2004 INFINITI QX56 Factory Service Manual

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Page 2553 of 3371

INFINITI QX56 2004 Factory Service Manual LT-122
REAR COMBINATION LAMP
Revision: August 20072004 QX56
REAR COMBINATION LAMPPFP:26554
Bulb Replacement (Turn Signal)EKS007CR
NOTE:
The tail/stop lamp bulbs are LEDs and are not serviceable separa

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INFINITI QX56 2004 Factory Service Manual TRAILER TOW
LT-123
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Revision: August 20072004 QX56
TRAILER TOWPFP:93020
Component Parts and Harness Connector LocationEKS007CT
System DescriptionEKS007CU
Power is supplied at

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INFINITI QX56 2004 Factory Service Manual LT-124
TRAILER TOW
Revision: August 20072004 QX56
through 10A fuse (No. 59, located in the fuse and relay box)
to BCM terminal 38, and
through 10A fuse (No. 51, located in the IPDM E/R)
to trailer

LT-124
TRAILER TOW
Revision: August 20072004 QX56
through 10A fuse (No. 59, located in the fuse and relay box)
to BCM terminal 38, and
through 10A fuse (No. 51, located in the IPDM E/R)
to trailer tow relay 2 terminal 1.
Ground is supplied
to BCM terminal 67 and
to electric brake (pre-wiring) terminal 1
through grounds M57, M61 and M79, and
to IPDM E/R terminals 38 and 59
to trailer tow relay 1 terminal 2
to trailer tow relay 2 terminal 2 and
to trailer connector terminal 2
through grounds E9, E15 and E24.
TRAILER TAIL LAMP OPERATION
The trailer tail lamps are controlled by the trailer tow relay 1.
With the lighting switch in the parking and tail lamp ON (1ST) position, AUTO position (and the auto light sys-
tem is activated) or headlamp ON (2ND) position, power is supplied
through the tail lamp relay, located in the IPDM E/R
through 10A fuse (No. 36, located in the IPDM E/R)
through IPDM E/R terminal 49
to trailer tow relay 1 terminal 1.
When energized, trailer tow relay 1 supplies tail lamp power to trailer connector terminal 6.
TRAILER BRAKE, TURN SIGNAL AND HAZARD LAMP OPERATION
The trailer brake, turn signal and hazard lamps are all controlled by the BCM. When the brake pedal is
depressed, the BCM receives stop lamp switch signal through CAN communication. If the brake pedal is
depressed or either turn signal or the hazard lamps are turned on, the BCM supplies voltage to the trailer
lamps to make them flash or turn on.
Left trailer brake, turn signal and hazard lamp output is supplied
through BCM terminal 52
to trailer connector terminal 1.
Right trailer brake, turn signal and hazard lamp output is supplied
through BCM terminal 51
to trailer connector terminal 4.
TRAILER BRAKE OPERATION
The trailer brake is controlled by the electric brake. The electric brake receives stop lamp switch signal at elec-
tric brake (pre-wiring) terminal 2 when the brake pedal is depressed.
When the brake pedal is depressed, power is supplied by the electric brake
through electric brake (pre-wiring) terminal 3
to trailer connector terminal 3.
TRAILER POWER SUPPLY OPERATION
The trailer power supply is controlled by the trailer tow relay 2.
When the ignition switch is in the ON or START position, power is supplied
through 10A fuse (No. 51, located in the IPDM E/R)
to IPDM E/R terminal 16
to trailer tow relay 2 terminal 1.
When energized, the trailer tow relay 2 supplies power
through trailer tow relay 2 terminals 5 and 7
to trailer connector terminal 5.

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INFINITI QX56 2004 Factory Service Manual TRAILER TOW
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SchematicEKS007CV
WKWA3120E

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INFINITI QX56 2004 Factory Service Manual LT-126
TRAILER TOW
Revision: August 20072004 QX56
Wiring Diagram — T/TOW —EKS007CW
WKWA3121E

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INFINITI QX56 2004 Factory Service Manual TRAILER TOW
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Revision: August 20072004 QX56
WKWA1210E

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INFINITI QX56 2004 Factory Service Manual LT-128
TRAILER TOW
Revision: August 20072004 QX56
WKWA1405E

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INFINITI QX56 2004 Factory Service Manual INTERIOR ROOM LAMP
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Revision: August 20072004 QX56
INTERIOR ROOM LAMPPFP:26410
Component Parts and Harness Connector LocationEKS007CX
WKIA3391E

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