pressure INFINITI M35 2006 Factory Service Manual

DI-28
UNIFIED METER AND A/C AMP
Revision: 2006 January2006 M35/M45
UNIFIED METER AND A/C AMPPFP:27760
System DescriptionNKS003UG
For the unified meter and A/C amp., the signal required for controlling the combination meter are integrated in
the A/C auto amp.
COMBINATION METER CONTROL FUNCTION
Unified meter and A/C amp. inputs necessary information for combination meter from each unit with CAN
communication and so on.
Unified meter and A/C amp. outputs signals with communication line (TX, RX) between unified meter and
A/C amp. and combination meter.
Unified meter and A/C amp. corresponds a CONSULT-II function (self-diagnostic results, CAN diagnostic
support monitor and data monitor).
Input/output Signals
Between unified meter and A/C amp. and combination meter.
Unit Input from combination meter Output to combination meter
Unified meter and A/C amp.
Refuel status signal
Low-fuel warning lamp condition signal
Delivery destination data signal
Combination meter receive error signal
Combination meter specifications signal
Odo date signal
Vehicle speed signal
Turn indicator signal
High beam request signal
Ring illumination request signal
Position light request signal
Front fog lamp request signal
SET indicator lamp signal
CRUISE indicator lamp signal
Engine speed signal
Fuel level sensor signal (resistance value)
Engine coolant temperature signal
CAN communication condition signal of A/T
A/T position indicator signal
Manual mode indicator signal
A/T CHECK warning lamp signal
AWD warning lamp signal
Low tire pressure warning lamp signal
VDC OFF indicator lamp signal
SLIP indicator lamp signal
ABS warning lamp signal
Brake warning lamp signal
Malfunction indicator lamp signal
Oil pressure switch signal
Door switch signal
Buzzer request signal
ICC warning lamp signal
Meter display signal
AFS OFF indicator signal

UNIFIED METER AND A/C AMP
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DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch either “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “MAIN SIG-
NALS” is selected, main items will be monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring, then the status of the moni-
tored item can be recorded. To stop recording, touch “STOP”.
Display Item List
X: Applicable MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.
SKIA4957E
Display item [Unit]MAIN
SIGNALSSELECTION
FROM MENUDescription
SPEED METER [km/h] or [mph] X XDisplays the value of vehicle speed signal, which is input from ABS
actuator and electric unit (control unit).
SPEED OUTPUT [km/h] or [mph] X XDisplays the value of vehicle speed signal, which is transmitted to
each unit with CAN communication.
TACHO METER [rpm] X X Displays the value of engine speed signal, which is input from ECM.
W TEMP METER [
C] or [F] X XDisplays the value of engine coolant temperature signal, which is
input from ECM.
FUEL METER [lit.] X XDisplays the value, which processes a resistance signal from fuel
gauge.
DISTANCE [km] or [mile] X XDisplays the value, which is calculated by vehicle speed signal from
ABS actuator and electric unit (control unit), fuel gauge and fuel
consumption from ECM.
FUEL W/L [ON/OFF] X X Displays [ON/OFF] condition of low-fuel warning lamp.
MIL [ON/OFF] X Displays [ON/OFF] condition of malfunction indicator lamp.
AIR PRES W/L [ON/OFF] X Displays [ON/OFF] condition of low tire pressure warning lamp.
SEAT BELT W/L [ON/OFF] X Displays [ON/OFF] condition of seat belt warning lamp.
BUZZER [ON/OFF] X X Displays [ON/OFF] condition of buzzer.
DOOR W/L [ON/OFF] X Displays [ON/OFF] condition of door warning lamp.
HI-BEAM IND [ON/OFF] X Displays [ON/OFF] condition of high beam indicator.
TURN IND [ON/OFF] X Displays [ON/OFF] condition of turn indicator.
FR FOG IND [ON/OFF] X Displays [ON/OFF] condition of front fog indicator.
OIL W/L [ON/OFF] X Displays [ON/OFF] condition of oil pressure warning lamp.
VDC/TCS IND [ON/OFF] X Displays [ON/OFF] condition of VDC/TCS OFF indicator lamp.
ABS W/L [ON/OFF] X Displays [ON/OFF] condition of ABS warning lamp.
SLIP IND [ON/OFF] X Displays [ON/OFF] condition of SLIP indicator lamp.
BRAKE W/L [ON/OFF] X Displays [ON/OFF] condition of brake warning lamp. *
KEY Y/G W/L [ON/OFF] X Displays [ON/OFF] condition of key warning lamp.

