relay INFINITI FX35 2008 Workshop Manual

BL-106
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
Trouble Diagnosis Symptom Chart
INFOID:0000000001327851
ALL FUNCTIONS OF THE INTELLIGENT KEY ARE NOT OPERATING
Selective door unlock function using Intelli-
gent Key remote controller button operation ××× ×××
Door lock/unlock operation using mechani-
cal key ×
Ignition knob rotation permission using In-
telligent Key ××× × × × × ×
Ignition knob rotation permission using me-
chanical key ×× × × ×× ×
Engine start using Intelligent Key × × × ××× ×××
Engine start using mechanical key ×× ×× ×××
Key reminder door lock operation ××××××××
Selector lever reminder operation ×× ××× ×
Ignition switch return forgotten warning ××× × × × ×
Ignition key warning (when using mechani-
cal key) ××××
Ignition switch OFF position warning (for in-
side car: when door closed) ×××× × × ×
Ignition switch OFF position warning (for
outside car: when door opened/closed) ×××× × ×× × ××
Warning for removal of Intelligent Key to
outside the car (when door open/closed) ××× × × ×× × × ×
Warning for removal of Intelligent Key to
outside the car (from window) ××× × × × × ×
Door lock non-operation warning × ××× ××× × ×
Intelligent key low battery warning ×× ×××
Will not operate if there is a malfunction in
the area where there is a ×.
Intelligent Key
Key switch
Ignition knob switch ACC switch
Ignition switch
Door unlock sensor
Door switch
Door request switch
Inside key antenna
Out side key antenna
Intelligent Key warning buzzer Intelligent Key unit
CAN communication system
BCM
Combination meter
Steering lock unitSto p l am p s w it ch Detention switch
Passenger side select unlock relay
Symptom Diagnoses service procedure Refer to page
“KEY” and “P shift” warning lamps in combination
meter do not light up at all. 1.
Check Intelligent Key unit power supply and ground cir-
cuit B L - 111
2. Check CAN co
mmunication BCS-13
3. Replace Intelligent Key unit BL-130
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BL-108
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
ENGINE START FUNCTION MALFUNCTION
Intelligent Key Operation Inspection
Symptom Diagnoses service procedure Refer to page
Door lock/unlock does not operate when door
request switch operation is used (power door
lock system is normal). 1. Check door lock/unlock setting
BL-104
2. Check outside key antennaBL-121
3. Intelligent Key battery inspectionBL-130
4. Replace Intelligent Key unitBL-130
Door lock/unlock do not operate using door re-
quest switch operated (power door lock system
is normal).1. Check door switch
BL-1152. Check key switch (Intelligent Key unit input)BL-112
3. Check ignition knob switchBL-114
4. Replace Intelligent Key unitBL-130
Driver side selective door unlock function does
not operate, when door request switch is operat-
ed.
(All other door lock function is OK.)1. Check selective door unlock setting
BL-104
2. Replace BCMBCS-13
Passenger side selective door unlock function
does not operate, when door request switch is
operated.
(All other door lock function is OK.)1. Check selective door unlock setting
BL-104
2. Check passenger side select unlock relayBL-128
3. Replace Intelligent Key unitBL-130
Hazard lamps do not flash during door lock op-
eration using door request switch operated.
(Turn signal lamp operation is normal.)
(All other door lock function is OK.)1. Check key reminder setting
BL-104
2. Replace BCMBCS-13
3. Replace Intelligent Key unit BL-130
Hazard lamps do not flash during door lock op-
eration using door request switch operated.
(Turn signal lamps do not operate.)Check hazard function
BL-128

Intelligent Key warning buzzer does not sound
during door lock/unlock operation using Intelli-
gent Key (regardless of whether Intelligent Key
remote controller button or request switch oper-
ation is used). 1. Check if the operation confirmation Intelligent Key
warning buzzer was cancelled by the CONSULT-III
settings change function BL-104
2. Check Intelligent Key warning buzzer
BL-120
3. Replace Intelligent Key unitBL-130
Door lock/unlock operation confirmation Intelli-
gent Key warning buzzer sounds, but door lock
actuator does not operate. (And hazard lamps
do not flash.)1. Check CAN communication
BCS-13
2. Replace Intelligent Key unit BL-130
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BL-128
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
Check continuity between A/T device (park position switch) connec-
tor M67 terminal 2 (B) and ground.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace harness.
Check Select Unlock RelayINFOID:0000000001327866
1.CHECK SELECT UNLOCK RELAY POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect passenger side select unlock relay connector.
3. Check voltage between passenger side select unlock relay con- nector M30 terminal 1 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace passenger side select unlock relay power supply circuit.
