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OK or NG
OK >> GO TO 3.
NG >> • Check connector housings
for disconnected or loose
terminals.
• Repair harness or connector.
3.GROUND CI NISSAN LATIO 2010 Service Repair Manual AV-68
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OK or NG
OK >> GO TO 3.
NG >> • Check connector housings
for disconnected or loose
terminals.
• Repair harness or connector.
3.GROUND CI](/manual-img/5/57358/w960_57358-464.png)
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OK or NG
OK >> GO TO 3.
NG >> • Check connector housings
for disconnected or loose
terminals.
• Repair harness or connector.
3.GROUND CIRCUIT CHECK
Check continuity between AV control unit harness connectors M43
(A), M70 (B) terminals 20, 32 and ground.
OK or NG
OK >> Inspection End.
NG >> • Check connector housings for disconnected or loose
terminals.
• Repair harness or connector.
Steering Switch CheckINFOID:0000000005988558
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect audio unit connector and combination switch (spiral cable) connector.
3. Check continuity between audio unit harness connecto r (A) terminals and combination switch (spiral
cable) harness connector (B) terminals.
4. Check continuity between audio unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness.
Unit Te r m i n a l N o .
OFF ACC ON
(+)
(-)
Connector Terminal
AV c o n t r o l
unit M4319 Ground
Battery
voltage Battery
voltage Battery
voltage
7Ground0V Battery
voltage Battery
voltage
WKIA5769E
Continuity should exist.
AWNIA2216ZZ
Te r m i n a l s
Continuity
AB
Connector Terminal Connector Terminal
M43 6
M30 24
Ye s
15 31
16 32
Te r m i n a l s Continuity
(+)
(–)
Connector Terminal
M43 6
Ground No
15
16
AWNIA1823GB
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2. Check continuity betw NISSAN LATIO 2010 Service Repair Manual AUDIOAV-69
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1. Disconnect combination switch (spiral cable) connector M31.
2. Check continuity betw](/manual-img/5/57358/w960_57358-465.png)
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2.SPIRAL CABLE CHECK
1. Disconnect combination switch (spiral cable) connector M31.
2. Check continuity between combination switch (spiral cable) ter- minals.
OK or NG
OK >> GO TO 4.
NG >> Replace combination switch (spiral cable). Refer to SRS-37, "
Removal and Installation".
3.CHECK STEERING SWITCH RESISTANCE
Check resistance between combination switch (spiral cable) connector M31 terminals.
OK or NG
OK >> Inspection End.
NG >> Replace steering wheel audio control switch. Refer to AV-72, "
Removal and Installation".
Sound Is Not Heard from Front Door Speaker or Front TweeterINFOID:0000000005988550
1.HARNESS CHECK
1. Disconnect AV control unit connector and front door speaker and front tweeter connector (LH or RH).
16 - 32 : Continuity should exist.
17 - 31 : Continuity should exist.
20 - 24 : Continuity should exist.
WKIA4424E
Terminal Signal name
ConditionResistance
(Ω)
(Approx.)
16 17 Seek (down) Depress Seek down switch.
165
Phone/ Send Depress Phone/ Send switch. 0
Volume (down) Depress volume down switch. 652
20 17 Seek (up) Depress Seek up switch.
165
Phone/ End Depress Phone/ End switch. 0
Volume (up) Depress volume up switch. 652
LKIA0191E
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AV-70
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2. Check continuity between AV control unit harness connector ter-
minal and front door speaker and front tweeter harness connec-
tor terminal.
3. Check continuity between AV control unit harness connector ter- minal and ground.
OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
2.FRONT SPEAKER SIGNAL CHECK
1. Connect AV control unit connector, front door speaker connector and front tweeter connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
Te r m i n a l s
Continuity
AV control unit Speaker or tweeter
Connector Terminal Connector Terminal
A: M43 2
B: M46 +
Ye s
3-
11 B: M47 +
12 -
2 B: D12 +
3-
11 B: D112 +
12 -
Te r m i n a l s Continuity
AV control unit
—
Connector Terminal
A: M43 2
Ground No
3
11
12
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4. Check the signal between AV control unit connector terminals with CONSULT-III or oscilloscope.