DI-40
WARNING LAMPS
Revision: 2006 January2006 M35/M45
WARNING LAMPSPFP:24814
System DescriptionNKS003UO
OIL PRESSURE WARNING LAMP
Oil pressure warning lamp turns ON when reducing engine oil pressure abnormally.
IPDM E/R inputs oil pressure switch signal from oil pressure switch, and transmits the signal to unified
meter and A/C amp. through BCM with CAN communication.
Unified meter and A/C amp. transmits oil pressure switch signal to combination meter with communication
line.
Let the combination meter turn oil pressure warning lamp ON with received oil pressure switch signal.
PKIB7655E

WARNING LAMPS
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Oil Pressure Warning Lamp Stays Off (Ignition Switch ON)NKS003US
1. CHECK OPERATION OF OIL PRESSURE WARNING LAMP
Activate IPDM E/R auto active test. Refer to PG-24, "
Auto Active Test" .
Does oil pressure warning lamp is blinking?
YES >> GO TO 2.
NO >> GO TO 4.
2. CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and oil pressure switch con-
nector.
3. Check continuity between IPDM E/R harness connector (A) and
oil pressure switch harness connector (B).
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK OIL PRESSURE SWITCH
Check oil pressure switch. Refer to DI-55, "
OIL PRESSURE SWITCH" .
OK or NG
OK >> Replace IPDM E/R. Refer to PG-31, "Removal and Installation of IPDM E/R" .
NG >> Replace oil pressure switch.
4. CHECK UNIFIED METER AND A/C AMP. (CONSULT-II)
Perform self-diagnosis of unified meter and A/C amp. Refer to DI-31, "
CONSULT-II Function (METER A/C
AMP)" .
Self
-diagnostic results content
No malfunction detected>> GO TO 5.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
5. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER A/C AMP” on CONSULT-II.
2. Operate ignition switch with “OIL W/L” of “DATA MONITOR” and
check operation status.
OK or NG
OK >> Replace combination meter.
NG >> GO TO 6.
AB
Continuity
Connector Terminal Connector Terminal
E9 52 F21 1 Yes
PKIB7657E
“OIL W/L”
When ignition switch is in ON
position (Engine stopped): ON
When engine running : OFF
PKIA2064E

DI-54
WARNING LAMPS
Revision: 2006 January2006 M35/M45
6. CHECK BCM INPUT SIGNAL
1. Select “SIGNAL BUFFER” of “BCM” on CONSULT-II.
2. Operate ignition switch with “OIL PRESS SW” of “DATA MONI-
TOR” and check operate status.
OK or NG
OK >> Replace BCM. Refer to BCS-17, "Removal and Installa-
tion of BCM" .
NG >> Replace IPDM E/R. Refer to PG-31, "
Removal and Installation of IPDM E/R" .
Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)NKS003UT
NOTE:
For oil pressure inspection, refer to LU-8, "
OIL PRESSURE CHECK" (VQ35DE) or LU-26, "OIL PRESSURE
CHECK" (VK45DE).
1. CHECK OPERATION OF OIL PRESSURE WARNING LAMP
Activate IPDM E/R auto active test. Refer to PG-24, "
Auto Active Test" .
Does oil pressure warning lamp is blinking?
YES >> GO TO 2.
NO >> GO TO 5.
2. CHECK IPDM E/R OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Turn ignition switch ON.
4. Check voltage between oil pressure switch harness connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Check oil pressure switch. Refer to DI-55, "
OIL PRESSURE SWITCH" .
OK or NG
OK >> Replace IPDM E/R. Refer to PG-31, "Removal and Installation of IPDM E/R" .
NG >> Replace oil pressure switch.“OIL PRESS SW”
When ignition switch is in ON
position (Engine stopped): ON
When engine running : OFF
SKIA8709E
Terminals
Voltage (Approx.) (+)
(–)
Oil pressure switch
connectorTe r m i n a l
F21 1 Ground 12 V
PKIB7658E

WARNING LAMPS
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4. CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and
ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-31, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector.
5. CHECK IPDM E/R (CONSULT-II)
Perform self-diagnosis of IPDM E/R. Refer to PG-20, "
CONSULT-II Function (IPDM E/R)" .
Self
-diagnostic results content
No malfunction detected>> Replace combination meter.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
Electrical Component InspectionNKS003UU
OIL PRESSURE SWITCH
Check continuity between oil pressure switch and ground.
IPDM E/R connector Terminal
GroundContinuity
E9 52 No
PKIB7659E
Condition
Oil pressure [kPa (kg/cm2 , psi)]Continuity
Engine stopped Less than 29 (0.3, 4) Yes
Engine running More than 29 (0.3, 4) No
ELF0044D