2.CHECK HARNESS
1. Disconnect Intelligent Key unit connector.
2. Check continuity between passenger side select unlock relay connector M30 terminal 2 and Intelligent Key unit connector
M34 terminal 40.
3. Check continuity between passenger side select unlock relay connector M30 terminal 2 and ground.
OK or NG
OK >> Replace passenger side select unlock relay.
NG >> Repair or replace harness between passenger side select unlock relay and Intelligent Key unit.
Check Hazard FunctionINFOID:0000000001327867
1.CHECK HAZARD WARNING LAMP
Does 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
.
2 (B) – Ground : Continuity should exist.
PIIB9066E
1 (L/R) – Ground : Approx. 12V
PIIA6954E
2 (BR/W) – 40 (BR/W) : Continuity should exist.
2 (BR/W) – Ground : Conti
nuity should not exist.
PIIA6955E
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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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VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-165
< SERVICE INFORMATION >
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Make sure the system is in the armed phase. (The security indicator lamp brinks every 2.4 seconds.)
When the following operation 1 or 2 is performed, t he system sounds the horns and flashes the headlamps for
about 50 seconds.
1. Hood, back door or any door is opened during armed phase.
2. Disconnecting and connecting the battery connector before canceling armed phase.
POWER SUPPLY
Power is supplied at all times
 through 10A fuse [No.19, located in the fuse block (J/B)]
 to security indicator lamp terminal 1.
 through 50A fusible link (letter M, located in the fuse and fusible link box)
 to BCM terminal 55.
 through 15A fuse [No.22, located in the fuse block (J/B)]
 to BCM terminal 42.
 through 15A fuse [No.34, located in the fuse and fusible link box]
 to horn relay terminal 2.
 through 10A fuse [No.71, located in the IPDM E/R]
 to IPDM E/R internal CPU.
 through 15A fuse [No.78, located in the IPDM E/R]
 to IPDM E/R internal CPU.
With the ignition switch in the ACC or ON position, power is supplied
 through 10A fuse [No. 6, located in the fuse block (J/B)]
 to BCM terminal 11.
INITIAL CONDITION TO ACTIVATE THE SYSTEM
The operation of the vehicle security system is controlled by the doors, hood and back door.
To activate the vehicle security system, BCM must receive signals indicating the doors, hood and back door
are closed and the doors are locked by key fob, Intelligent Key or ignition key.
When a door is open, BCM terminal 12 (passenger side door), 13 (rear RH door), 62 (driver side door), 63
(rear LH door) receives a ground signal from each door switch.
When front door LH is unlocked by power window main switch (door lock and unlock switch),
BCM terminal 22 receives a signal from terminal 14 of power window main switch with power window serial
link.
When front door RH is unlocked by front power window s witch (passenger side) (door lock and unlock switch),
BCM terminal 22 receives a signal from terminal 16 of front power window switch (passenger side) with power
window serial link.
When the hood is open, IPDM E/R receives a ground signal
 to IPDM E/R terminal 56
 through hood switch terminal 2
 through hood switch terminal 1
 through body grounds E21, E50 and E51.
The IPDM E/R then sends a signal to the BCM through the CAN SYSTEM.
When the back door is open,
 to BCM terminal 58
 through back door closure motor terminal 7
 through back door closure motor terminal 8
 through body grounds B15 and B45.
VEHICLE SECURITY SYSTEM ALARM OPERATION
The vehicle security system is triggered by
 opening a door
 opening the back door
 opening the hood
 detection of battery disconnect and connect.
The vehicle security system will be triggered once the system is in armed phase,
When BCM receives a ground signal at terminals 12 (p assenger side door), 13 (rear RH door), 58 (back door),
62 (driver side door), 63 (rear LH door), or rece ives a signal from the IPDM E/R (hood switch).
When the vehicle security system is triggered,
ground is supplied intermittently from IPDM E/R terminals 38 and 60.
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BL-166
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
When headlamp high relay (with built-in IPDM E/R) and horn relay are energized and then power is supplied
to headlamps (LH and RH) and horns (HIGH and LOW).
The headlamps flash and the horn sounds intermittently.
The alarm automatically turns off after 50 seconds, but will reactivate if the vehicle is tampered with again.
VEHICLE SECURITY SYSTEM DEACTIVATION
To deactivate the vehicle security system, a door or the back door must be unlocked with the key, key fob or
Intelligent Key.
When the key is used to unlock a door, BCM terminal 22 receives signal
 from terminal 14 of the power window ma in switch (door lock and unlock switch).
When the BCM receives either one of these signals or unl ock signal from key cylinder switch, key fob or Intel-
ligent Key, the vehicle security sy stem is deactivated. (Disarmed phase)
PANIC ALARM OPERATION
Remote keyless entry system may or may not operat e vehicle security system (horn and headlamps) as
required.
