relay INFINITI FX35 2008 Service Manual

GW-60
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
REAR WINDOW DEFOGGER
Component Parts and Harness Connector LocationINFOID:0000000001327998
System DescriptionINFOID:0000000001327999
The rear window defogger system is controlled by BC M (Body Control Module) and IPDM E/R (Intelligent
Power Distribution Module Engine Room).
The rear window defogger operates only for approximately 15 minutes.
Power is at all times supplied
 through 20A fuse [No. 75, located in the IPDM E/R]
 to rear window defogger relay terminals 3,
 through 20A fuse [No. 80, located in the IPDM E/R]
 to rear window defogger relay terminals 6,
 through 15A fuse [No. 32, located in the fuse block (J/B)]
 to A/C and AV switch 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.
With the ignition switch turned to ON or START position,
Power is supplied
 through 15A fuse [No. 1, located in the fuse block (J/B)]
 to BCM terminal 38.
 through 10A fuse [No. 12, located in the fuse block]
 to rear window defogger relay terminal 1,
Ground is supplied
 to BCM terminal 49 and 52
1. a: Fusible link 50A letter M
b: Fuse 15A No.32 2. a: Fuse block (J/B) M1, M2, E201
b: BCM M3, M4 3. IPDM E/R E4, E8, E9
4. Rear window defogger relay E13 5. A/C and AV switch M64 (Rear window defogger switch)6. a: Rear window defogger D104
b: Rear window defogger D114
PIIB8568E
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REAR WINDOW DEFOGGERGW-61
< SERVICE INFORMATION >
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 through body grounds M35, M45 and M85,
 to A/C and AV switch terminal 5
 through body grounds M35, M45 and M85,
 to IPDM E/R terminals 38 and 60
 through body grounds E21, E50 and E51.
When rear window defogger switch in A/C and AV switch is turned to ON,
Ground is supplied
 to BCM terminal 9
 through A/C and AV switch terminal 16
 through A/C and AV switch terminal 5 and
 through body grounds M35, M45 and M85.
Then rear window defogger switch is illuminated.
Then BCM recognizes that rear window defogger switch is turned to ON.
Then it sends rear window defogger switch signals to IPDM E/R, display control unit via DATA LINE (CAN H,
CAN L).
When display control unit receives rear window defogger switch signals, and display on the screen.
When IPDM E/R receives rear window defogger switch signals,
Ground is supplied
 to rear window defogger relay terminal 2
 through IPDM E/R terminal 52
 through IPDM E/R terminals 38 and 60 and
 through body grounds E21, E50 and E51.
And then rear window defogger relay is energized.
When rear window defogger relay is turned ON, signals are transmitted.
 through rear window defogger relay terminals 5 and 7
 to rear window defogger terminal 1
Rear window defogger terminal 2 is grounded through grounds B15 and B45.
With power and ground supplied, rear window def ogger filaments heat and defog the rear window.
When rear window defogger relay is turned to ON,
Power is supplied
 through rear window defogger relay terminal 7
 through fuse block (J/B) terminal 2C
 through 15A fuse [No. 8, located in the fuse block (J/B)] and
 through fuse block (J/B) terminal 5B
 to door mirror defogger (driver side and passenger side) terminal 4.
Door mirror defogger (driver side and passenger side) terminal 3 is grounded through body grounds M35, M45
and M85.
With power and ground supplied, rear window defogger filaments heat and defog the rear window and door
mirror defogger filaments heat and defog the mirror.
CAN Communication System DescriptionINFOID:0000000001328000
CAN (Controller Area Network) is a serial communication li ne for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed 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 CAN 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:0000000001328001
Refer to LAN-43, "CAN System Specification Chart".
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REAR WINDOW DEFOGGERGW-67
< SERVICE INFORMATION >
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Terminal and Reference Value for BCMINFOID:0000000001328004
Terminal and Reference Value for IPDM E/RINFOID:0000000001328005
CONSULT-III Function (BCM)INFOID:0000000001328006
DATA MONITOR
ACTIVE TEST
Te r m i n a l Wire col-
or ItemSignal In-
put/
Output Condition
Voltage (V)
(Approx.)
9L/W Rear window defogger
switch signal InputWhen rear window defogger switch is
pressed.
0
When rear window defogger switch is OFF. 5
38 W/L Ignition switch ON or START Input Ignition switch (ON or START position) Battery voltage
39 L CAN − H Input/
Output ——
40 P CAN − L Input/
Output ——
42 L/R Power source (Fuse) Input — Battery voltage
49 B Ground (signal) — — 0
52 B Ground (power) — — 0
55 G Power source (Fusible link) Input — Battery voltage
Te r m i n a l Wire col-
or Item Signal
Input/
Output Condition
Voltage (V)
(Approx.)