LANE DEPARTURE WARNING SYSTEM
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Camera Aiming AdjustmentNKS003VI
OUTLINE
Adjust the camera aiming every time the LDW camera unit is removed or installed.
CAUTION:
Place the vehicle on the level ground when the camera aiming adjustment is operated.
Follow the CONSULT-II when adjusting the camera aiming. (Camera aiming adjustment cannot be
operated without CONSULT-II.)
PREPARATION
Keep all tires inflated to correct pressures. Adjust the tire pressure to the specified pressure value.
There is no-load in vehicle. Check if coolant, engine oil are filled up to correct level and fuel tank is full.
Shift the gear into “P” position and release the parking brake.
Clean the windshield.
NOTE:
Do not place anything reflective on the upper surface of instrument panel.
TARGET SETTING
Preparation Aiming Adjustment Jig
For aiming adjustment, prepare the following jigs and targets.
PKIB4693E

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
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SECTION EC
A
EC
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ENGINE CONTROL SYSTEM
VQ35DE
INDEX FOR DTC ...................................................... 16
DTC No. Index ....................................................... 16
Alphabetical Index .................................................. 20
PRECAUTIONS ........................................................ 24
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 24
Precautions for Procedures without Cowl Top Cover ... 24
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 24
Precaution .............................................................. 25
PREPARATION ......................................................... 28
Special Service Tools ............................................. 28
Commercial Service Tools ...................................... 29
ENGINE CONTROL SYSTEM .................................. 30
System Diagram ..................................................... 30
Multiport Fuel Injection (MFI) System .................... 31
Electronic Ignition (EI) System ............................... 33
Fuel Cut Control (At No Load and High Engine
Speed) .................................................................... 34
AIR CONDITIONING CUT CONTROL ..................... 35
Input/Output Signal Chart ....................................... 35
System Description ................................................ 35
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ... 36
System Description ................................................ 36
Component Description .......................................... 37
CAN COMMUNICATION .......................................... 38
System Description ................................................ 38
EVAPORATIVE EMISSION SYSTEM ....................... 39
Description ............................................................. 39
Component Inspection ........................................... 42
Removal and Installation ........................................ 43
How to Detect Fuel Vapor Leakage ....................... 43
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ...................................................................... 46
System Description ................................................ 46
Diagnostic Procedure ............................................. 47
Component Inspection ........................................... 49POSITIVE CRANKCASE VENTILATION ................. 51
Description .............................................................. 51
Component Inspection ............................................ 51
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ........................................................................ 53
Description .............................................................. 53
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 54
Introduction ..................................................
........... 54
Two Trip Detection Logic ........................................ 54
Emission-Related Diagnostic Information ............... 55
Malfunction Indicator Lamp (MIL) ........................... 69
OBD System Operation Chart ................................ 72
BASIC SERVICE PROCEDURE ............................... 77
Basic Inspection ..................................................... 77
Idle Speed and Ignition Timing Check .................... 82
Idle Mixture Ratio Adjustment ................................. 84
VIN Registration ..................................................... 95
Accelerator Pedal Released Position Learning ...... 95
Throttle Valve Closed Position Learning ................. 95
Idle Air Volume Learning ........................................ 96
Fuel Pressure Check .............................................. 98
TROUBLE DIAGNOSIS ..........................................100
Trouble Diagnosis Introduction .............................100
DTC Inspection Priority Chart ...............................106
Fail-Safe Chart .....................................................108
Symptom Matrix Chart ..........................................109
Engine Control Component Parts Location ..........113
Vacuum Hose Drawing .........................................121
Circuit Diagram .....................................................122
ECM Harness Connector Terminal Layout ...........124
ECM Terminals and Reference Value ...................124
CONSULT-II Function (ENGINE) ..........................133
Generic Scan Tool (GST) Function .......................146
CONSULT-II Reference Value in Data Monitor .....149
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................153
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .155
Description ............................................................155
Testing Condition ..................................................155

