2007 INFINITI QX56 Factory Service Manual

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Page 2217 of 3061

INFINITI QX56 2007 Factory Service Manual LT-10
< SERVICE INFORMATION >
HEADLAMP (FOR USA)
WKWA2482E

Page 2218 of 3061

INFINITI QX56 2007 Factory Service Manual HEADLAMP (FOR USA)
LT-11
< SERVICE INFORMATION >
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Terminal and Reference Value for BCMINFOID:0000000003533337
Refer to BCS-11, "Terminal and Reference Value for BCM".
Te

Page 2219 of 3061

INFINITI QX56 2007 Factory Service Manual LT-12
< SERVICE INFORMATION >
HEADLAMP (FOR USA)
How to Proceed with Trouble Diagnosis
INFOID:0000000003533339
1. Confirm the symptom or customer complaint.
2. Understand operation description and fun

LT-12
< SERVICE INFORMATION >
HEADLAMP (FOR USA)
How to Proceed with Trouble Diagnosis
INFOID:0000000003533339
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 5 , "
System Description" .
3. Perform the Preliminary Check.
4. Check symptom and repair or replace the component.
5. Does the headlamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. Inspection End.
Preliminary CheckINFOID:0000000003533340
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR BCM
Refer to BCS-15, "BCM Power Supply and Ground Circuit Inspection" .
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR IPDM E/R
Refer to PG-26, "IPDM E/R Power/Ground Circuit Inspection" .
CONSULT-II Function (BCM)INFOID:0000000003533341
Refer to BCS-16, "CONSULT-II Function (BCM)" .
CONSULT-II START PROCEDURE
Refer to GI-36, "CONSULT-II Start Procedure" .
WORK SUPPORT
Display Item List
DATA MONITOR
Display Item List
Item Description CONSULT-II Factory setting
BATTERY SAVER SETExterior lamp battery saver control mode can be changed
in this mode. Selects exterior lamp battery saver control
mode between ON/OFF.ON×
OFF —
Monitor item Contents
IGN ON SW "ON/OFF" Displays "IGN position (ON)/OFF, ACC position (OFF)" judged from the ignition switch signal.
ACC ON SW "ON/OFF" Displays "ACC (ON)/OFF, Ignition OFF (OFF)" status judged from ignition switch signal.
HI BEAM SW "ON/OFF"Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from lighting
switch signal.
HEAD LAMP SW 1 "ON/OFF"Displays status (headlamp switch 1: ON/Others: OFF) of headlamp switch 2 judged from lighting
switch signal.
HEAD LAMP SW 2 "ON/OFF"Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged from lighting
switch signal.
LIGHT SW 1ST "ON/OFF"Displays status (lighting switch 1st position: ON/Others: OFF) of lighting switch judged from
lighting switch signal.
AUTO LIGHT SW "ON/OFF"Displays status of the lighting switch as judged from the lighting switch signal. (AUTO position:
ON/Other than AUTO position: OFF)
PASSING SW "ON/OFF"Displays status (flash-to-pass switch: ON/Others: OFF) of flash-to-pass switch judged from light-
ing switch signal.
FR FOG SW "ON/OFF"Displays status (front fog lamp switch: ON/Others: OFF) of front fog lamp switch judged from
lighting switch signal.
DOOR SW-DR "ON/OFF"Displays status of the front door LH as judged from the front door LH switch signal. (Door is
open: ON/Door is closed: OFF)
DOOR SW-AS "ON/OFF"Displays status of the front door RH as judged from the front door RH switch signal. (Door is
open: ON/Door is closed: OFF)

Page 2220 of 3061

INFINITI QX56 2007 Factory Service Manual HEADLAMP (FOR USA)
LT-13
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ACTIVE TEST
Display Item List
SELF-DIAGNOSTIC RESULTS
Display Item List
CONSULT-II Function (IPDM E/R)INFOID:0000000003

