relay INFINITI FX35 2008 Owner's Guide

POWER DOOR LOCK SYSTEMBL-37
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Trouble Diagnosis Chart by SymptomINFOID:0000000001327801
Always check the “Work Flow” before troubleshooting. Refer to BL-36, "Work Flow".
*1: Lock operation
*
2: Unlock operation
*
3: Driver side
*
4: Except driver side
Check BCM Power Supply and Ground CircuitINFOID:0000000001327802
1.CHECK FUSE AND FUSIBLE LINK
 Check 50A fusible link (letter M, located in the fuse and fusible link box).
 Check 15A fuse [No. 22, located in the fuse block (J/B)].
Test item in “DOOR LOCK” Content
ALL LOCK This test is able to check all door lock actuators lock operation.
These actuators lock when “ALL LOCK” on CONSULT-III screen is touched.
ALL UNLOCK This test is able to check all door lock actuators unlock operation.
These actuators unlock when “ALL UNLOCK” on CONSULT-III screen is touched.
DR UNLOCK This test is able to check door lock actuator (driver side) unlock operation.
This actuator unlock when “DR UNLOCK” on CONSULT-III screen is touched.
OTHER UNLOCK This test is able to check all door lock actuators (except driver side) unlock operation.
These actuators unlock when “OTHER UNLOCK” on CONSULT-III screen is touched.
Symptom Diagnoses service procedure Reference
page
Key reminder door system does not operate properly. 1.Check key reminder door mode.*
*: Key reminder door mode can be changed.
First check key reminder door mode.
BL-36
2. Check BCM power supply and ground cir-
cuit
BL-37
3. Check key switch.
BL-42
4. Check door switch. BL-38
5. Replace BCM.BCS-13
Power door lock does not operate with door lock and unlock switch. 2. Check BCM power supply and ground cir-
cuit
BL-372. Check door lock and unlock switch.
BL-37
3. Replace BCM.BCS-13
Power door lock does not operate with door key cylinder operation.
(Power door lock operate properly with door lock and unlock switch.) 1. Check front door key cylinder switch.
BL-47*1
BL-47*2
2. Replace power window main switch. –
Specific door lock actuator does not operate. 1. Check door lock actuator.
BL-45
*3
BL-45*4
2. Replace BCM.
BCS-13
Rear door lock actuator (LH and RH) does not operate.*
*: Only model with intelligent key system. 1. Check select unlock relay circuit.
BL-48
Select unlock does not operate.
(All other power door lock system is “OK”.) 1. Check select unlock mode.*
*: Select unlock mode can be changed.
First check select unlock mode.
BL-36
2. Replace BCM.
BCS-13
Fuel lid lock actuator does not operate.
(All door lock actuators operates properly.) 1.Check fuel lid lock actuator.
BL-46
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BL-48
< SERVICE INFORMATION >
POWER DOOR LOCK SYSTEM
Without CONSULT-III
Check voltage between main power window switch (door lock and
unlock switch) connector and ground.
OK or NG
OK >> Front door key cylinder switch circuit driver side (unlock) is OK.
NG >> GO TO 2.
2.CHECK FRONT DOOR KEY CYLINDER SWITCH
1. Disconnect front door key cylinder switch driver side connector.
2. Check continuity between front door key cylinder switch driver side terminals 5 and 6.
OK or NG
OK >> Check the following.  Front door key cylinder switch driver side ground circuit
 Harness for open or short between power window main switch (door lock and unlock switch)and front door key cylinder switch driver side
NG >> Replace front door key cylinder switch driver side.
Check Select Unlock Relay CircuitINFOID:0000000001327811
1.CHECK SELECT UNLOCK CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM, rear door lock actuator (LH and RH), and passenger side select unlock relay connector.
3. Check continuity between BCM connector M4 terminal 50 and passenger side select unlock relay connector M30 terminal 4.
4. Check continuity between passenger side select unlock relay connector M30 terminal 4 and ground.KEY CYL UN-SW : ON
Connector
Terminal (Wire color)
Front door key cylinder
switch position Voltage (V)
(Approx.)
(+) (-)
D6 6 (OR) Ground Neutral / Lock 5
Unlock 0
PIIA6205E
Terminal Front door key cylinder switch position Continuity
56 Neutral / Lock No
Unlock Yes
PIIA6544E
50 (PU) – 4 (PU) : Continuity should exist.
4 (PU) – Ground : Continuity should not exist.
PIIB0403E
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POWER DOOR LOCK SYSTEMBL-49
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5. Check continuity between passenger side select unlock relay connector M30 terminal 3 and rear door lock actuator connector
D52 (LH), D72 (RH) terminal 3.