EC-4Revision: 2006 January2006 M35/M45 Component Inspection ..........................................360
Removal and Installation ......................................360
DTC P0300 - P0306 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 6 CYLINDER MISFIRE .....................361
On Board Diagnosis Logic ....................................361
DTC Confirmation Procedure ...............................361
Diagnostic Procedure ...........................................362
DTC P0327, P0328 KS ............................................371
Component Description ........................................371
On Board Diagnosis Logic ....................................371
DTC Confirmation Procedure ...............................371
Wiring Diagram .....................................................372
Diagnostic Procedure ...........................................373
Component Inspection ..........................................375
Removal and Installation ......................................375
DTC P0335 CKP SENSOR (POS) ..........................376
Component Description ........................................376
CONSULT-II Reference Value in Data Monitor Mode
.376
On Board Diagnosis Logic ....................................376
DTC Confirmation Procedure ...............................377
Wiring Diagram .....................................................378
Diagnostic Procedure ...........................................379
Component Inspection ..........................................382
Removal and Installation ......................................382
DTC P0340, P0345 CMP SENSOR (PHASE) .........383
Component Description ........................................383
CONSULT-II Reference Value in Data Monitor Mode
.383
On Board Diagnosis Logic ....................................383
DTC Confirmation Procedure ...............................383
Wiring Diagram .....................................................385
Diagnostic Procedure ...........................................388
Component Inspection ..........................................391
Removal and Installation ......................................391
DTC P0420, P0430 THREE WAY CATALYST FUNC-
TION ........................................................................392
On Board Diagnosis Logic ....................................392
DTC Confirmation Procedure ...............................392
Overall Function Check ........................................393
Diagnostic Procedure ...........................................394
DTC P0441 EVAP CONTROL SYSTEM .................398
System Description ...............................................398
On Board Diagnosis Logic ....................................398
DTC Confirmation Procedure ...............................398
Overall Function Check ........................................399
Diagnostic Procedure ...........................................400
DTC P0442 EVAP CONTROL SYSTEM .................403
On Board Diagnosis Logic ....................................403
DTC Confirmation Procedure ...............................404
Diagnostic Procedure ...........................................405
DTC P0443 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE ...............................412
Description ............................................................412
CONSULT-II Reference Value in Data Monitor Mode
.412
On Board Diagnosis Logic ....................................413
DTC Confirmation Procedure ...............................413
Wiring Diagram .....................................................414Diagnostic Procedure ............................................416
Component Inspection ..........................................419
Removal and Installation .......................................419
DTC P0444, P0445 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE ......................420
Description ............................................................420
CONSULT-II Reference Value in Data Monitor Mode
.420
On Board Diagnosis Logic ....................................421
DTC Confirmation Procedure ................................421
Wiring Diagram .....................................................422
Diagnostic Procedure ............................................424
Component Inspection ..........................................425
Removal and Installation .......................................426
DTC P0447 EVAP CANISTER VENT CONTROL
VALVE ......................................................................427
Component Description ........................................427
CONSULT-II Reference Value in Data Monitor Mode
.427
On Board Diagnosis Logic ....................................427
DTC Confirmation Procedure ................................428
Wiring Diagram .....................................................429
Diagnostic Procedure ............................................430
Component Inspection ..........................................432
DTC P0448 EVAP CANISTER VENT CONTROL
VALVE ......................................................................434
Component Description ........................................434
CONSULT-II Reference Value in Data Monitor Mode
.434
On Board Diagnosis Logic ....................................434
DTC Confirmation Procedure ................................435
Wiring Diagram .....................................................436
Diagnostic Procedure ............................................437
Component Inspection ..........................................438
DTC P0451 EVAP CONTROL SYSTEM PRESSURE
SENSOR ..................................................................440
Component Description ........................................440
CONSULT-II Reference Value in Data Monitor Mode
.440
On Board Diagnosis Logic ....................................440
DTC Confirmation Procedure ................................441
Diagnostic Procedure ............................................441
Component Inspection ..........................................442
DTC P0452 EVAP CONTROL SYSTEM PRESSURE
SENSOR .................................................................
.443
Component Description ........................................443
CONSULT-II Reference Value in Data Monitor Mode
.443
On Board Diagnosis Logic ....................................443
DTC Confirmation Procedure ................................444
Wiring Diagram .....................................................445
Diagnostic Procedure ............................................446
Component Inspection ..........................................448
DTC P0453 EVAP CONTROL SYSTEM PRESSURE
SENSOR ..................................................................450
Component Description ........................................450
CONSULT-II Reference Value in Data Monitor Mode
.450
On Board Diagnosis Logic ....................................450