HEADLAMP (FOR USA)
LT-13
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ACTIVE TEST
Display Item List
SELF-DIAGNOSTIC RESULTS
Display Item List
CONSULT-II Function (IPDM E/R)INFOID:0000000003533342
Refer to PG-18, "CONSULT-II Function (IPDM E/R)" .
CONSULT-II START PROCEDURE
Refer to GI-36, "CONSULT-II Start Procedure".
DATA MONITOR
All Items, Main Items, Select Item Menu
NOTE:
Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the dis-
play may not be correct.
DOOR SW-RR "ON/OFF"Displays status of the rear door as judged from the rear door switch (RH) signal. (Door is open:
ON/Door is closed: OFF)
DOOR SW-RL "ON/OFF"Displays status of the rear door as judged from the rear door switch (LH) signal. (Door is open:
ON/Door is closed: OFF)
BACK DOOR SW "ON/OFF"Displays status of the back door as judged from the back door switch signal. (Door is open: ON/
Door is closed: OFF)
TURN SIGNAL R "ON/OFF" Displays status (Turn right: ON/Others: OFF) as judged from lighting switch signal.
TURN SIGNAL L "ON/OFF" Displays status (Turn left: ON/Others: OFF) as judged from lighting switch signal.
CARGO LAMP SW "ON/OFF" Displays status of cargo lamp switch.
OPTICAL SENSOR [0 - 5V] Displays "ambient light (close to 5V when dark/close to 0V when light)" judged from optical sen-
sor 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 (HI, LO) to operate by switching ON-OFF.
FR FOG LAMP Allows fog lamp relay to operate by switching ON-OFF.
CARGO LAMP Allows cargo lamp to operate by switching ON-OFF.
CORNERING LAMP Not used.
Monitored item CONSULT-ll display Description
CAN communication CAN communication [U1000] Malfunction is detected in CAN communication.
CAN communication system CAN communication system 1 to 6 [U1000] Malfunction is detected in CAN system.
Item nameCONSULT-II
screen displayDisplay or
unitMonitor item selection
Description
ALL
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
Parking, license plate
and tail lamps requestTAIL&CLR REQ ON/OFF×× ×Signal status input from BCM
Headlamp low beam re-
questHL LO REQ ON/OFF×× ×Signal status input from BCM
Headlamp high beam re-
questHL HI REQ ON/OFF×× ×Signal status input from BCM
Daytime lights request DTRL REQ ON/OFF×–×Signal status input from BCM
Front fog lamps request FR FOG REQ ON/OFF×× ×Signal status input from BCM

Page 2221 of 3061

INFINITI QX56 2007 Factory Service Manual LT-14
< SERVICE INFORMATION >
HEADLAMP (FOR USA)
ACTIVE TEST
Headlamp HI Does Not Illuminate (Both Sides)INFOID:0000000003533343
1.CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. Wi

LT-14
< SERVICE INFORMATION >
HEADLAMP (FOR USA)
ACTIVE TEST
Headlamp HI Does Not Illuminate (Both Sides)INFOID:0000000003533343
1.CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. With "HEAD LAMP" data monitor,
make sure "HI BEAM SW" turns ON-OFF linked with operation of
lighting switch.
OK or NG
OK >> GO TO 2.
NG >> Check lighting switch. Refer to LT-73, "
Combination
Switch Inspection" .
2.HEADLAMP ACTIVE TEST
1. Select "IPDM E/R" on CONSULT-II, and select "ACTIVE TEST"
on "SELECT DIAG MODE" screen.
2. Select "EXTERNAL LAMPS" on "SELECT TEST ITEM" screen.
3. Touch "HI" on "ACTIVE TEST" screen.
4. Make sure headlamp high beam operates.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK IPDM E/R
1. Select "IPDM E/R" on CONSULT-II, and select "DATA MONI-
TOR" on "SELECT DIAG MODE" screen.
2. Make sure "HL LO REQ" and "HL HI REQ" turns ON when light-
ing switch is in HIGH position.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and
Installation of IPDM E/R" .
NG >> Replace BCM. Refer to BCS-24, "
BCM" .
4.CHECK HEADLAMP INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connectors.
3. Turn ignition switch ON.
4. Select "IPDM E/R" on CONSULT-II, and select "ACTIVE TEST" on "SELECT DIAG MODE" screen.
5. Select "EXTERNAL LAMPS" on "SELECT TEST ITEM" screen.
Test item CONSULT-II screen display Description
Headlamp relay (HI, LO) out-
put
EXTERNAL LAMPSAllows headlamp relay (HI, LO) to operate by switching operation (OFF,
HI, LO) at your option (Headlamp high beam repeats ON-OFF every 1
second).
Front fog lamp relay (FOG)
outputAllows fog lamp relay (FOG) to operate by switching operation ON-OFF
at your option.
Tail lamp relay outputAllows tail lamp relay to operate by switching operation ON-OFF at your
option.
When lighting switch is in
HIGH position: HI BEAM SW ON
SKIA4193E
Headlamp high beam should operate.
WKIA1438E
When lighting switch is in
HIGH position: HL LO REQ ON
: HL HI REQ ON
SKIA5775E

Page 2222 of 3061

INFINITI QX56 2007 Factory Service Manual HEADLAMP (FOR USA)
LT-15
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6. Touch "HI" on "ACTIVE TEST" screen.
7. When headlamp high beam is operating, check voltage between
front combination

Page 2223 of 3061

INFINITI QX56 2007 Factory Service Manual LT-16
< SERVICE INFORMATION >
HEADLAMP (FOR USA)
1. Disconnect inoperative front combination lamp connector.
2. Turn the high beam headlamps ON.
3. Check voltage between inoperative front combination

Page 2224 of 3061

INFINITI QX56 2007 Factory Service Manual HEADLAMP (FOR USA)
LT-17
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Headlamp LO Does Not Illuminate (Both Sides)INFOID:0000000003533346
1.CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BC

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