diagram INFINITI FX35 2008 Service Manual

EC-1180
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REFRIGERANT PRESSURE SENSOR
1. Disconnect refrigerant pressu
re sensor harness connector.
2. Turn ignition switch ON.
3. Check voltage between refrigerant pressure sensor terminal 1 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors E17, F47
 Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between refrigerant pressure sensor terminal 3 and ECM terminal 67. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors E17, F47
 Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK REFRIGERANT PRESSURE SENSOR INPU T SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 70 and refrigerant pressure sensor terminal 2. Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
PBIB1492E
Voltage: Approximately 5V
PBIB0188E
Continuity should exist.
Continuity should exist.
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SNOW MODE SWITCHEC-1183
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Wiring DiagramINFOID:0000000001327079
Diagnosis ProcedureINFOID:0000000001327080
1.CHECK SNOW MODE SWIT
ICH OVERALL FUNCTION-I
1. Turn ignition switch ON.
2. Select “SNOW MODE SW” in “DAT A MONITOR” mode with CONSULT-III.
3. Check “SNOW MODE SW” indication under the following conditions.
TBWM1369E
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EC-1184
< SERVICE INFORMATION >[VK45DE]
SNOW MODE SWITCH
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK SNOW MODE SWIT
ICH OVERALL FUNCTION-II
1. Turn ignition switch ON.
2. Start engine.
3. Check the snow indicator lamp under the following condition.
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
3.CHECK DTC WITH “UNIFIED METER AND A/C AMP.”
Refer to DI-27, "
CONSULT-III Function (METER/M&A)".
OK or NG
OK >> GO TO 4.
NG >> Go to DI-26
.
4.CHECK SNOW MODE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect snow mode switch harness connector.
3. Turn ignition switch ON.
4. Check voltage between snow mode switch terminal 1 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
 10A fuse
 Harness for open or short between snow mode switch and fuse.
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK SNOW MODE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect “unified meter and A/C amp.” harness connector.
3. Check harness continuity between snow mode switch terminal 4 and “unified meter and A/C amp.” termi-
nal 12. Refer to Wiring Diagram.
CONDITION INDICATION
Snow mode switch: ON ON
Snow mode switch: OFF OFF
CONDITION INDICATOR LAMP
Snow mode switch: ON Illuminated
Snow mode switch: OFF Not illuminated
Voltage: Battery voltage.
PBIB2562E
Continuity should exist.
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SNOW MODE SWITCHEC-1185
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4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body. Refer to EC-723, "
Ground Inspection".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace ground connections.
8.CHECK SNOW MODE INDICATOR LAMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between snow mode switch terminal 2 and ground. Refer to Wiring Diagram.
2. Also check harness for short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to power in harness or connectors.
9.CHECK SNOW MODE SWITCH
Refer to EC-1185, "
Component Inspection".
OK or NG
OK >> GO TO 10.
NG >> Replace snow mode switch.
10.CHECK INTERMITTENT INCIDENT
Refer to EC-717
.
>> INSPECTION END
Component InspectionINFOID:0000000001327081
SNOW MODE SWITCH
PBIB2195E
Continuity should exist.
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VARIABLE INDUCTION AIR CONTROL SYSTEM (VIAS)
EC-1189
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Wiring DiagramINFOID:0000000001327084
Specification data are reference values
and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals wh en measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
TBWM1370E
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EC-1192
< SERVICE INFORMATION >[VK45DE]
VARIABLE INDUCTION AIR CONTROL SYSTEM (VIAS)
2. Disconnect VIAS control sol
enoid valve (1) harness connector.
- Vacuum tank (2)
3. Turn ignition switch ON.
4. Check voltage between VIAS control solenoid valve terminal 1 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors E211, M41
 Harness connectors M82, F102
 IPDM E/R connector E7
 10A fuse
 Harness continuity between IPDM E/R and VIAS control solenoid valve
>> Repair open circuit or short to ground or short to power in harness or connectors.
8.CHECK VIAS CONTROL SOLENOID VALVE OUTP UT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 29 and VIAS control solenoid valve terminal 2. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
9.CHECK VIAS CONTROL SOLENOID VALVE
Refer to EC-1193, "
Component Inspection".
OK or NG
OK >> GO TO 10.
NG >> Replace VIAS control solenoid valve.
10.CHECK INTERMITTENT INCIDENT
Refer to EC-717
.
>> INSPECTION END
PBIB3236E
Voltage: Battery voltage
PBIB0173E
Continuity should exist.
