
EVAPORATIVE EMISSION SYSTEM .....................741
Description ............................................................741
Component Inspection ..........................................744
Removal and Installation .......................................745
How to Detect Fuel Vapor Leakage ......................745
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ....................................................................748
System Description ...............................................748
Diagnostic Procedure ............................................749
Component Inspection ..........................................751
POSITIVE CRANKCASE VENTILATION ................753
Description ............................................................753
Component Inspection ..........................................753
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ......................................................................755
Description ............................................................755
ON BOARD DIAGNOSTIC (OBD) SYSTEM ...........756
Introduction ...........................................................756
Two Trip Detection Logic .......................................756
Emission-Related Diagnostic Information .............757
Malfunction Indicator Lamp (MIL) .........................772
OBD System Operation Chart ...............................774
BASIC SERVICE PROCEDURE .............................780
Basic Inspection ....................................................780
Idle Speed and Ignition Timing Check ..................785
Procedure After Replacing ECM ...........................787
VIN Registration ....................................................787
Accelerator Pedal Released Position Learning .....788
Throttle Valve Closed Position Learning ...............788
Idle Air Volume Learning .......................................788
Fuel Pressure Check ............................................790
TROUBLE DIAGNOSIS ..........................................792
Trouble Diagnosis Introduction .............................792
DTC Inspection Priority Chart ...............................798
Fail-Safe Chart ......................................................800
Symptom Matrix Chart ..........................................801
Engine Control Component Parts Location ...........805
Vacuum Hose Drawing .........................................814
Circuit Diagram .....................................................815
ECM Harness Connector Terminal Layout ............817
ECM Terminals and Reference Value ...................817
CONSULT-II Function (ENGINE) ..........................826
Generic Scan Tool (GST) Function .......................838
CONSULT-II Reference Value in Data Monitor .....841
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................845
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .847
Description ............................................................847

EC-12Revision: 2007 April2007 M35/M45 DTC Confirmation Procedure ..............................11 4 6
Wiring Diagram ....................................................11 4 7
Diagnostic Procedure ..........................................11 4 8
Component Inspection .........................................11 5 2
DTC P0455 EVAP CONTROL SYSTEM ................115 3
On Board Diagnosis Logic ...................................11 5 3
DTC Confirmation Procedure ..............................11 5 4
Diagnostic Procedure ..........................................11 5 5
DTC P0456 EVAP CONTROL SYSTEM ................116 0
On Board Diagnosis Logic ...................................11 6 0
DTC Confirmation Procedure ..............................11 6 1
Overall Function Check .......................................11 6 2
Diagnostic Procedure ..........................................11 6 3
DTC P0460 FUEL LEVEL SENSOR ......................116 9
Component Description .......................................11 6 9
On Board Diagnosis Logic ...................................11 6 9
DTC Confirmation Procedure ..............................11 6 9
Diagnostic Procedure ..........................................11 7 0
Removal and Installation .....................................11 7 0
DTC P0461 FUEL LEVEL SENSOR ......................117 1
Component Description .......................................11 7 1
On Board Diagnosis Logic ...................................11 7 1
Overall Function Check .......................................11 7 1
Diagnostic Procedure ..........................................11 7 2
Removal and Installation .....................................11 7 2
DTC P0462, P0463 FUEL LEVEL SENSOR CIR-
CUIT .......................................................................117 3
Component Description .......................................11 7 3
On Board Diagnosis Logic ...................................11 7 3
DTC Confirmation Procedure ..............................11 7 3
Diagnostic Procedure ..........................................11 7 4
Removal and Installation .....................................11 7 4
DTC P0500 VSS .....................................................117 5
Description ...........................................................11 7 5
On Board Diagnosis Logic ...................................11 7 5
DTC Confirmation Procedure ..............................11 7 5
Overall Function Check .......................................11 7 6
Diagnostic Procedure ..........................................11 7 6
DTC P0506 ISC SYSTEM ......................................117 7
Description ...........................................................11 7 7
On Board Diagnosis Logic ...................................11 7 7
DTC Confirmation Procedure ..............................11 7 7
Diagnostic Procedure ..........................................11 7 8
DTC P0507 ISC SYSTEM ......................................117 9
Description ...........................................................11 7 9
On Board Diagnosis Logic ...................................11 7 9
DTC Confirmation Procedure ..............................11 7 9
Diagnostic Procedure ..........................................11 8 0
DTC P0550 PSP SENSOR .....................................118 1
Component Description .......................................11 8 1
CONSULT-II Reference Value in Data Monitor Mode
11 8 1
On Board Diagnosis Logic ...................................11 8 1
DTC Confirmation Procedure ..............................11 8 1
Wiring Diagram ....................................................11 8 2
Diagnostic Procedure ..........................................11 8 3
Component Inspection .........................................11 8 5
Removal and Installation .....................................11 8 5DTC P0603 ECM POWER SUPPLY .......................11 86
Component Description .......................................11 8 6
On Board Diagnosis Logic ...................................11 8 6
DTC Confirmation Procedure ...............................11 8 6
Wiring Diagram ....................................................11 8 7
Diagnostic Procedure ...........................................11 8 8
DTC P0605 ECM ....................................................11 90
Component Description .......................................11 9 0
On Board Diagnosis Logic ...................................11 9 0
DTC Confirmation Procedure ...............................11 9 0
Diagnostic Procedure ...........................................11 9 1
DTC P0643 SENSOR POWER SUPPLY ...............11 93
On Board Diagnosis Logic ...................................11 9 3
DTC Confirmation Procedure ...............................11 9 3
Wiring Diagram ....................................................11 9 4
Diagnostic Procedure ...........................................11 9 6
DTC P0850 PNP SWITCH ......................................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 8
Overall Function Check ........................................11 9 9
Wiring Diagram ....................................................1200
Diagnostic Procedure ...........................................1201
DTC P1140, P1145 IVT CONTROL POSITION SEN-
SOR ........................................................................1203
Component Description .......................................1203
CONSULT-II Reference Value in Data Monitor Mode
1203
On Board Diagnosis Logic ...................................1203
DTC Confirmation Procedure ...............................1203
Wiring Diagram ....................................................1204
Diagnostic Procedure ...........................................1207
Component Inspection .........................................1210
Removal and Installation ......................................1210
DTC P1148, P1168 CLOSED LOOP CONTROL ...1211
On Board Diagnosis Logic ...................................1211
DTC P1211 TCS CONTROL UNIT .........................1212
Description ...........................................................1212
On Board Diagnosis Logic ...................................1212
DTC Confirmation Procedure ...............................1212
Diagnostic Procedure ...........................................1212
DTC P1212 TCS COMMUNICATION LINE ............1213
Description ...........................................................1213
On Board Diagnosis Logic ...................................1213
DTC Confirmation Procedure ...............................1213
Diagnostic Procedure ...........................................1213
DTC P1217 ENGINE OVER TEMPERATURE .......1214
Description ...........................................................1214
CONSULT-II Reference Value in Data Monitor Mode
1215
On Board Diagnosis Logic ...................................1215
Overall Function Check ........................................1215
Wiring Diagram ....................................................1217
Diagnostic Procedure ...........................................1219
Main 13 Causes of Overheating ..........................1223
Component Inspection .........................................1224
DTC P1220 FUEL PUMP CONTROL MODULE

