u1000 INFINITI FX35 2008 User Guide

ATC-74
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
OK or NG
OK >> GO TO 12.
NG-1 >> If the voltage is approx. 5 V when blower motor is ON: Replace unified meter and A/C amp.
NG-2 >> If the voltage is approx. 0 V when blower motor is OFF: Replace BCM.
12.CHECK CAN COMMUNICATION
Check CAN communication. Refer to BCS-13, "
U1000 CAN Communication Circuit".
BCM – ECM
 ECM – IPDM E/R
 ECM – Unified meter and A/C amp.
OK or NG
OK >> Replace ECM
NG >> Repair or replace malfunctioning part(s).
COMPONENT INSPECTION
Refrigerant Pressure Sensor
The refrigerant pressure sensor is attached to the condenser.
Make sure that the A/C refrigerant pressure and the sensor output
voltage are within the specified r ange as shown in the A/C operating
condition figure. Refer to EC-581
(VQ35DE) or EC-1177 (VK45DE).
Te r m i n a l s
Condition Voltage
(+)
(− )
Unified meter
and A/C amp.
connector Te r m i n a l N o .
M57 57 Ground A/C switch: ON
(Blower motor operates.)
Approx. 0 V
OFF switch: ON
(A/C system: OFF)
SJIA1474J
RJIA2011E
RJIA2954E
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BCS-1
ELECTRICAL
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SECTION BCS
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CONTENTS
BODY CONTROL SYSTEM
SERVICE INFORMATION .. ..........................2
DTC INDEX ..................................................... .....2
U1000 .................................................................. ......2
PRECAUTIONS ...................................................3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
BCM (BODY CONTROL MODULE) ..................4
System Description .............................................. .....4
CAN Communication Unit .........................................9
Schematic ................................................................10
CONSULT-III Function (BCM) .................................11
U1000 CAN Communication Circuit ........................13
Removal and Installation of BCM ............................13
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BCS-2
< SERVICE INFORMATION >
DTC INDEX
SERVICE INFORMATION
DTC INDEX
U1000INFOID:0000000001351357
DTC Items (CONSULT screen terms) Reference
U1000 CAN COMM CIRCUIT BCS-13, "
U1000 CAN Communication Circuit"
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BCM (BODY CONTROL MODULE)BCS-13
< SERVICE INFORMATION >
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SELF-DIAG RESULTS
U1000 CAN Communication CircuitINFOID:0000000001606767
1.PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of BCM.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-14, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-25, "
How to Perform Efficient Diagnosis for an Electrical Incident".
Removal and Installation of BCMINFOID:0000000001328613
REMOVAL
1. Remove the dash side finisher (LH). Refer to EI-38.
2. Disconnect BCM connector.
3. Remove bracket mounting screws (3) to remove BCM and fuse block with bracket.
Item Description
RESET SETTING VALUE Return a value set with WORK SUPPORT of each system to a default value in factory shipment.
DTC DTC Detection Condition Possible cause
U1000: CAN COMM CIRCUIT When BCM cannot communicate CAN com-
munication signal continuously for 2 sec-
onds or more. Any item (or items) of the following listed below is
malfunctioning in CAN communication system.
Transmission
 Receiving (ECM)
 Receiving (IPDM E/R)
 Receiving (METER/M&A)
 Receiving (I-KEY)
SKIA4964E
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BL-1
BODY
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SECTION BL
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CONTENTS
BODY, LOCK & SECURITY SYSTEM
SERVICE INFORMATION .. ..........................4
DTC INDEX ..................................................... .....4
INTELLGENT KEY UNIT U1000 ...............................4
INTELLGENT KEY UNIT B2013-B2014 ............. ......4
ECM P1610-P1615 ...................................................4
PRECAUTIONS ...................................................5
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
5
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
5
Precaution for Work ..................................................5
PREPARATION ...................................................6
Special Service Tool ........................................... ......6
Commercial Service Tool ..........................................6
SQUEAK AND RATTLE TROUBLE DIAGNO-
SIS .......................................................................