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EC-1194
< SERVICE INFORMATION >[VK45DE]
MIL AND DATA LINK CONNECTOR
MIL AND DATA LINK CONNECTOR
Wiring DiagramINFOID:0000000001327088
TBWM1367E
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GI-1
GENERAL INFORMATION
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CONTENTS
GENERAL INFORMATION
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Description .......................................................... ......2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
2
Precaution for Procedure without Cowl Top Cover ......3
General Precaution ...................................................3
Precaution for Three Way Catalyst ...........................4
Precaution for Fuel (Unleaded Premium Gasoline
Recommended) .........................................................
5
Precaution for Fuel (Unleaded Premium Gasoline
Required) ..................................................................
5
Precaution for Multiport Fuel Injection System or
Engine Control System .............................................
5
Precaution for Hoses .................................................5
Precaution for Engine Oils ........................................6
Precaution for the Environment .................................7
Precaution for Air Conditioning .................................7
HOW TO USE THIS MANUAL ............................8
Description .......................................................... ......8
Terms ........................................................................8
Units ..........................................................................8
Contents ....................................................................8
Component ................................................................8
How to Follow Trouble Diagnosis ..............................9
How to Read Wiring Diagram ..................................13
Abbreviations ..........................................................20
SERVICE INFORMATION FOR ELECTRICAL
INCIDENT ...........................................................
22
How to Check Terminal ....................................... ....22
How to Perform Efficient Diagnosis for an Electri-
cal Incident .......................................................... ....
25
Control Units and Electrical Parts ............................32
CONSULT-III/GST CHECKING SYSTEM .........34
Description ...............................................................34
CONSULT-III Function and System Application*1 ....34
CONSULT-III/GST Data Link Connector (DLC)
Circuit ......................................................................
35
Wiring Diagram - CONSULT-III/GST CHECKING
SYSTEM - ................................................................
36
LIFTING POINT .................................................37
Commercial Service Tool ........................................37
Garage Jack and Safety Stand ................................37
2-Pole Lift ................................................................38
Board-On Lift ...........................................................38
TOW TRUCK TOWING .....................................40
Tow Truck Towing ...................................................40
Vehicle Recovery (Freeing a Stuck Vehicle) ...........41
TIGHTENING TORQUE OF STANDARD
BOLTS ...............................................................
43
Tightening Torque Table .........................................43
RECOMMENDED CHEMICAL PRODUCTS
AND SEALANTS ...............................................
44
Recommended Chemical Product and Sealant .......44
IDENTIFICATION INFORMATION ....................45
Model Variation ........................................................45
Dimensions ..............................................................47
Wheels & Tires ........................................................47
TERMINOLOGY ................................................48
SAE J1930 Terminology List ...................................48
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GI-10
< SERVICE INFORMATION >
HOW TO USE THIS MANUAL
3.Refer to Component Parts and Harness Connector Location for the Systems described in each
section for identifi cation/location of componen ts and harness connectors.
4. Refer to the Circuit Diagra m for quick pinpoint check.
If you need to check circuit continuity between harness connectors in more detail, such as when a
sub-harness is used, refer to Wiring Diagram in each individual section and Harness Layout in PG
section for identificatio n of harness connectors.
5. When checking circuit continuity, ignition switch should be OFF.
6. Before checking voltage at co nnectors, check battery voltage.
7. After accomplishing the Diagnost ic Procedures and Electrical Components Inspection, make sure
that all harness connectors ar e reconnected as they were.
HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES
1.Work and diagnostic procedure
Start to diagnose a problem using procedures indicated in enclosed test groups.
2. Questions and required results
Questions and required results are indicated in bold type in test group.
The meaning of are as follows:
3. Symbol used in illustration
Symbols included in illustrations refer to measur ements or procedures. Before diagnosing a problem,
familiarize yourself with each symbol. Refer to "Connector Symbols" in GI Section and "KEY TO SYM-
BOLS SIGNIFYING MEASUREME NTS OR PROCEDURES" below.
4. Action items
Next action for each test group is indicated based on result of each question. Test group number is shown
in the left upper portion of each test group.
HARNESS WIRE COLOR AND CONNECTOR NUMBER INDICATION
There are two types of harness wire color and connector number indication.
TYPE 1: Harness Wire Color and Connec tor Number are Shown in Illustration
SAIA0256E
a. Battery voltage → 11 - 14V or approximately 12V
b. Voltage : Approximately 0V → Less than 1V
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HOW TO USE THIS MANUALGI-13
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How to Read Wiring DiagramINFOID:0000000001325669
CONNECTOR SYMBOLS
Most of connector symbols in wiring diagrams are shown from the terminal side.
SAIA1540E
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