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Revision: 2007 April2007 M35/M45 Wiring Diagram ...................................................1390
Diagnostic Procedure ..........................................1391
Component Inspection ........................................1394
Removal and Installation .....................................1394
FUEL PUMP ..........................................................1395
Description ..........................................................1395
CONSULT-II Reference Value in Data Monitor Mode
1395
Wiring Diagram ...................................................1396
Diagnostic Procedure ..........................................1397
Component Inspection ........................................1401
Removal and Installation .....................................1402
ICC BRAKE SWITCH ............................................1403
Component Description .......................................1403
CONSULT-II Reference Value in Data Monitor Mode
1403
Wiring Diagram ...................................................1404
Diagnostic Procedure ..........................................1405
Component Inspection ........................................1410
IGNITION SIGNAL .................................................1411
Component Description .......................................1411
Wiring Diagram ...................................................1412
Diagnostic Procedure ..........................................1417
Component Inspection ........................................1421
Removal and Installation .....................................1423
REFRIGERANT PRESSURE SENSOR ................1424
Component Description .......................................1424
Wiring Diagram ...................................................1425Diagnostic Procedure ..........................................1426
Removal and Installation .....................................1428
VIAS .......................................................................1429
Description ...........................................................1429
CONSULT-II Reference Value in Data Monitor Mode
1430
Wiring Diagram ....................................................1431
Diagnostic Procedure ..........................................1433
Component Inspection .........................................1436
Removal and Installation .....................................1437
MIL AND DATA LINK CONNECTOR .....................1438
Wiring Diagram ....................................................1438
SERVICE DATA AND SPECIFICATIONS (SDS) ...1440
Fuel Pressure ......................................................1440
Idle Speed and Ignition Timing ............................1440
Calculated Load Value .........................................1440
Mass Air Flow Sensor ..........................................1440
Intake Air Temperature Sensor ............................1440
Engine Coolant Temperature Sensor ..................1440
Fuel Tank Temperature Sensor ...........................1440
Crankshaft Position Sensor (POS) ......................1440
Camshaft Position Sensor (PHASE) ...................1440
A/F Sensor 1 Heater ............................................1440
Heated Oxygen Sensor 2 Heater ........................1441
Throttle Control Motor ..........................................1441
Fuel Injector .........................................................1441
Fuel Pump ...........................................................1441

PRECAUTIONS
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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.
–Fuel level sensor unit and fuel pump (1)
–Fuel pressure regulator (2)
–Fuel tank temperature sensor (3)

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
PBIB2707E
SEF709Y
SEF708Y

EVAPORATIVE EMISSION SYSTEM
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EVAP SERVICE PORT
Positive pressure is delivered to the EVAP system through the EVAP
service port. If fuel vapor leakage in the EVAP system occurs, use a
leak detector to locate the leak.
Removal and InstallationNBS004SD
EVAP CANISTER
Tighten EVAP canister as shown in the figure.
EVAP CANISTER VENT CONTROL VALVE
1. Turn EVAP canister vent control valve counterclockwise.

Lock (A)

Unlock (B)
2. Remove the EVAP canister vent control valve.
Always replace O-ring with a new one.
How to Detect Fuel Vapor LeakageNBS004SE
CAUTION:

Do not use compressed air or a high pressure pump.

Do not exceed 4.12 kPa (0.042 kg/cm2 , 0.6 psi) of pressure in EVAP system.
SEF462UA
1. EVAP control system pressure sen-
sor2. O-ring 3. EVAP canister
4. O-ring 5. EVAP canister vent control valve
PBIB2729E
PBIB2730E