OK or NG
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4. Check the signal between AV control unit connector terminals with CONSULT-III or oscilloscope.
OK or NG
O](/manual-img/5/57358/w960_57358-467.png)
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4. Check the signal between AV control unit connector terminals with CONSULT-III or oscilloscope.
OK or NG
OK >> Replace front speaker. Refer to AV-72, "Removal and
Installation".
NG >> Replace AV control unit. Refer to AV-72, "
Removal and
Installation".
Sound Is Not Heard from Rear SpeakerINFOID:0000000005988551
1.HARNESS CHECK
1. Disconnect AV control unit connector and rear speaker connector.
2. Check continuity between AV control unit harness connector ter- minal and rear speaker harness connector terminal.
3. Check continuity between AV control unit harness connector ter- minal and ground.
OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
2.REAR SPEAKER SIGNAL CHECK
Te r m i n a l s
Condi-tion Reference
signal
(+)
(-)
Con-
nector Te r m i -
nal Con-
nector Te r m i -
nal
M43 2
M43 3
Receive
audio
signal
11
1 2
WKIA5853E
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Te r m i n a l s
Continuity
AV control unit Speaker
Connector Terminal Connector Terminal
A: M43 4
B: D207 +
Ye s
5-
13 B: D307 +
14 -
Te r m i n a l s Continuity
AV control unit
—
Connector Terminal
A: M43 4
Ground No
5
13
14
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1. Connect AV control unit connector and rear speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the sig NISSAN LATIO 2010 Service Repair Manual AV-72
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1. Connect AV control unit connector and rear speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the sig](/manual-img/5/57358/w960_57358-468.png)
AV-72
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1. Connect AV control unit connector and rear speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between AV control unit harness connector ter-
minals with CONSULT-III or oscilloscope.
OK or NG
OK >> Replace speaker. Refer to AV-72, "Removal and Instal-
lation".
NG >> Replace AV control unit. Refer to AV-72, "
Removal and
Installation".
Removal and InstallationINFOID:0000000005924420
AUDIO UNIT
Removal
1. Disconnect the battery negative terminal.
2. Remove cluster lid C. Refer to IP-11
.
3. Remove the audio unit screws (A), disconnect the connectors and remove the audio unit (1).
4. Remove the audio unit bracket.
Installation
Installation is in the reverse order of removal.
FRONT DOOR SPEAKER
Removal
1. Remove the front door finisher. Refer to EI-34.
Te r m i n a l s
Condi-tion Reference
signal
(+)
(-)
Con- nec- tor Te r m i -
nal Con-
nec- tor Te r m i -
nal
M43 4
M43 5
Re-
ceive
audio
signal
13
14
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2. Remove the front door speaker screws (A), disconnect the con- nector and remove the front door speaker (1).
Installation
Installation is in the reverse order of removal.
REAR DOOR SPEAKER
Removal
1. Remove the rear door finisher. Refer to EI-34.
2. Remove the rear door finisher screws (A), disconnect the con- nector and remove the rear door speaker (1).
Installation
Installation is in the reverse order of removal.
TWEETER
Removal
1. Remove the front pillar garnish. Refer to EI-39.
2. Remove the tweeter screw (A), disconnect the connector and remove the tweeter (1).
Installation
Installation is in the reverse order of removal.
STEERING WHEEL AUDIO CONTROL SWITCHES
SKIB4728E
SKIB4729E
SKIB4730E
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AV-74
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Removal
1. Remove the steering wheel. Refer to PS-7, "Removal and Installation".
2. Remove the steering wheel finisher cover.
3. Remove the screws and the steering wheel audio control switches.
Installation
Installation is in the reverse order of removal.
1. Steering wheel finisher cover 2. Steering wheel 3. Steering wheel audio control switch-
es
A. Screws
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NAVIGATION SYSTEMAV-75
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How to Proceed with Trouble DiagnosisINFOID:0000000005924437
Refer to AV-65, "Symptom Chart".
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