6. Check continuity between passenger side unlock relay connec- tor M30 terminal 3 and ground.
OK or NG
OK >> Check passenger side select unlock relay.
NG >> Repair or replace harness. 3 (PU) – 3 (PU) : Cont
inuity should exist.
3 (PU) – Ground : Continuity should not exist.
PIIB8506E
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REMOTE KEYLESS ENTRY SYSTEMBL-51
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 to BCM terminal 55
 through 50A fusible link (letter M, located in the fuse and fusible link box).
 to BCM terminal 42
 through 15A fuse [No. 22, located in the fuse block (J/B)].
 to Horn relay terminal 2
 through 15A fuse (No. 34, located in the fuse and fusible link box).
When the key switch is ON (key is inserted in ignition key cylinder), power is supplied
 to BCM terminal 37
 through key switch terminal 1 and 2
 through 15A fuse [No. 22, located in the fuse block (J/B)].
When the ignition switch is ACC or ON, power is supplied
 to BCM terminal 11
 through 10A fuse [No. 6, located in the fuse block (J/B)].
When the ignition switch is ON or START, power is supplied
 to BCM terminal 38
 through 15A fuse [No. 1, located in the fuse block (J/B)].
When the front door switch (driver side) is ON (door is OPEN), ground is supplied
 to BCM terminal 62
 through front door switch (driver side) terminal 1
 through front door switch (driver side) case ground.
When the front door switch (passenger side) is ON (door is OPEN), ground is supplied
 to BCM terminal 12
 through front door switch (passenger side) terminal 1
 through front door switch (passenger side) case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied
 to BCM terminal 63
 through rear door switch LH terminal 1
 through rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied
 to BCM meter terminal 13
 through rear door switch RH terminal 1
 through rear door switch RH case ground.
When the back door switch is ON (door is open), ground is supplied
 to BCM terminal 58
 through back door closure motor (door switch) terminals 7 and 8
 through body grounds B15 and B45
Key fob signal is inputted to remote keyless entry receiv er (the antenna of the system is built in remote keyless
entry receiver).
 to BCM terminal 20
 from remote keyless entry syst em controls operation of the
The remote keyless entry system controls operation of the
 power door lock
 hazard and horn reminder
 auto door lock
 panic alarm
 keyless power window down (open)
 room lamp and key ring illumination
OPERATED PROCEDURE
Power Door Lock Operation
BCM receives a LOCK signal from key fob. BCM locks all doors with input of LOCK signal from key fob.
When an UNLOCK signal is sent from key fob once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from key fob again within 5 seconds, all other door will be unlocked.
Power door lock operation mode can be changed using “DOOR LOCK-UNLOCK SET” mode in “WORK SUP-
PORT” of “POWER DOOR LOCK SYSTEM”.
Refer to BL-60, "
CONSULT-III Function (BCM)".
Power door lock operation mode can be changed also on the display.
Hazard and Horn Reminder
When the doors are locked or unlocked by key fob, power is supplied to hazard warning lamp and lamp flash
as follows
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REMOTE KEYLESS ENTRY SYSTEMBL-59
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*1: In the state that hazard reminder operates.
*
2: In the state that room lamp switch is in “DOOR” position.
Terminal and Reference Value for IPDM E/RINFOID:0000000001327819
*: In the state that horn reminder operates. 44 Y
Driver door lock actuator
(Unlock) Output
Door lock / unlock switch
(Free
→ Unlock) 0
→ Battery voltage
45 G/W Left turn signal lamp Output When door lock or unlock is operat-
ed using key fob.*
1
(ON
→ OFF) Battery voltage
→ 0
46 BR/W Right turn signal lamp Output When door lock or unlock is operat-
ed using key fob.*
1
(ON
→ OFF) Battery voltage
→ 0
47 Y/R Step lamp output signal Output Step lamp is lighting. 0
Step lamp is being turned off. Battery voltage
48 PU/W Room lamp output signal Output Room lamp is lighting.*
20
Room lamp is being turned off.*
2Battery voltage
49 B Ground — — 0
50 PU Door lock actuator (Lock) Output Door lock / unlock switch
(Free
→ Lock) 0
→ Battery voltage
51 W/B Passenger and rear doors
lock actuator (Unlock) OutputDoor lock / unlock switch
(Free
→ Unlock) 0
→ Battery voltage
52 B Ground — — 0
54 W Battery power supply
(power window)
Input — Battery voltage
55 G Battery power supply (Fus-
ible link)
Input — Battery voltage
58 L Back door switch Input OFF (Door close)
→ ON (Door
open) 9
→ 0
62 W Front door switch (Driver
side) InputOFF (Door close)
→ ON (Door
open) Battery voltage
→ 0
63 P Rear door switch LH Input OFF (Door close)
→ ON (Door
open) Battery voltage
→ 0
Te r m i -
nal Wire
Color ItemSignal In-
put/ out-
put Condition
Voltage (V)
Approx.
