Nissan Pathfinder. Manual — part 85
AV
VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
AV-167
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO WITHOUT BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
Diagnosis Procedure
INFOID:0000000009174486
Regarding Wiring Diagram information, refer to
1.
CHECK VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M136 and display unit connector.
3. Check continuity between AV control unit connector M136 terminal 74 and display unit connector M93 ter-
minal 20.
4. Check continuity between AV control unit connector M136 terminal 74 and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
2.
CHECK VERTICAL SYNCHRONIZING (VP) SIGNAL
1. Connect AV control unit connector M136 and display unit connector.
2. Turn ignition switch ON.
3. Check signal between display unit connector M93 terminal 20 and ground.
Is inspection result normal?
YES
>> Replace AV control unit. Refer to
AV-187, "Removal and Installation"
.
NO
>> Replace display unit. Refer to
AV-191, "Removal and Installation"
AV control unit
Display unit
Continuity
Connector
Terminal
Connector
Terminal
M136
74
M93
20
Yes
AV control unit
Ground
Continuity
Connector
Terminal
M136
74
No
Display unit
Ground
Reference value
(+)
(
−)
Connector
Terminal
M93
20
—
SKIB3598E
AV-168
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO WITHOUT BOSE]
COMPOSITE IMAGE SIGNAL CIRCUIT
COMPOSITE IMAGE SIGNAL CIRCUIT
Diagnosis Procedure
INFOID:0000000009174487
Regarding Wiring Diagram information, refer to
1.
CHECK COMPOSITE IMAGE SIGNAL CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M136 and display unit connector.
3. Check continuity between AV control unit connector M136 terminal 53 and display unit connector M93 ter-
minal 15.
4. Check continuity between AV control unit connector M136 terminal 53 and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
2.
CHECK COMPOSITE IMAGE SIGNAL GROUND CIRCUIT CONTINUITY
Check continuity between AV control unit connector M136 terminal 54 and display unit connector M93 terminal
4.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK COMPOSITE IMAGE SIGNAL
1. Connect AV control unit connector M136 and display unit connector.
2. Turn ignition switch ON.
3. Check signal between display unit connector M93 terminal 15 and ground.
AV control unit
Display unit
Continuity
Connector
Terminal
Connector
Terminal
M136
53
M93
15
Yes
AV control unit
Ground
Continuity
Connector
Terminal
M136
53
No
AV control unit
Display unit
Continuity
Connector
Terminal
Connector
Terminal
M136
54
M93
4
Yes
Display unit
Ground
Condition
Reference value
(+)
(
−)
Connector
Terminal
M93
15
—
Camera image dis-
played.
SKIB2251J
AV
COMPOSITE IMAGE SIGNAL CIRCUIT
AV-169
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO WITHOUT BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Is inspection result normal?
YES
>> Replace display unit. Refer to
AV-191, "Removal and Installation"
NO
>> Replace AV control unit. Refer to
AV-187, "Removal and Installation"
.
AV-170
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO WITHOUT BOSE]
AUX IMAGE SIGNAL CIRCUIT
AUX IMAGE SIGNAL CIRCUIT
Diagnosis Procedure
INFOID:0000000009174488
Regarding Wiring Diagram information, refer to
1.
CHECK AUX IMAGE SIGNAL CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M137 and front auxiliary input jacks connector.
3. Check continuity between AV control unit connector M137 terminal 83 and front auxiliary input jacks con-
nector M205 terminal 7.
4. Check continuity between AV control unit connector M137 terminal 83 and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
2.
CHECK AUX IMAGE SIGNAL GROUND CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M137 and front auxiliary input jacks connector.
3. Check continuity between AV control unit connector M137 terminal 91 and front auxiliary input jacks con-
nector M205 terminal 8.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK AUX IMAGE SIGNAL
1. Connect AV control unit connector M137 and front auxiliary input jacks connector.
2. Turn ignition switch ON.
3. Check signal between front auxiliary input jacks connector M205 terminal 7 and ground.
AV control unit
Front auxiliary input jacks
Continuity
Connector
Terminal
Connector
Terminal
M137
83
M205
7
Yes
AV control unit
Ground
Continuity
Connector
Terminal
M137
83
No
AV control unit
Front auxiliary input jacks
Continuity
Connector
Terminal
Connector
Terminal
M137
91
M205
8
Yes
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