5 R Battery power supply Output — Battery voltage
6 W Battery power supply Output — Battery voltage
38 B Ground (Power) — — 0
48 L CAN − H Input/
Output ——
49 R CAN − L Input/
Output ——
52 G Rear window defogger relay
control signal
InputWhen rear window defogger switch is ON. 0
When rear window defogger switch is
OFF.
Battery voltage
60 B Ground (Signal) — — 0
BCM diagnostic test item Check item diagnostic test mode Content
REAR DEFOGGER Data monitor Displays the input data of BCM in real time.
Active test Gives a drive signal to a load to check the operation.
Monitor item Content
REAR DEF SW Displays “Press (ON)/others (OFF)” status determined with the rear window defogger switch.
IGN ON SW Displays “IGN (ON)/OFF” status determined with the ignition switch signal.
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REAR WINDOW DEFOGGERGW-71
< SERVICE INFORMATION >
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2. Remove rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger relay connector E13 terminals 1, 3, 6 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK REAR WINDOW DEFOGGER RELAY
Check continuity between rear wi ndow defogger terminals 3 and 5, 6
and 7.
OK or NG
OK >> GO TO 4.
NG >> Replace rear window defogger relay.
4.CHECK REAR WINDOW DEFOGG ER RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Installation rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> Rear window defogger power supply circuit is OK.
NG >> GO TO 5.
5.CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and rear window defogger relay. 1 (OR) – Ground : Battery voltage
3 (W) – Ground : Battery voltage
6 (R) – Ground : Battery voltage
PIIA4233E
Terminal Condition Continuity
35 12V direct current supply
between terminals 1 and 2
Ye s
No current supply No
67 12V direct current supply
between terminals 1 and 2
Ye s
No current supply No
SEC202B
Connector Terminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
E9 52 (G) Ground When rear window defog-
ger switch ON
0
When rear window defog-
ger switch OFF Battery
voltage
PIIA6210E
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GW-72
< SERVICE INFORMATION >
REAR WINDOW DEFOGGER
3. Check continuity between IPDM E/R connector E9 terminal 52and rear window defogger relay connector E13 terminal 2.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness.
6.CHECK REAR WINDOW DEFOGGER RELAY OUTPUT SIGNAL
1. Connect IPDM E/R connector and rear window defogger relay.
2. Turn ignition switch ON.
3. Check voltage between IPDM E/R connector E9 terminal 52 and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace IPDM E/R.
Check Rear Window Defogger CircuitINFOID:0000000001328013
1.CHECK POWER SUPPLY CIRCUIT 1
1. Turn ignition switch OFF.
2. Disconnect rear window defogger connector.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger connector and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF. 52 (G) – 2 (G) : Continuity should exist.
PIIA6211E
52 (G) – Ground : Battery voltage
PIIA6210E
Connector
Terminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
D104 1(W) Ground Rear window defogger
switch ON.
Battery voltage
Rear window defogger
switch OFF. 0
PIIA9347E
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REAR WINDOW DEFOGGERGW-73
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2. Check continuity between rear window defogger connector D114 terminal 2 and ground.
OK or NG
OK >> Check filament. Refer to GW-77, "Check Filament"
 If filament is OK, check condition of harness and con-
nector.
 If filament is NG, repair filament.
NG >> Repair or replace harness.
3.CHECK REAR WINDOW DEFOGGER RELAY CIRCUIT
1. Turn ignition switch OFF.
2. Remove rear window defogger relay.
3. Check continuity between rear window defogger relay connector E13 terminal 5, 7 and rear window defogger connector D104 ter-
minal 1.
OK or NG
OK >> Check condition of harness and connector.
NG >> Repair or replace harness.
Check Door Mirror Defogger Power Supply CircuitINFOID:0000000001328014
1.CHECK FUSE
 Check 15A fuse [No.8, loca ted in fuse block (J/B)]
NOTE:
Refer to GW-60, "
Component Parts and Harness Connector Location".
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate c ause of malfunction before installing new fuse. Refer to
PG-3
.
2.CHECK POWER SUPPLY CIRCUIT 1
1. Turn ignition switch ON.
2. Check voltage between fuse block (J/B) connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK POWER SUPPLY CIRCUIT 2 2 (B)
− Ground : Continuity should exist.
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5 (B) – 1 (W) : Cont inuity should exist.
7 (B) – 1 (W) : Cont inuity should exist.
