INFINITI QX56 2006 Factory Service Manual

LT-114
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: November 20092006 QX56
Wiring Diagram — TAIL/L —EKS00BAO
WKWA3662E

PARKING, LICENSE PLATE AND TAIL LAMPSLT-115
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Revision: November 2009 2006 QX56
WKWA2494E

LT-116
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: November 20092006 QX56
WKWA3663E

PARKING, LICENSE PLATE AND TAIL LAMPSLT-117
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Revision: November 2009 2006 QX56
Terminals and Reference Values for BCMEKS00BAP
Te r m i n a l
No. Wire
color Signal name Measuring condition
Reference value
(Approx.)
Ignition
switch Operation or condition
2 SB Combination switch input 5 ONLighting, turn, wiper OFF
Wiper dial position 4
3 G/Y Combination switch input 4 ONLighting, turn, wiper OFF
Wiper dial position 4
4 Y Combination switch input 3 ONLighting, turn, wiper OFF
Wiper dial position 4
5 G/B Combination switch input 2 ONLighting, turn, wiper OFF
Wiper dial position 4
6 V Combination switch input 1
32 R/G Combination switch output 5 ON Lighting, turn, wiper OFF
Wiper dial position 4
33 R/Y Combination switch output 4 ON Lighting, turn, wiper OFF
Wiper dial position 4
34 L Combination switch output 3 ON Lighting, turn, wiper OFF
Wiper dial position 4
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
SKIA5291E

LT-118
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: November 20092006 QX56
Terminals and Reference Values for IPDM E/REKS00BAQ
How to Proceed With Trouble DiagnosisEKS00BAR
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 111 , "
System Description" .
3. Carry out the Preliminary Check. Refer to LT- 11 8 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Do the parking, license and tail lamps operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. Inspection End.
Preliminary CheckEKS00BAS
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES OR FUSIBLE LINK
Check for blown fuses or fusible link.
Refer to LT- 11 4 , "
Wiring Diagram — TAIL/L —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse or fusible link. Refer to PG-4, "
POWER SUPPLY ROUTING CIRCUIT" .
35 O/B Combination switch output 2
ONLighting, turn, wiper OFF
Wiper dial position 4
36 R/W Combination switch output 1
38 W/L Ignition switch (ON) ON— Battery voltage
39 L CAN-H ———
40 P CAN-L ———
67 B Ground ON— 0V
70 W/B Battery power supply (fusible link) OFF —Battery voltage
Terminal
No. Wire
color Signal name Measuring condition
Reference value
(Approx.)
Ignition
switch Operation or condition
SKIA5292E
Te r m i n a l
No. Wire
color Signal name Measuring condition
Reference value
(Approx.)
Ignition
switch Operation or condition
38 B Ground ON— 0V
39 L CAN-H —— —
40 P CAN-L —— —
57 R/L Parking, license, and tail
lamp ON
Lighting switch
1ST position OFF
0V
ON Battery voltage
59 B Ground ON— 0V
Unit Power sourceFuse and fusible link No.
BCM Battery
f
Ignition switch ON or START position 59
IPDM E/R Battery
53
Battery (Tail lamps ON) 37

PARKING, LICENSE PLATE AND TAIL LAMPSLT-119
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Revision: November 2009 2006 QX56
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connectors.
2. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open between BCM and fuse or fus- ible link.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> Inspection End.
NG >> Check ground circuit harness.
CONSULT-II FunctionsEKS00BAT
Refer to LT- 1 9 , "CONSULT-II Function (IPDM E/R)" and LT- 1 6 , "CONSULT-II Function (BCM)" in HEAD-
LAMP (FOR USA).
BCM Ignition switch position
(+) (– )OFFACCON
Connector Terminal
M18 38 Ground0V 0V
Battery
voltage
M20 70 Battery
voltage Battery
voltage Battery
voltage
WKIA1436E
BCM Continuity
Connector Terminal
M20 67Ground Yes
LIIA0915E

