Infiniti QX56 (Z62). Manual — part 77
AV-162
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between front display unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect front display unit connector.
3.
Check continuity between front display unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
HEADREST DISPLAY UNIT
HEADREST DISPLAY UNIT : Diagnosis Procedure
INFOID:0000000006216321
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between headrest display unit harness connector and ground.
• *1: Headrest display unit LH
• *2: Headrest display unit RH
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between headrest display unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect headrest display unit connector.
3.
Check continuity between headrest display unit harness connector and ground.
• *1: Headrest display unit LH
• *2: Headrest display unit RH
Signal name
Connector
Terminal
Ignition switch position
Value (Approx.)
Battery power supply
M215
11
OFF
Battery voltage
ACC power supply
M215
23
ACC
Battery voltage
Signal name
Connector
Terminal
Ignition switch position
Continuity
Ground
M215
12
OFF
Existed
Power source
Fuse No.
Battery
35
Signal name
Connector
Terminal
Ignition switch position
Value (Approx.)
Battery power supply
B554
*1
B574
*2
2
OFF
Battery voltage
4
Signal name
Connector
Terminal
Ignition switch position
Continuity
Ground
B554
*1
B574
*2
1
OFF
Existed
3
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-163
< DTC/CIRCUIT DIAGNOSIS >
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Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
VIDEO DISTRIBUTOR
VIDEO DISTRIBUTOR : Diagnosis Procedure
INFOID:0000000006216322
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between video distributor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between video distributor and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect video distributor connector.
3.
Check continuity between video distributor harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
BOSE AMP.
BOSE AMP. : Diagnosis Procedure
INFOID:0000000006216323
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Power source
Fuse No.
Battery
35
Ignition switch ACC or ON
19
Signal name
Connector
Terminal
Ignition switch position
Value (Approx.)
Battery power supply
M217
2
OFF
Battery voltage
ACC power supply
M217
4
ACC
Battery voltage
Signal name
Connector
Terminal
Ignition switch position
Continuity
Ground
M217
1
OFF
Existed
Ground
M217
3
OFF
Existed
Power source
Fuse No.
Battery
5
Battery
8
AV-164
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Check voltage between BOSE amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between BOSE amp. and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BOSE amp. connector.
3.
Check continuity between BOSE amp. harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
AROUND VIEW MONITOR CONTROL UNIT
AROUND VIEW MONITOR CONTROL UNIT : Diagnosis Procedure
INFOID:0000000006216324
1.
CHECK FUSE
Check for blown fuses.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUITS
Check voltage between around view monitor control unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between around view monitor control unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect around view monitor control unit connector.
3.
Check continuity between around view monitor control unit harness connector and ground.
Is inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Signal name
Connector
Terminal
Ignition switch position
Value (Approx.)
Battery power supply
B229
10
OFF
Battery voltage
Battery power supply
B229
11
OFF
Battery voltage
Signal name
Connector
Terminal
Ignition switch position
Continuity
Ground
B229
12
OFF
Existed
Power source
Fuse No.
Battery
9
Ignition switch ACC
19
Signal name
Connector
Terminal
Ignition switch position
Value (Approx.)
Battery power supply
M48
2
OFF
Battery voltage
ACC power supply
M48
4
ACC
Battery voltage
Signal name
Connector
Terminal
Ignition switch position
Continuity
Ground
M48
1
OFF
Existed
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-165
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
SONAR CONTROL UNIT (WITH AROUND VIEW MONITOR)
SONAR CONTROL UNIT (WITH AROUND VIEW MONITOR) : Diagnosis Procedure
INFOID:0000000006216325
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch ON.
2.
Check voltage between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace sonar control unit power supply harness.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect sonar control unit connector.
3.
Check continuity between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace sonar control unit ground harness.
Power source
Fuse No.
Ignition switch ACC or ON
19
Signal name
Connector
Terminal
Ignition switch position
Value (Approx.)
Battery power supply
M47
13
ACC
Battery voltage
Signal name
Connector
Terminal
Ignition switch position
Continuity
Ground
M47
24
OFF
Existed
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