PIIA9349E
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
E201 2C (B) Ground Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF 0
PIIA2388E
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HEADLAMP - XENON TYPE -LT-5
< SERVICE INFORMATION >
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HEADLAMP - XENON TYPE -
Component Parts and Har ness Connector LocationINFOID:0000000001328265
System DescriptionINFOID:0000000001328266
Control of the headlamp system operation is dependent upon t he position of the combination switch (lighting
switch). When the lighting switch is placed in the 2ND position, the BCM (body control module) receives input
signal requesting the headlamps (and tail lamps) illuminate. This input signal is communicated to the IPDM E/
R (intelligent power distribution module engine room) through the CAN communication lines. The CPU (central
processing unit) located in the IPDM E/R contro ls the headlamp high and headlamp low relay coils. These
relays, when energized, direct power to the respective headlamps, which then illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
OUTLINE
Power is supplied at all times
 to headlamp high relay, located in IPDM E/R
 to headlamp low relay, located in IPDM E/R and
 to ignition relay, located in IPDM E/R, from battery direct,
 through 10A fuse (No. 71, located in IPDM E/R)
 to CPU located in IPDM E/R,
 through 15A fuse (No. 78, located in IPDM E/R)
 to CPU located in IPDM E/R,
 through 50A fusible link (letter M, located in fuse, fusible link and relay box)
 to BCM terminal 55,
 through 15A fuse [No. 22, located in fuse block (J/B)]
 to BCM terminal 42,
 through 10A fuse [No. 19, located in fuse block (J/B)]
 to combination meter terminal 8.
With ignition switch in ON or START position, power is supplied
 to ignition relay, located in IPDM E/R, from battery direct
 through 15A fuse [No. 1, located in fuse block (J/B)]
 to BCM terminal 38,
 through 10A fuse [No. 14, located in fuse block (J/B)]
PKIC9683E
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LT-6
< SERVICE INFORMATION >
HEADLAMP - XENON TYPE -
 to combination meter terminal 7.
With ignition switch in ACC or ON position, power is supplied
 through 10A fuse [No. 6, located in fuse block (J/B)]
 to BCM terminal 11.
Ground is supplied
 to BCM terminals 49 and 52
 through grounds M35, M45 and M85,
 to IPDM E/R terminals 38 and 60
 through grounds E21, E50 and E51,
 to combination meter terminals 5, 6 and 15
 through grounds M35, M45 and M85.
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in the 2ND position, the BCM receives input signal requesting the headlamps to illumi-
nate. This input signal is communicated to the IP DM E/R through the CAN communication lines. The CPU
located in the IPDM E/R controls the headlamp lo w relay coil, which when energized, directs power
 through 15A fuse (No. 76, located in IPDM E/R)
 through IPDM E/R terminal 20
 to front combination lamp RH terminal 6,
 through 15A fuse (No. 86, located in IPDM E/R)
 through IPDM E/R terminal 30
 to front combination lamp LH terminal 6.
Ground is supplied
 to front combination lamp RH and LH terminals 7
 through grounds E21, E50 and E51,
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With the lighting switch in the 2ND position and placed in the HIGH or PASS position, the BCM receives input
signal requesting the headlamp high beams to illuminate. Th is input signal is communicated to the IPDM E/R
through the CAN communication lines. The CPU located in the IPDM E/R controls the headlamp high relay
coil and low relay coil, which when energized, directs power
 through 15A fuse (No. 76, located in IPDM E/R)
 through IPDM E/R terminal 20
 to front combination lamp RH terminal 6,
 through 15A fuse (No. 86, located in IPDM E/R)
 through IPDM E/R terminal 30
 to front combination lamp LH terminal 6,
 through 10A fuse (No. 72, located in IPDM E/R)
 through IPDM E/R terminal 27
 to front combination lamp RH terminal 5,
 through 10A fuse (No. 74, located in IPDM E/R)
 through IPDM E/R terminal 28
 to front combination lamp LH terminal 5.
Ground is supplied
 to front combination lamp RH and LH terminals 7
 through grounds E21, E50 and E51,
With power and ground supplied, the high beam headlamps illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
The unified meter and A/C amp. that received the hi gh beam request signal by BCM through the CAN commu-
nication makes a high beam indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-4, "System Description".
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illumi nated for 5 minutes, then the headlamps are turned OFF.
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HEADLAMP - XENON TYPE -LT-17
< SERVICE INFORMATION >
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NOTE:
1. Vehicles without auto light system display this item, but cannot be monitored.
2. Vehicles without daytime light system display this item, but cannot be monitored.
3. This item is displayed, but cannot be monitored.
ACTIVE TEST
Display Item List
NOTE:
1. Vehicles without daytime light lamp system display this item, but cannot be tested.
2. This item is displayed, but cannot be tested.
CONSULT-III Functions (IPDM E/R)INFOID:0000000001328276
CONSULT-III can display each diagnostic item us ing the diagnostic test modes shown following.
CONSULT-III BASIC OPERATION
Refer to GI-34, "Description".
