Infiniti QX56 (JA60). Manual — part 873
SN
SONAR BUZZER CIRCUIT INSPECTION
SN-17
< COMPONENT DIAGNOSIS >
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SONAR BUZZER CIRCUIT INSPECTION
Description
INFOID:0000000005146199
When the A/T selector lever is not it park or neutral, a stationary object will be detected by the sonar sensors
causing the front or rear 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 very close to the vehicle, the tone will sound continuously.
Diagnosis Procedure (With Rear Sonar System)
INFOID:0000000005146200
Regarding Wiring Diagram information, refer to
1.
CHECK SONAR BUZZER
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace sonar buzzer. Refer to
SN-51, "Removal and Installation"
.
2.
CHECK SONAR BUZZER CIRCUITS
1. Turn ignition switch OFF.
2. Disconnect sonar control unit connector and sonar buzzer connector.
3. Check continuity between sonar control unit harness connector
(A) and sonar buzzer harness connector (B).
4. Check continuity between sonar control unit 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:0000000005146201
Regarding Wiring Diagram information, refer to
1.
CHECK BUZZERS
Is the inspection result normal?
YES
>> GO TO 2.
Connector
Terminal
Connector
Terminal
Continuity
B24 (A)
3
M47 (B)
2
Yes
7
1
AWNIA1576ZZ
Connector
Terminal
Continuity
B24
3, 7
Ground
No
AWNIA1504ZZ
SN-18
< COMPONENT DIAGNOSIS >
SONAR BUZZER CIRCUIT INSPECTION
NO
>> Replace buzzer. Refer to
SN-51, "Removal and Installation"
2.
CHECK BUZZER CIRCUITS
1. Turn ignition switch OFF.
2. Disconnect sonar control unit connectors and sonar buzzer connectors.
3. Check continuity between sonar control unit harness connectors
(A, B) and sonar buzzer harness connectors (C).
4. Check continuity between sonar control unit harness connectors
(A, B) and ground.
Are the inspection results normal?
YES
>> Inspection End.
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000005146202
SONAR BUZZER
1. Disconnect the sonar buzzer connector.
2. Check continuity between sonar buzzer terminals 1 and 2.
Connector
Terminal
Connector
Terminal
Continuity
B56 (A)
2
B166, M118 (C)
1
Yes
6
B166 (C)
2
B57 (B)
23
M118 (C)
AWNIA1545ZZ
Connector
Terminal
Continuity
B56 (A)
2, 6
Ground
No
B57 (B)
23
AWNIA1546ZZ
1 - 2
: Continuity should exist
WKIA4417E
SN
SONAR SYSTEM OFF SWITCH CIRCUIT INSPECTION
SN-19
< COMPONENT DIAGNOSIS >
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SONAR SYSTEM OFF SWITCH CIRCUIT INSPECTION
Description
INFOID: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 system is OFF. Enabling the sonar system will cause
the sonar system OFF indicator to go out. The indicator will flash if a malfunction exists in the system.
Diagnosis Procedure (With Rear Sonar System)
INFOID:0000000005146204
Regarding Wiring Diagram information, refer to
1.
CHECK SONAR SYSTEM OFF SWITCH
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
1.
CHECK SONAR SYSTEM OFF SWITCH
Is the inspection result normal?
YES
>> GO TO 2.
Connector
Terminal
Connector
Terminal
Continuity
B24 (A)
4
M116 (B)
5
Yes
13
1
AWNIA1577ZZ
Connector
Terminal
Continuity
M116
1, 5
Ground
No
2, 6
Yes
AWNIA1578ZZ
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 Inspection
INFOID: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
Yes
11
1
ALNIA1087ZZ
Connector
Terminal
Continuity
M116
1, 5
Ground
No
2, 6
Yes
ALNIA1088ZZ
Sonar system OFF switch
Terminals
Continuity
Depressed
1 - 2
Yes
Released
No
AWNIA0181ZZ
Terminals
Condition
Operation
Sonar system
OFF switch
5
Battery voltage
Indicator ON
6
Ground
AWNIA0182ZZ
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