When the remote keyless entry system is triggered, ground is supplied intermittently from IPDM E/R terminals
38 and 60.
When headlamp relay (which built-in IPDM E/R) and hor n relay are energized and then power is supplied to
headlamps (LH and RH) and horns (HIGH and LOW).
The headlamp flashes and the hor n sounds intermittently.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from key fob or Intelligent
Key.
CAN Communication System DescriptionINFOID:0000000001327906
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication s peed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CA N communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitINFOID:0000000001327907
Refer to LAN-43, "CAN System Specification Chart".
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BL-174
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Terminal and Reference Value for IPDM E/R
INFOID:0000000001327911
CONSULT-III FunctionINFOID:0000000001327912
WORK SUPPORT
DATA MONITOR
62 W Front door switch
driver side signal Input ON (Open)
→ OFF (Closed) 0 → Battery voltage
63 P Rear door (LH) switch sig-
nal Input ON (Open)
→ OFF (Closed) 0 → Battery voltage
Terminal Wire color Item
Signal
Input/
output Condition
Voltage (V)
(Approx.)
Terminal Wire color Item Signal
Input/
output Condition
Voltage (V)
(Approx.)
20 LG Headlamp low (RH) Output Lighting switch 2ND position
ON
→ OFF Battery voltage
→ 0
27 BR Headlamp high (RH) Output Lighting switch HIGH or PASS
position
ON
→ OFF Battery voltage
→ 0
28 SB Headlamp high (LH) Output Lighting switch HIGH or PASS
position
ON
→ OFF Battery voltage
→ 0
30 GY Headlamp low (LH) Output Lighting switch 2ND position
ON
→ OFF Battery voltage
→ 0
38 B Ground (power) — — 0
48 L CAN-H Input/
Output ——
49 R CAN-L Input/
Output ——
51 SB Horn relay control signal Output Panic alarm is operating 0
Other than above Battery voltage
56 LG Hood switch signal Input ON (Open) → OFF (closed) 0 → Battery voltage
60 B Ground (signal) — — 0
BCM diagnosis test item Check item diagnosis test mode Content
Theft alm WORK SUPPORT Change setting of each function.
DATA MONITOR Displays the input data of BCM real time. ACTIVE TEST Gives a drive signal to a load to check the operation.
Test Item Description
SECURITY ALARM SET This mo de is able to confirm and change security alarm ON-OFF setting.
THEFT ALM TRG The switch which triggered vehicle security alarm is recorded. This mode is able to confirm and
erase the record of vehicle security alarm. The trigger data can be erased by touching “CLEAR” on
CONSULT-III screen.
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VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-183
< SERVICE INFORMATION >
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With CONSULT-III
Check (“THEFT IND”) in “ACTIV E TEST” mode with CONSULT-III.
Without CONSULT-III
Check voltage between BCM connector and ground.
OK or NG
OK >> Security indicator lamp is OK.
NG >> GO TO 2.
2.CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and security indicator lamp connector.
3. Check continuity between BCM connector M3 terminal 23 and security indicator lamp connector M38 terminal 2.
OK or NG
OK >> Check the following.  Harness for open or short between BCM and securityindicator lamp.
 10A fuse [No.19, located in fuse block (J/B)]
NG >> Repair or replace harness between BCM and security indicator lamp.
Diagnosis Procedure 3INFOID:0000000001327918
FRONT DOOR KEY CYLINDER SWITCH CHECK
1.CHECK KEY CYLINDER SWITCH OPERATION
Check door key cylinder switch using key.
Do doors lock / unlock when using the key?
YES >> Front door key cylinder switch operation is OK.
NO >> Check door key cylinder switch circuit. Refer to GW-43, "
Check Front Door Key Cylinder Switch".
Diagnosis Procedure 4INFOID:0000000001327919
VEHICLE SECURITY HORN ALARM CHECK
1.CHECK HORN OPERATION
Check if horn sounds with horn switch.
Does horn operate?
YES >> Check harness for open or shor t between IPDM E/R and horn relay.
NO >> Check horn circuit. Refer to WW-48
.
Diagnosis Procedure 5INFOID:0000000001327920
VEHICLE SECURITY HEADLAMP ALARM CHECK
Perform operation shown on display indicator lamp
should illuminate.
Connector Terminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
M3 23 (G/OR) Ground Illuminates 0
Goes off Battery voltage
PIIA6230E
23 (G/OR) – 2 (G/OR) : Co
ntinuity should exist.