7
Work Flow ........................................................... ......7
Generic Squeak and Rattle Troubleshooting ............9
Diagnostic Worksheet .............................................11
HOOD .................................................................13
Fitting Adjustment ............................................... ....13
Removal and Installation of Hood Assembly ...........14
Removal and Installation of Hood Lock Control ......15
Hood Lock Control Inspection ............................. ....16
RADIATOR CORE SUPPORT ...........................18
Removal and Installation ..................................... ....18
FRONT FENDER ................................................20
Removal and Installation ..................................... ....20
POWER DOOR LOCK SYSTEM ........................21
Component Parts and Harness Connector Loca-
tion ...................................................................... ....
21
System Description .................................................22
CAN Communication System Description ...............23
CAN Communication Unit .................................... ....23
Schematic/With Intelligent Key ................................24
Wiring Diagram - D/LOCK -/With Intelligent Key .....25
Schematic/Without Intellig ent Key ...........................30
Wiring Diagram - D/LOCK -/Without Intelligent
Key ...................................................................... ....
31
Terminal and Reference Value for BCM ..................35
Terminal and Reference Value for Intelligent Key
Unit (With Intelligent Key System) ...........................
35
Work Flow ................................................................36
CONSULT-III Function (BCM) .................................36
Trouble Diagnosis Chart by Symptom .....................37
Check BCM Power Supply and Ground Circuit .......37
Check Door Switch ..................................................38
Check Key Switch ....................................................42
Check Door Lock and Unlock Switch ......................43
Check Door Lock Actuator (Driver Side) .................45
Check Door Lock Actuator (Passenger Side and
Rear LH/RH) ............................................................
45
Check Fuel Lid Lock Actuator ..................................46
Check Front Door Key Cylinder Switch (Lock) ........47
Check Front Door Key Cylinder Switch (Unlock) .....47
Check Select Unlock Relay Circuit ..........................48
REMOTE KEYLESS ENTRY SYSTEM .............50
Component Parts and Harness Connector Loca-
tion ...........................................................................
50
System Description ..................................................50
CAN Communication System Description ...............53
CAN Communication Unit ........................................53
Schematic ................................................................54
Wiring Diagram - KEYLES - ....................................55
Terminal and Reference Value for BCM ..................58
Terminal and Reference Value for IPDM E/R ..........59
CONSULT-III Function (BCM) .................................60
Work Flow ................................................................62
Trouble Diagnosis Chart by Symptom .....................62
Check Key Fob Battery and Function ......................63
Check ACC Switch ..................................................64
Check Door Switch ..................................................65
Check Key Switch ....................................................68
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BL-4
< SERVICE INFORMATION >
DTC INDEX
SERVICE INFORMATION
DTC INDEX
INTELLGENT KEY UNIT U1000INFOID:0000000001529387
INTELLGENT KEY UNIT B2013-B2014INFOID:0000000001529388
ECM P1610-P1615INFOID:0000000001529389
CONSULT display Descr iption Reference page
U1000: CAN COMM CIRCUIT M alfunction is detected in CA N communication.
BCS-13, "
U1000 CAN
Communication Circuit"
CONSULT display Descr iption Reference page
B2013: STRG COMM 1 .Malfunction is detected in communication of Intelligent
Key unit and steering lock unit BL-124, "
Check Steering
Lock Unit"
B2014: STRG COMM 2
Malfunction is detected in communication of Intelligent Key
unit and steering lock unit. BL-124, "Check Steering
Lock Unit"
CONSULT display Descr
iption Reference page
P1610: LOCK MODE When the starting operation is carried out 5 or more times
consecutively under the following conditions, IVIS(NATS)
will shift the mode to prevent the engine start.
• unregistered ignition key is used (without intelligent key
system)
 BCM or ECM malfunctioning BL-198, "
Diagnosis Proce-
dure 5"
P1611: ID DISCORD, IMM-ECM
The result of ID verification between BCM and ECM is NG.
System initialization is required. BL-197, "Diagnosis Proce-
dure 4"
P1612: CHAIN OF ECM-IMMU Communication impossible between ECM and BCM.
BL-197, "Diagnosis Proce-
dure 2"
P1613: ECM INT CIRC-IMMUThe malfunction of ECM internal circuit to BCM communi-
cation line is detected. BL-195, "Diagnosis Proce-
dure 1"
P1614: CHAIN OF IMMU-KEY BCM cannot receive the key ID signal.