EC-7
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Revision: 2006 January2006 M35/M45 DTC Confirmation Procedure ...............................607
Wiring Diagram ....................................................609
Diagnostic Procedure ...........................................610
DTC P2101 ELECTRIC THROTTLE CONTROL
FUNCTION ..............................................................613
Description ...........................................................613
On Board Diagnosis Logic ...................................613
DTC Confirmation Procedure ...............................613
Wiring Diagram ....................................................614
Diagnostic Procedure ...........................................615
Component Inspection .........................................618
Removal and Installation ......................................618
DTC P2118 THROTTLE CONTROL MOTOR ........619
Component Description ........................................619
On Board Diagnosis Logic ...................................619
DTC Confirmation Procedure ...............................619
Wiring Diagram ....................................................620
Diagnostic Procedure ...........................................621
Component Inspection .........................................622
Removal and Installation ......................................623
DTC P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................624
Component Description ........................................624
On Board Diagnosis Logic ...................................624
DTC Confirmation Procedure ...............................624
Diagnostic Procedure ...........................................625
DTC P2122, P2123 APP SENSOR ........................626
Component Description ........................................626
CONSULT-II Reference Value in Data Monitor Mode
.626
On Board Diagnosis Logic ...................................626
DTC Confirmation Procedure ...............................627
Wiring Diagram ....................................................628
Diagnostic Procedure ...........................................629
Component Inspection .........................................631
Removal and Installation ......................................632
DTC P2127, P2128 APP SENSOR ........................633
Component Description ........................................633
CONSULT-II Reference Value in Data Monitor Mode
.633
On Board Diagnosis Logic ...................................633
DTC Confirmation Procedure ...............................634
Wiring Diagram ....................................................635
Diagnostic Procedure ...........................................636
Component Inspection .........................................639
Removal and Installation ......................................639
DTC P2135 TP SENSOR ........................................640
Component Description ........................................640
CONSULT-II Reference Value in Data Monitor Mode
.640
On Board Diagnosis Logic ...................................640
DTC Confirmation Procedure ...............................641
Wiring Diagram ....................................................642
Diagnostic Procedure ...........................................643
Component Inspection .........................................646
Removal and Installation ......................................646
DTC P2138 APP SENSOR .....................................647
Component Description ........................................647
CONSULT-II Reference Value in Data Monitor Mode .647
On Board Diagnosis Logic ....................................647
DTC Confirmation Procedure ...............................648
Wiring Diagram .....................................................649
Diagnostic Procedure ...........................................650
Component Inspection ..........................................654
Removal and Installation ......................................654
DTC P2A00, P2A03 A/F SENSOR 1 ......................655
Component Description ........................................655
CONSULT-II Reference Value in Data Monitor Mode
.655
On Board Diagnosis Logic ....................................655
DTC Confirmation Procedure ...............................655
Wiring Diagram .....................................................657
Diagnostic Procedure ...........................................660
Removal and Installation ......................................665
IGNITION SIGNAL ..................................................666
Component Description ........................................666
Wiring Diagram .....................................................667
Diagnostic Procedure ...........................................672
Component Inspection ..........................................677
Removal and Installation ......................................678
FUEL INJECTOR ....................................................679
Component Description ........................................679
CONSULT-II Reference Value in Data Monitor Mode
.679
Wiring Diagram .....................................................680
Diagnostic Procedure ...........................................681
Component Inspection ..........................................684
Removal and Installation ......................................684
FUEL PUMP ............................................................685
Description ............................................................685
CONSULT-II Reference Value in Data Monitor Mode
.685
Wiring Diagram .....................................................686
Diagnostic Procedure ...........................................687
Component Inspection ..........................................691
Removal and Installation ......................................691
REFRIGERANT PRESSURE SENSOR ..................692
Component Description ........................................692
Wiring Diagram .....................................................693
Diagnostic Procedure ...........................................694
Removal and Installation ......................................696
ELECTRICAL LOAD SIGNAL ................................697
Description ............................................................697
CONSULT-II Reference Value in Data Monitor Mode
.697
Diagnostic Procedure ...........................................697
ICC BRAKE SWITCH .............................................699
Component Description ........................................699
CONSULT-II Reference Value in Data Monitor Mode
.699
Wiring Diagram .....................................................700
Diagnostic Procedure ...........................................701
Component Inspection ..........................................705
ASCD BRAKE SWITCH .........................................707
Component Description ........................................707
CONSULT-II Reference Value in Data Monitor Mode
.707