PIIA6231E
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BRC-24
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Monitor item Display content Data monitor
Condition Reference value in
normal operation
SLCT LVR POSI A/T shift position P: P position
R: R position
N: N position
D: D position
GEAR A/T gear position 1: 1st gear
2: 2nd gear
3: 3rd gear
4: 4th gear
5: 5th gear
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSOR Wheel speed Vehicle stopped 0 [km/h (MPH)]
Vehicle running (Note 1)
Almost in accordance
with speedometer
display
(within
± 10 %)
ACCEL POS SIG Open/close condition of throttle valve
(linked with a
ccelerator pedal) Accelerator pedal not depressed
(Engine stopped)
0 %
Depress accelerator pedal
(Engine stopped) 0 to 100 %
ENGINE SPEED With engine running With engine stopped 0 rpm
Engine running
Almost in accordance
with tachometer dis-
play
STR ANGLE SIG Steering angle detected by steering angle
sensor Straight-ahead Approx. 0 deg
Steering wheel turned –756 to 756 deg
YAW RATE SEN Yaw rate detected by yaw rate sensor Vehicle stopped Approx. 0 d/s
Vehicle running –100 to 100 d/s
SIDE G-SENSOR Transverse G detected by side G sensor Vehicle stopped
Approx. 0 m/s
2
Vehicle running–16.7 to 16.7 m/s2
PRESS SENSORBrake fluid pressure detected by pressure
sensor With ignition switch turned ON and brake
pedal released
Approx. 0 bar
With ignition switch turned ON and brake
pedal depressed 0 to 170 bar
BATTERY VOLT Battery voltage supplied to ABS actuator
and electric unit (control unit) Ignition switch ON 10 to 16 V
STOP LAMP SW Brake pedal operation Brake pedal depressed ON
Brake pedal not depressed OFF
OFF SW VDC OFF switch ON/OFF status VDC OFF switch ON
(When VDC OFF indicator lamp is ON)
ON
VDC OFF switch OFF
(When VDC OFF indicator lamp is OFF) OFF
ABS WARN LAMP ABS warning lamp ON condition (Note 2) ABS warning lamp ON ON
ABS warning lamp OFF OFF
MOTOR RELAY Operation status of motor and motor relay Ignition switch ON or engine running
(ABS not operated)
OFF
Ignition switch ON or engine running (ABS
operated) ON
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TROUBLE DIAGNOSISBRC-25
< SERVICE INFORMATION > [VDC/TCS/ABS]
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ACTUATOR RLY Actuator relay operation status Actuator (solenoid) is active
(“ACTIVE TEST” with CONSULT-III)
ON
When actuator relay is inactive
(in fail-safe mode) OFF
OFF LAMP VDC OFF indicator lamp status
(Note 3) When VDC OFF indicator lamp is ON ON
When VDC OFF indicator lamp is OFF OFF
SLIP LAMP SLIP indicator lamp status
(Note 4) When SLIP indicator lamp is ON ON
When SLIP indicator lamp is OFF OFF
FR LH IN SOL
FR LH OUT SOL
FR RH IN SOL
FR RH OUT SOL
RR RH IN SOL
RR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL Solenoid valve operation Actuator (solenoid) is active (“ACTIVE
TEST” with CONSULT-III) and actuator re-
lay is active (ignition switch ON)
ON
When actuator (solenoid) is not active or
actuator relay is inactive (in fail-safe
mode) OFF
CV1
CV2
SV1
SV2 VDC/TCS switch-over valve status When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT-III)
and actuator relay is active (ignition switch
ON)
ON
When actuator (switch-over valve) is not
active or actuator relay is inactive (in fail-
safe mode) OFF
DECEL G-SEN Longitudinal acceleration detected by decel
G sensor (Note 5) Vehicle stopped Approx. 0 G
Vehicle running -1.7 to +1.7 G
FLUID LEV SW ON/OFF status of brake fluid level switch When brake fluid level switch ON ON
When brake fluid level switch OFF OFF
VDC FAIL SIG
TCS FAIL SIG
ABS FAIL SIG
EBD FAIL SIG Fail signal status VDC fail
TCS fail
ABS fail
EBD fail
ON
VDC normal
TCS normal
ABS normal
EBD normal OFF
EBD WARN LAMP Brake warning lamp on condition
(Note 6) Brake warning lamp ON ON
Brake warning lamp OFF OFF
EBD SIGNAL EBD operation EBD active ON
EBD not active OFF
ABS SIGNAL ABS operation ABS active ON
ABS not active OFF
TCS SIGNAL TCS operation TCS active ON
TCS not active OFF
VDC SIGNAL VDC operation VDC active ON
VDC not active OFF
CRANKING SIG CRANKING status Cranking ON
Not cranking OFF
4WD FAIL REQ ETS fail status (Note 5) ETS fail ON
ETS normal OFF
Monitor item Display content
Data monitor
Condition Reference value in
normal operation
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