BL-200, "Diagnosis Proce-
dure 6"
P1615: DIFFERENCE OF KEY
BCM can receive the key ID signal but the result of ID ver-
ification between key ID and BCM is NG. BL-197, "Diagnosis Proce-
dure 3"
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BL-72
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
3. Check continuity between IPDM E/R connector E9 terminal 51and horn relay connector E10 terminal 1.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace harness.
Check Hazard Warn ing Lamp FunctionINFOID:0000000001327829
1.CHECK HAZARD WARNING LAMP
Do hazard warning lamp flash with hazard switch?
YES or NO
YES >> Hazard warning lamp circuit is OK.
NO >> Check hazard circuit. Refer to LT- 7 8
.
Check Horn FunctionINFOID:0000000001327830
First perform the “SELF-DIAG RESULTS” in “BCM” wi th CONSULT-III, then perform the trouble diagnosis of
malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-13, "
U1000 CAN Communica-
tion Circuit".
1.CHECK HORN FUNCTION
Does horn sound with horn switch?
YES or NO
YES >> Horn circuit is OK.
NO >> Check horn circuit. Refer to WW-48, "
Wiring Diagram - HORN -".
Check Headlamp FunctionINFOID:0000000001327831
First perform the “SELF-DIAG RESULTS” in “BCM” wi th CONSULT-III, then perform the trouble diagnosis of
malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-13, "
U1000 CAN Communica-
tion Circuit".
1.CHECK HEADLAMP FUNCTION
Does headlamp come on when turning lighting switch “ON”?
YES or NO
YES >> Headlamp operation circuit is OK.
NO >> Check headlamp system. Refer to LT- 5 , "
System Description".
Check Map Lamp and Ignition Keyhole Illumination FunctionINFOID:0000000001327832
1.CHECK MAP LAMP AND IGNITION KEYHOLE ILLUMINATION FUNCTION
When map lamp switch is in “DOOR” position, open the front door (LH or RH).
OK or NG
51 (SB) – 1 (SB) : Continuity should exist.
PIIA6404E
Map lamp and ignition keyhole illumination should illuminate.
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BL-104
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
CONSULT-III Application Item
INFOID:0000000001327849
WORK SUPPORT
SELF-DIAGNOSTIC RESULTS
DATA MONITOR
MAIN SIGNALS Display Item
Part to be diagnosed Inspection Item, Diagnosis Mode Description
Intelligent Key WORK SUPPORT
 Performs Intelligent Key-ID registration, check, and deletion.
 Performs steering lock unit ID registration.
 Changes settings for each function (ON/OFF).
SELF-DIAG RESULTS Intelligent Key unit performs CAN communication diagnosis.
DATA MONITOR Displays Intelligent Key unit input data in real time.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can
be read.
ACTIVE TEST Sends drive signals door lock actuator, buzzer or combination meter to
perform operation check.
ECU PART NUMBER Displays Intelligent Key unit part No.
Monitor item Description
CONFIRM KEY FOB ID The Intelligent Key ID can be confirmed.
TAKE OUT FROM WINDOW WARN The condition of Intelligent Key warning function can be changed.
LOW BATT OF KEY FOB WARN The condition of low battery warning function can be changed.
I-KEY FUNCTION The condition of Intellig ent Key's function can be changed.
ANSWER BACK FUNCTION The co ndition of answer back function can be changed.
HORN WITH KEYLESS LOCK The condition of key reminder function can be set.
SELECTIVE UNLOCK FUNCTION The co ndition of selective unlock function can be changed.
HAZARD ANSWER BACK The condition of key reminder function can be set.
ANSWER BACK WITH I-KEY LOCK The condition of ke y reminder function (LOCK) can be changed.
ANSWER BACK WITH I-KEY UNLOCK The condition of ke y reminder function (UNLOCK) can be changed.
AUTO RELOCK TIMER This mode is able confirm and changed auto door lock function operation time set-
ting.
PANIC ALARM DELAY This mode is able to confirm and change panic alarm function operation delay time
setting.
P/W DOWN DELAY This mode is able to confirm and change remote window open function.
ENGINE START BY I-KEY This mode is able to confirm and change start function ON - OFF setting.