DATA MONITOR
All Signals, Main Signals, Selection From Menu
DOOR SW - DR “ON/OFF” Displays status of driver door as judged from driver door switch signal. (Door is open: ON/
Door is closed: OFF)
DOOR SW - AS “ON/OFF” Displays status of passenger door as judged from passenger door switch signal. (Door is
open: ON/Door is closed: OFF)
DOOR SW - RR “ON/OFF” Displays status of rear door as judged from rear door switch (RH) signal. (Door is open: ON/
Door is closed: OFF)
DOOR SW - RL “ON/OFF” Displays status of rear door as judged from rear door switch (LH) signal. (Door is open: ON/
Door is closed: OFF)
BACK DOOR SW “ON/OFF” Displays status of back door as judged from back door switch signal. (Door is open: ON/
Door is closed: OFF)
TURN SIGNAL R “ON/OFF” Display s status (Turn right: ON/Others: OFF) as judged from lighting switch signal.
TURN SIGNAL L “ON/OFF” Display s status (Turn left: ON/Others: OFF) as judged from lighting switch signal.
ENGINE RUN
NOTE 2“ON/OFF” Displays status (Engine running: ON/Others: OFF) as judged from engine status signal.
PKB SW
NOTE 2“ON/OFF” Displays status (Parking brake switch: ON/Others: OFF) as judged from parking brake
switch signal.
CARGO LAMP SW
NOTE 3 “OFF” —
OPTICAL SENSOR
NOTE 1 “0 - 5 V” Displays “outside brightness (close to 5 V when light/close to 0 V when dark)” judged from
optical sensor signal.
Monitor item Contents
Te s t i t e m D e s c r i p t i o n
TAIL LAMP Allows tail lamp relay to operate by switching ON-OFF.
HEAD LAMP Allows headlamp relay to operate by switching ON-OFF.
FR FOG LAMP Allows front fog lamp relay to operate by switching ON-OFF.
DTRL
NOTE 1Allows daytime light lamp operate by switching ON-OFF
CORNERING LAMP
NOTE 2—
Check Item, Diagnosis Mode Description
SELF-DIAGNOSTIC RESULTS Refer to PG-18, "
CONSULT-III Function (IPDM E/R)".
DATA MONITOR The input/output data of IPDM E/R is displayed in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST IPDM E/R sends a drive signal to electronic components to check their operation.
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LT-18
< SERVICE INFORMATION >
HEADLAMP - XENON TYPE -
NOTE:
Perform monitoring of IPDM E/R data with ignition switch ON. When ignition switch is at ACC, display may not
be correct.
ACTIVE TEST
Headlamp Does Not Change To High Beam (Both Sides)INFOID:0000000001381742
1.CHECK COMBINATION SWITCH INPUT SIGNAL
CONSULT-III DATA MONITOR
1. Select “HI BEAM SW” of BCM data monitor item.
2. With operating the lighting switch, check the monitor status.
CHECK THE COMBINATION SWITCH
Refer to LT-104, "
Combination Switch Inspection".
OK or NG
OK >> GO TO 2.
NG >> Check combination switch (lighting switch). Refer to LT-104, "
Combination Switch Inspection".
2.HEADLAMP ACTIVE TEST
CONSULT-III ACTIVE TEST
1. Select “LAMPS” of IPDM E/R active test item.
2. With operating the test item, check the headlamp high beam operation.
IPDM E/R AUTO ACTIVE TEST
1. Start auto active test. Refer to PG-20, "
Auto Active Test".
2. Check that the headlamp high beam operation.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK IPDM E/R
Item name CONSULT-III
screen display Display
or unit Monitor item selection
Description
ALL
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
Position lights request TAIL & CLR REQ ON/OFF ×× ×Signal status input from BCM
Headlamp low beam request HL LO REQ ON/OFF ×× ×Signal status input from BCM
Headlamp high beam request HL HI REQ ON/OFF ×× ×Signal status input from BCM
Front fog lights request FR FOG REQ ON/OFF ×× ×Signal status input from BCM
Te s t i t e mCONSULT-III
screen display Description
Headlamp relay (HI, LO) output
LAMPSAllows headlamp relay (HI, LO) to operate by switching operation (OFF, HI ON,
LO ON) at your option (Headlamp high beam repeats ON-OFF every 1 second).
Front fog lamp relay output Allows front fog lamp relay to operate by switching operation ON-OFF at your op-
tion.
Tail lamp relay output TAIL LAMP Allows tail lamp relay to operate by switching operation ON-OFF at your option.
When lighting switch is
HIGH BEAM : HI BEAM SW ON
Headlamp high beam should operate.
(Headlamp high beam repeats ON-OFF every 1 second).
Headlamp high beam should operate.
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