INFINITI QX56 2010 Factory Service Manual

SN
SONAR SYSTEM OFF SWITCH CIRCUIT INSPECTIONSN-19
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SONAR SYSTEM OFF SWITCH CIRCUIT INSPECTION
DescriptionINFOID:0000000005146203
The sonar system can be disabled by momentarily pressing the sonar system OFF switch. The sonar system
OFF indicator lamp will be illuminated when the sonar s ystem is OFF. Enabling the sonar system will cause
the sonar system OFF indicator to go out. The indica tor will flash if a malfunction exists in the system.
Diagnosis Procedure (With Rear Sonar System)INFOID:0000000005146204
Regarding Wiring Diagram information, refer to SN-23, "Wiring Diagram".
1.CHECK SONAR SYSTEM OFF SWITCH
Refer to SN-20, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace sonar system OFF switch. Refer to IP-14, "
Removal and Installation".
2.CHECK SONAR SYSTEM OFF SWITCH CIRCUITS
1. Turn ignition switch OFF.
2. Disconnect sonar control unit connector and sonar system OFF switch connector.
3. Check continuity between sonar control unit harness connector (A) and sonar system OFF switch harness connector (B).
4. Check continuity between sonar system OFF switch harness connector and ground.
Are the inspection results normal?
YES >> Inspection End.
NO >> Repair harness or connector.
Diagnosis Procedure (With Front and Rear Sonar System)INFOID:0000000005146205
Regarding Wiring Diagram information, refer to SN-33, "Wiring Diagram".
1.CHECK SONAR SYSTEM OFF SWITCH
Refer to SN-20, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 2.
Connector Terminal Connector Terminal Continuity
B24 (A) 4
M116 (B) 5
Ye s
13 1
AWNIA1577ZZ
ConnectorTerminalContinuity
M116 1, 5
Ground No
2, 6 Yes
AWNIA1578ZZ
Revision: April 20092010 QX56

SN-20
< COMPONENT DIAGNOSIS >
SONAR SYSTEM OFF SWITCH CIRCUIT INSPECTION
NO >> Replace sonar system OFF switch. Refer to IP-14, "Removal and Installation".
2.CHECK SONAR SYSTEM OFF SWITCH CIRCUITS
1. Turn ignition switch OFF.
2. Disconnect sonar control unit connector and sonar system OFF switch connector.
3. Check continuity between sonar control unit harness connector (A) and sonar system OFF switch harness connector (B).
4. Check continuity between sonar system OFF switch harness connector and ground.
Are the inspection results normal?
YES >> Inspection End.
NO >> Repair harness or connector.
Component InspectionINFOID:0000000005146206
SONAR SYSTEM OFF SWITCH
1. Disconnect the sonar system OFF switch connector.
2. Check continuity between the following switch terminals.
SONAR SYSTEM OFF INDICATOR
1. Disconnect the sonar system OFF switch connector.
2. Apply battery voltage to switch terminal 5.
3. Check the sonar system OFF indicator operation when switch terminal 6 is connected to battery ground.
Connector Terminal Connector Terminal Continuity
B56 (A) 5
M116 (B) 5
Ye s
11 1
ALNIA1087ZZ
ConnectorTerminalContinuity
M116 1, 5
Ground No
2, 6 Yes
ALNIA1088ZZ
Sonar system OFF switch Terminals Continuity
Depressed 1 - 2Ye s
Released No
AWNIA0181ZZ
Terminals Condition Operation
Sonar system
OFF switch 5
Battery voltage
Indicator ON
6G ro u nd
AWNIA0182ZZ
Revision: April 20092010 QX56

SN
SONAR CONTROL UNIT FOR REAR SONAR SYSTEMSN-21
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ECU DIAGNOSIS
SONAR CONTROL UNIT FO R REAR SONAR SYSTEM
Reference ValueINFOID:0000000005146207
SONAR CONTROL UNIT TERMINAL LAYOUT
TERMINALS AND REFERENCE VA LUES FOR SONAR CONTROL UNIT
WKIA5222E
Te r m i n a l
(wire color) Item Condition
Reference value (V)
(Approx.)
Ignition
switch Operation
3 (R) Sonar buzzer return ON —0 - 12 (variable)
4 (BR/Y) Sonar system OFF
indicator output ON
Sonar system OFF
switch ON
0
OFF Battery voltage
5 (G/W) Reverse signal ONTransmission gear se-
lector lever
R position
Battery voltage
Transmission gear se-
lector lever Not R position
0
6 (B) Sonar control unit
ground ——
0
7 (L) Sonar buzzer drive
signal
ON
— Battery voltage
8 (G/R) Sonar control unit
power ON
— Battery voltage
9 (GR) Rear sonar sensor
signal - RH outer
ON• Sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• No obstacles Battery voltage
10 (P) Rear sonar sensor
signal - LH outer
ON• Sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• No obstacles Battery voltage
11 ( O ) Rear sonar sensor
signal - LH inner
ON• Sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• Distance obstacles Battery voltage
12 (LG) Rear sonar sensor
signal - RH inner
ON• Sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• Distance obstacles Battery voltage
13 (LG) Sonar system OFF
switch signal
ONSonar system OFF
switch ON
0
OFF Battery voltage
Revision: April 20092010 QX56

SN-22
< ECU DIAGNOSIS >
SONAR CONTROL UNIT FOR REAR SONAR SYSTEM
15 (Y)Rear sonar sensor
ground
ON
— 0
16 (LG/B) Rear sonar sensor
power ON Ignition switch ON
Battery voltage
Te r m i n a l
(wire color) Item Condition
Reference value (V)
(Approx.)
Ignition
switch Operation
Revision: April 20092010 QX56

SN
SONAR CONTROL UNIT FOR REAR SONAR SYSTEMSN-23
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Wiring DiagramINFOID:0000000005146208
ABNWA0369GB
Revision: April 20092010 QX56

SN-24
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SONAR CONTROL UNIT FOR REAR SONAR SYSTEM
ABNIA0077GB
Revision: April 20092010 QX56

SN
SONAR CONTROL UNIT FOR REAR SONAR SYSTEMSN-25
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ABNIA1317GB
Revision: April 20092010 QX56

SN-26
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SONAR CONTROL UNIT FOR REAR SONAR SYSTEM
ABNIA1434GB
Revision: April 20092010 QX56

SN
SONAR CONTROL UNIT FOR REAR SONAR SYSTEMSN-27
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ABNIA0080GB
Revision: April 20092010 QX56

SN-28
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SONAR CONTROL UNIT FOR REAR SONAR SYSTEM
AANIA0249GB
Revision: April 20092010 QX56