LOCK/UNLOCK BY I-KEY The condition of lock/unlock function can be set.
LUG ROOM ENGINE START This mode is able to confirm and change operation range.
Self-diag results Description Diagnosis procedure Reference page
CAN COMM
[U1000] Malfunction is detected in CAN communication. Check CAN communication system.
BCS-13
STRG COMM1
[B2013]Malfunction is detected in communication of Intel-
ligent Key unit and steering lock unit.
Check steering lock unit.
BL-124
STRG COMM2
[B2014]Malfunction is detected in communication of Intel-
ligent Key unit and steering lock unit.
Check steering lock unit.
BL-124
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INTELLIGENT KEY SYSTEMBL-111
< SERVICE INFORMATION >
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Check CAN Comm unication System InspectionINFOID:0000000001534751
1.PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of BCM.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to BCS-13, "U1000 CAN Communication Circuit".
NO >> INSPECTION END.
Check Intelligent Key Unit Power Supply and Ground CircuitINFOID:0000000001327853
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition knob OFF position.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit connector and ground.
OK or NG
Door lock non-operation warning does not
sound. Intelligent Key warning chime does not sound
1. Intelligent Key battery inspection BL-130
2. Check door request switch BL-119
3. Check inside key antennaBL-123
4. Check Intelligent Key warning buzzerBL-120
5. Replace Intelligent Key unitBL-130
Ignition knob OFF position warning chime does not sound
1. Intelligent Key battery inspection BL-130
2. Check door request switch BL-119
3. Check outside key antennaBL-121
4. Check Intelligent Key warning buzzerBL-120
5. Check ignition knob switch BL-114
6. Replace Intelligent Key unitBL-130
Door ajar alarm
1. Check CAN communications BCS-13
2. Check door request switch BL-119
3. Check outside key antennaBL-121
4. Check Intelligent Key warning buzzerBL-120
5. Check door switch BL-115
6. Intelligent Key battery inspectionBL-130
7. Replace Intelligent Key unitBL-130
Symptom Diagnoses service procedure Refer to page
ConnectorTe r m i n a l
(Wire color) Ignition knob position
M34 (+) (–) OFF ACC ON
6
(W)
Ground 0V 0V Battery voltage
10
(LG) 0V Battery voltage Battery voltage
11
(L/R) Battery voltage Battery voltage Battery voltage
MIIB0360E
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INTELLIGENT KEY SYSTEMBL-129
< SERVICE INFORMATION >
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Check Horn FunctionINFOID:0000000001327868
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-III, then perform the trouble diagnosis of
malfunction system indicated “SELF-DI AG RESULTS” of “BCM”. Refer to BCS-13, "
U1000 CAN Communica-
tion Circuit".
1.CHECK HORN FUNCTION
Does horn sound with horn switch?
YES or NO
YES >> Horn circuit is OK.
NO >> Check horn circuit. Refer to WW-48, "
Wiring Diagram - HORN -".
Check Headlamp FunctionINFOID:0000000001327869
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-III, then perform the trouble diagnosis of
malfunction system indicated “SELF-DI AG RESULTS” of “BCM”. Refer to BCS-13, "
U1000 CAN Communica-
tion Circuit".
1.CHECK HEADLAMP OPERATION
Does headlamp come on when turning lighting switch “ON”?
YES or NO
YES >> Headlamp operation circuit is OK.
NO >> Check headlamp system. Refer to LT- 5 , "
System Description".
Check IPDM E/R OperationINFOID:0000000001327870
1.CHECK IPDM E/R INPUT VOLTAGE
Check voltage between IPDM E/R connector E9 terminal 51 (SB) and ground.
OK or NG
OK >> Replace IPDM E/R.
NG >> GO TO 2.
2.CHECK IPDM E/R HARNESS
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and horn relay connector.
3. Check continuity between IPDM E/R connector E9 terminal 51 (SB) and horn relay connector E10 termi-
nal 1 (SB).
OK or NG
OK >> Check harness connection.
NG >> Repair or replace harness. 51 (SB) – Ground : Battery voltage
PIIA6403E
51 (SB) – 1 (SB) : Continuity should exist.
PIIA6404E
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