Te r m i -nal Wire
Color ItemSignal
Input/
Output Condition
Voltage (V)
Approx.
38 B Ground — — 0
48 L CAN H Input/
Output ——
49 R CAN L Input/
Output ——
51 SB Horn relay Output When door lock is operated using
key fob* (OFF
→ ON) Battery voltage
→ 0
60 B Ground — — 0
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REMOTE KEYLESS ENTRY SYSTEMBL-71
< SERVICE INFORMATION >
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5.CHECK REMOTE KEYLESS ENTR Y RECEIVER GROUND CIRCUIT
1. Check continuity between remote keyless entry receiver con- nector M78 terminal 1 (B) and BCM connector M1 terminal 18
(B)
OK or NG
OK >> Check harness connection.  If it is OK, replace BCM.
 If it is NG, repair or replace malfunction part.
NG >> Repair or replace the harness.
6.CHECK REMOTE KEYLESS ENTR Y RECEIVER SIGNAL CIRCUIT
1. Check continuity between remote keyless entry receiver connector M78 terminal 2 (Y) and BCM connec-
tor M1 terminal 20 (Y).
2. Check continuity between remote keyless entry receiver connector M78 terminal 2 (Y) and ground.
OK or NG
OK >> Check harness connection.  If it is OK, replace remote keyless entry receiver.
 If it is NG, repair or replace malfunction part.
NG >> Repair or replace harness.
Check IPDM E/R OperationINFOID:0000000001327828
1.CHECK IPDM E/R INPUT VOLTAGE
Check voltage between IPDM E/R connector E9 terminal 51 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. 1 (B) – 18 (B) : Continuity should exist.
PIIB3952E
2 (Y) – 20 (Y) : Continuity should exist.
2 (Y) – Ground : Continuity should not exist.
PIIA9633E
51 (SB) – Ground : Battery voltage
PIIA6403E
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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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INTELLIGENT KEY SYSTEMBL-101
< SERVICE INFORMATION >
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Terminal and Reference Va lue for Steering Lock unitINFOID:0000000001327843
Terminal and Reference Value for BCMINFOID:0000000001327844
39 R/Y Park position switch Input LOCK A/T selector lever in “P” position. 0
A/T selector lever in other posi-
tion.
Battery voltage
40 BR/
W Door lock relay Output LOCK Door request switch (passenger
side) pressedBattery voltage
→ 0 → Battery
voltage
Te r -
minal Wire
color Item Signal
Input/
output Condition
Voltage (V)(Approx.)
Ignition
knob po-
sition Operation or conditions
Te r -
minal Wire
color Item Signal
Input/
output Condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1 L/R Power source (Fuse) Input LOCK — Battery voltage
2R/W Steering lock unit pow-
er supply Input LOCK — 5
3R/B Steering lock unit com-
munication signal
Input LOCKPress ignition knob with In-
telligent Key inside vehicle.
Other than the above 5
4Y/B Steering lock unit
ground —— — 0
SIIA1911J
Te r m i -
nal Wire
color ItemSignal
Input/
output Condition
Voltage (V)
(Approx.)
1PU Key ring illumination
output signal OutputKey ring illumination is lighting. Battery voltage
Key ring illumination is being turned off. 0
12 P/B Front door switch (Pas-
senger side)
Input Door open (ON)
→ Close (OFF) 0 → Battery voltage
13 P/L Rear door switch RH Input Door open (ON) → Close (OFF) 0 → Battery voltage
37 B/W Key switch Input Insert mechanical key from ignition key
cylinder.
Battery voltage
Remove mechanical key from ignition
key cylinder. 0
38 W/L Ignition switch (ON) Input Ignition switch is in ON or START posi-
tion
Battery voltage
39 L CAN-H Input/
Output ——
40 P CAN-L Input/
Output ——
41 R/B Battery saver output
signal Output30 minutes after ignition switch is turned
to OFF
0
Ignition switch is in ON position Battery voltage
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BL-102
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
*1: In the state that hazard reminder operates.
*2: In the state that room lamp switch is in “DOOR” position.
