2006 INFINITI QX56 Factory Service Manual

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Page 1177 of 3383

INFINITI QX56 2006 Factory Service Manual DI-56
WARNING CHIME
Revision: November 20092006 QX56
3. CHECK BCM INPUT SIGNAL
With CONSULT-II
With "DATA MONITOR" of "BUZZER", confirm "KEY ON SW"
changes when the key is inserted/removed from the ig

Page 1178 of 3383

INFINITI QX56 2006 Factory Service Manual WARNING CHIMEDI-57
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Revision: November 2009 2006 QX56
5. CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M18 terminal

Page 1179 of 3383

INFINITI QX56 2006 Factory Service Manual DI-58
WARNING CHIME
Revision: November 20092006 QX56
Seat Belt Warning Chime Does Not OperateEKS00BD1
1. CHECK WARNING CHIME OPERATION
1. With key removed from the ignition and the front door LH open,

Page 1180 of 3383

INFINITI QX56 2006 Factory Service Manual WARNING CHIMEDI-59
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Revision: November 2009 2006 QX56
5. CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
1. Disconnect combination meter connector.
2. Check continuity between combinati

Page 1181 of 3383

INFINITI QX56 2006 Factory Service Manual DI-60
REAR SONAR SYSTEM
Revision: November 20092006 QX56
REAR SONAR SYSTEMPFP:28532
Component Parts and Harness Connector LocationEKS00BD2
1. Fuse block (J/B)2. IPDM E/R E1193. Sonar buzzer M117
4. Re

Page 1182 of 3383

INFINITI QX56 2006 Factory Service Manual REAR SONAR SYSTEMDI-61
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System DescriptionEKS00BD3
FUNCTION
With the ignition switch in the ON or START position, power is supplied
through

REAR SONAR SYSTEMDI-61
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Revision: November 2009 2006 QX56
System DescriptionEKS00BD3
FUNCTION
With the ignition switch in the ON or START position, power is supplied
through 10A fuse [No. 12 , located in the fuse block (J/B)]
to sonar control unit terminal 8, and
through 10A fuse (No. 51, located in the IPDM E/R)
to back-up lamp relay terminals 1 and 3.
Ground is supplied
to sonar control unit terminal 6
through body grounds B7 and B19.
With the ignition switch in the ON or START position, and the transmission gear selector lever in the R posi-
tion, power is supplied
to sonar control unit terminal 5
from back-up lamp relay terminal 5.
With power and ground supplied, transmission gear selector lever in R position, and the rear sonar system
OFF switch ON, the rear sonar system will detect obstacles within 1.8 m (5.9 ft.) of the rear sonar sensors.
The vehicle operator is notified of obstacles by varied rate of tone from the sonar buzzer depending on dis-
tance of obstacle being sensed.
REAR SONAR SYSTEM OFF SWITCH
With power and ground supplied to the sonar control unit, transmission gear selector lever in R position, the
sonar system can be disabled and the sonar buzzer silenced by momentarily pressing the rear sonar system
OFF switch. The rear sonar system OFF indicator lamp will be illuminated in the rear sonar system OFF
switch.
To disable the rear sonar system, ground is supplied
to sonar control unit terminal 13
through rear sonar system OFF switch terminal 1
through rear sonar system OFF switch terminal 2
from body grounds M57, M61, and M79.
To light the rear sonar system OFF indicator, power is supplied
from sonar control unit terminal 4
to the rear sonar system OFF switch terminal 5.
Ground is supplied
to the rear sonar system OFF switch terminal 6
from body grounds M57, M61, and M79.
The rear sonar system and buzzer will be disabled and the rear sonar system OFF indicator will be illuminated
until the ignition switch is turned OFF. When the ignition switch is turned ON, the rear sonar system will be
enabled. Depressing the rear sonar system OFF switch momentarily will enable the rear sonar system also.
Enabling the rear sonar system will cause the rear sonar system OFF indicator to go out.
SONAR BUZZER
With power supplied to the sonar control unit and the transmission gear selector lever in R position, a station-
ary object that is at least 7.0 cm (2.8 in.) wide and 1.0 m (39.0 in.) tall and that is closer than 1.8 meters (5.9 ft.)
will be detected by the rear sonar sensors, causing the sonar buzzer to sound a tone. As the vehicle moves
closer to the object, the rate of the tone will increase. When the object is less than 25.0 cm (10 in.) from the
rear bumper, the tone will sound continuously.
Power is supplied
to sonar buzzer terminal 1
from sonar control unit terminal 7.
Ground is supplied
to sonar buzzer terminal 2
from sonar control unit terminal 3.

Page 1183 of 3383

INFINITI QX56 2006 Factory Service Manual DI-62
REAR SONAR SYSTEM
Revision: November 20092006 QX56
REAR SONAR SENSOR
With power and ground supplied to the rear sonar sensors, the sonar sensors transmit a 38.4 kHz ultrasonic
signal. This signa

Page 1184 of 3383

INFINITI QX56 2006 Factory Service Manual REAR SONAR SYSTEMDI-63
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Revision: November 2009 2006 QX56
Wiring Diagram — SONAR —EKS00BD4
WKWA4087E

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