LT-120
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: November 20092006 QX56
Parking, License Plate and/or Tail Lamps Do Not IlluminateEKS00BAU
1. CHECK COMBINATION SWITCH INPUT SIGNAL
With CONSULT-II
Select "BCM" on CONSULT-II. With "HEAD LAMP" data monitor,
make sure "LIGHT SW 1ST" turns ON-OFF linked with operation of
lighting switch.
Without CONSULT-II
Refer to LT- 1 0 3 , "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Check lighting switch. Refer to LT- 1 0 3 , "
Combination
Switch Inspection" .
2. ACTIVE TEST
With CONSULT-II
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 "TAIL" on "ACTIVE TEST" screen.
4. Make sure parking, license plate and tail lamp operation.
Without CONSULT-II
1. Start auto active test. Refer to PG-24, "
Auto Active Test" .
2. Make sure parking, license plate and tail lamp operation.
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 "TAIL&CLR REQ" turns ON when lighting switch is in 1ST position.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-30, "Removal and
Installation of IPDM E/R" .
NG >> Replace BCM. Refer to BCS-20, "
BCM" .
When lighting switch is in
1ST position
: LIGHT SW 1ST ON
SKIA5956E
Parking, license plate and tail lamp should operate
Parking, license plate and tail lamp should operate
WKIA1438E
When lighting switch is in
1ST position: TAIL&CLR REQ ON
SKIA5958E

PARKING, LICENSE PLATE AND TAIL LAMPSLT-121
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4. CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front combination lamp, license plate lamp and rear combination lamp 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 "TAIL LAMP" on "SELECT TEST ITEM" screen.
6. Touch "ON" on "ACTIVE TEST" screen.
7. When tail lamp is operating, check voltage between front combination lamp, license plate lamp, rear com- bination lamp harness connector and ground.
Without CONSULT-II
1. Start auto active test. Refer to PG-24, "
Auto Active Test" .
2. When tail lamp is operating, check voltage between front combination lamp, license plate lamp, rear com- bination lamp connector and ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
Front combination lamp (+) (– ) Voltage
Connector Terminal
RH E107 3Ground Battery voltage
LH E11
WKIA1900E
License plate lamps (+) (– ) Voltage
Connector Terminal
D703 1Ground Battery voltage
WKIA4613E
Rear combination lamp (+)
(– ) Voltage
Connector Terminal
RH B130 3Ground Battery voltage
LH B70
WKIA1901E

LT-122
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: November 20092006 QX56
5. CHECK PARKING, LICENSE PLATE AND TAIL LAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and front combination lamp harness connector.
4. Check continuity between IPDM E/R connector E124 (A) and license plate lamps connector D703 (B).
5. Check continuity between IPDM E/R harness connector and rear combination lamp harness connector.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-30, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector.
IPDM E/R Front combination lamp
Continuity
Connector Terminal Connector Terminal
E124 57 RH E107
3Yes
LH E11
WKIA1902E
IPDM E/R License plate lamps
Continuity
Connector Terminal Connector Terminal
A: E124 57 B: D7031Yes
WKIA4614E
IPDM E/R Rear combination lamp
Continuity
Connector Terminal Connector Terminal
E124 57 RH B130
3 Yes
LH B70
WKIA1903E

PARKING, LICENSE PLATE AND TAIL LAMPSLT-123
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Revision: November 2009 2006 QX56
6. CHECK GROUND
1. Check continuity between front combination lamp harness con- nector and ground.
2. Check continuity between license lamps plate connector and ground.
3. Check continuity between rear combination lamp harness con- nector and ground.
OK or NG
OK >> Check bulbs.
NG >> Repair harness or connector.
Parking, License Plate and Tail Lamps Do Not Turn OFF (After Approx. 10 Min-
utes)
EKS00BAV
1. CHECK IPDM E/R
1. Turn ignition switch ON. Turn the combination switch (lighting switch) to the OFF position. Turn ignition switch OFF.
2. Verify that the parking, license plate, and tail lamps turn on and off after approximately 10 minutes.
OK or NG
OK >> Ignition relay malfunction. Refer to PG-19, "Function of Detecting Ignition Relay Malfunction" .
NG >> Inspection End.
Front combination lamp Continuity
Connector Terminal
RH E107 4Ground Yes
LH E11
WKIA1904E
License plate lamps Continuity
Connector Terminal
D703 2Ground Yes
WKIA4615E
Rear combination lamp
Continuity
Connector Terminal
RH B130 1Ground Yes
LH B70
WKIA1905E