Terminal and Reference Value for IPDM E/RINFOID:0000000001327845
42 L/R Power source (Fuse) Input — Battery voltage
44 YDriver door lock actua-
tor (Unlock) Output
Door lock / unlock switch
(Free
→ Unlock) 0
→ Battery voltage
45 G/W Left turn signal lamp Output When door lock or unlock is operated us-
ing Intelligent Key.*
1
(ON
→ OFF) Battery voltage
→ 0
46 BR/W Right turn signal lamp Output When door lock or unlock is operated us-
ing Intelligent Key.*
1
(ON
→ OFF) Battery voltage
→ 0
47 Y/R Step lamp output signal Output Step lamp is lighting. 0
Step lamp is being turned off. Battery voltage
48 PU/W Room lamp output sig-
nal OutputRoom lamp is lighting.*
20
Room lamp is being turned off.*
2Battery voltage
49 B Ground — — 0
50 PU Door lock actuator
(Lock) Output
Door lock / unlock switch
(Free
→ Lock) 0
→ Battery voltage
51 W/B Passenger and rear
doors lock actuator
(Unlock) Output
Door lock / unlock switch
(Free
→ Unlock) 0
→ Battery voltage
52 B Ground — — 0
54 W Power source (power
window)
Input — Battery voltage
55 G Power source (Fusible
link) Input — Battery voltage
58 L Back door switch Input Back door open (ON) → Close (OFF) 0 → 9
62 W Front door switch (Driv-
er side) Input Door open (ON)
→ Close (OFF) 0 → Battery voltage
63 P Rear door switch LH Input Door open (ON) → Close (OFF) 0 → Battery voltage
Te r m i -
nal Wire
color ItemSignal
Input/
output Condition
Voltage (V)
(Approx.)
Te r m i - nal Wire
color ItemSignal
Input/
output Condition
Voltage (V)
(Approx.)
38 B Ground — — 0
48 L CAN – H Input/
Output ——
49 R CAN – L Input/
Output ——
51 SB Horn relay Output When panic alarm is operated using In-
telligent Key (OFF
→ ON) Battery voltage
→ 0
60 B Ground — — 0
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INTELLIGENT KEY SYSTEMBL-105
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ACTIVE TEST
List of Operation Related PartsINFOID:0000000001327850
Parts marked with × are the parts related to operation.
Monitor item [OPERATION] Description
PUSH SWITCH [ON/OFF] Displays status (Ignition knob switch ON/i
gnition knob switch OFF) as judged from
ignition knob switch signal.
KEY SW [ON/OFF] Displays status (Key inserted: ON/Key removed: OFF) as judged by key switch.
DR REQ SW [ON/OFF] Displays status (Operable: ON/Non-operable: OFF) as judged from door request
switch (driver
side) signal.
AS REQ SW [ON/OFF] Displays status (Operable: ON/Non-operable: OFF) as judged from door request
switch (passenger side) signal.
BD/TR REQ SW [ON/OFF] Displays status (Operable: ON/Non-operable: OFF) as judged from door request
switch (back door) signal.
IGN SW [ON/OFF] Displays status (Ignition knob ON position: ON/Ignition knob OFF position: OFF) as
judged from ignition switch signal.
ACC SW [ON/OFF] Displays status (Ignition switch ACC position: ON/Ignition switch OFF position:
OFF) as judged from ignition switch signal.
DOOR STAT SW [ON/OFF] Displays status from door unlock sensor ON/OFF condition.
STOP LAMP SW [ON/OFF] Displays status (Brake pedal depress: ON/brake pedal not depress: OFF) as
judged from stop lamp switch signal.
P RANGE SW [ON/OFF] Displays status from park/neutral position switch ON/OFF condition.
BD OPEN SW [ON/OFF] Displays status (Back door open: ON/Back door closed: OFF) as judged from back
door opener switch signal.
Monitor item Description
DOOR LOCK/UNLOCK This test is able to check all door lock actuators lock/unlock operation. These actu-
ators lock when “ON” on CONSULT-III screen is touched.
OUTSIDE BUZZER This test is able to check Intelligent Key warning buzzer operation. The buzzer will
be activated on when “ON” on CONSULT-III screen is touched.
INSIDE BUZZER This test is able to check buzzer (built-in combination meter) operation. The buzzer
will be activated on when “ON” on CONSULT-III screen is touched.
INDICATOR This test is able to check warning lamp operation. The lamp will be turned on when
“ON” on CONSULT-III screen is touched.
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 unit
Stop lamp switch Detention switch
Passenger side select unlock relay
Door lock/unlock operation using Intelligent
Key remote controller button operation ×××××××
Door lock/unlock operation using door re-
quest switch operation ×××××××××
Selective door unlock function using door
request switch operation ××××××× ×
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