NISSAN LATIO 2007 Service Repair Manual

AV-34
AUDIO
Revision: June 20062007 Versa
Sound Is Not Heard From Rear Door Speaker (Base System)EKS00IA1
1. HARNESS CHECK
1. Disconnect audio unit connector and rear door speaker connector.
2. Check continuity between audio unit (A) connector terminal and
rear door speaker (B) connector terminal.
3. Check continuity between audio unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 2.
NG >>

Check connector housings for disconnected or loose terminals.

Repair harness or connector.
Te r m i n a l s
Continuity AB
Connector Terminal Connector Terminal
M435
D207-
Ye s 4+
14
D307-
13 +
Terminals
Continuity Audio unit
—
Connector Terminal
M435
Ground No 4
14
13
WKIA5353E

AUDIO
AV-35
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: June 20062007 Versa
2. REAR SPEAKER SIGNAL CHECK
1. Connect audio unit connector and rear speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector termi-
nals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace speaker. Refer to AV- 4 3 , "REAR DOOR
SPEAKER" .
NG >> Replace audio unit. Refer to AV- 4 3 , "
AUDIO UNIT" .
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nectorTe r m i -
nalCon-
nectorTe r m i -
nal
M434
M435
Receive
audio
signal 13 14
WKIA5354E
SKIA0177E

AV-36
AUDIO
Revision: June 20062007 Versa
Sound Is Not Heard From Front Door Speaker or Tweeter (Mid Level and Pre-
mium System)
EKS00IA2
1. HARNESS CHECK
1. Disconnect audio unit connector and front door speaker and tweeter connector (LH or RH).
2. Check continuity between audio unit harness connector terminal
and front door speaker and tweeter harness connector terminal.
3. Check continuity between audio unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 2.
NG >>

Check connector housings for disconnected or loose terminals.

Repair harness or connector.
Terminals
Continuity Audio unit. Speaker or tweeter
Connector Terminal Connector Terminal
M432
M46+
Ye s 3-
11
M47+
12 -
2
D12+
3-
11
D112+
12 -
Te r m i n a l s
Continuity Audio unit
—
Connector Terminal
M432
Ground No 3
11
12
WKIA5351E

AUDIO
AV-37
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: June 20062007 Versa
2. FRONT SPEAKER SIGNAL CHECK
1. Connect audio unit connector, front door speaker connector and tweeter connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit connector terminals with
CONSULT-II or oscilloscope.
OK or NG
OK >> Replace front speaker. Refer to AV-43, "FRONT DOOR
SPEAKER" .
NG >> Replace audio unit. Refer to AV- 4 3 , "
AUDIO UNIT" .
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nectorTe r m i -
nalCon-
nectorTe r m i -
nal
M512
M513
Receive
audio
signal 11 1 2
WKIA5352E
SKIA0177E

AV-38
AUDIO
Revision: June 20062007 Versa
Sound Is Not Heard From Rear Door Speaker (Mid Level and Premium System)EKS00IA3
1. HARNESS CHECK
1. Disconnect audio unit connector and rear door speaker connector.
2. Check continuity between audio unit harness connector terminal
and speaker harness connector terminal.
3. Check continuity between audio unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 2.
NG >>

Check connector housings for disconnected or loose terminals.

Repair harness or connector.
Terminals
Continuity Audio unit Speaker
Connector Terminal Connector Terminal
M434
D207+
Ye s 5-
13
D307+
14 -
Te r m i n a l s
Continuity Audio unit
—
Connector Terminal
M434
Ground No 5
13
14
WKIA5353E

AUDIO
AV-39
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: June 20062007 Versa
2. REAR SPEAKER SIGNAL CHECK
1. Connect audio unit connector and rear door speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector termi-
nals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace speaker. Refer to AV- 4 3 , "REAR DOOR
SPEAKER" .
NG >> Replace audio unit. Refer to AV- 4 3 , "
AUDIO UNIT" .
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nec-
torTe r m i -
nalCon-
nec-
torTe r m i -
nal
M435
M434
Receive
audio
signal 14 13
WKIA5354E
SKIA0177E

AV-40
AUDIO
Revision: June 20062007 Versa
Sound Is Not Heard From Subwoofer (Premium System)EKS00IA4
1. CHECK FUSE
Check that the following fuse is not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of blown fuse before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. EQ SETTING CHECK
1. Ensure that subwoofer amp. connector B29 and audio unit harness connectors M43, M44 and M45 are
securely connected.
2. Turn the ignition switch to the ACC position.
3. Press the "AUDIO", "AUX", and "TUNE DOWN" switches simultaneously, the current EQ Setting will be
displayed.
Is "Woofer On" displayed?
YES >> GO TO 3.
NO >> Disconnect all audio unit harness connectors and wait for 2 minutes in order to reset the audio
unit. Reconnect audio unit connectors M44 and M45 first followed by M43 last. Repeat Steps 1
through 3 to confirm that "Woofer On" is now displayed.
3. POWER SUPPLY CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Disconnect subwoofer connector.
3. Check voltage between the subwoofer and ground.
OK or NG
OK >> GO TO 4.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness or connector.
4. GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Check continuity between subwoofer harness connector B29
terminal 3 and ground.
OK or NG
OK >> GO TO 5.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness or connector.
Unit Terminals Signal name Fuse No.
Subwoofer 1 Battery power 27
UnitTe r m i n a l N o .
OFF ACC ON (+)
(-)
Connector Terminal
Sub-
wooferB29 1 GroundBattery
voltageBattery
voltageBattery
voltage
WKIA5445E
Continuity should exist.
WKIA5446E

AUDIO
AV-41
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: June 20062007 Versa
5. CHECK SUBWOOFER ON SIGNAL
1. Turn ignition switch to ACC.
2. Operate system and check voltage between subwoofer harness
connector B29 terminal 4 and ground.
OK or NG
OK >> GO TO 6.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness or connector.
6. HARNESS CHECK
1. Turn ignition switch OFF.
2. Disconnect audio unit connector and subwoofer connectors.
3. Check continuity between audio unit harness connector terminal
and subwoofer harness connector terminal.
4. Check continuity between audio unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 7.
NG >>

Check connector housings for disconnected or loose terminals.

Repair harness or connector. Voltage : Approx. 11.3V
WKIA5447E
Te r m i n a l s
Continuity Audio unit Subwoofer
Connector Terminal Connector Terminal
M4424
B296
Ye s
26 2
Terminals
Continuity Audio unit
—
Connector Terminal
M4424
Ground No
26
WKIA5448E

AV-42
AUDIO
Revision: June 20062007 Versa
7. SUBWOOFER SIGNAL CHECK
1. Connect audio unit connector and subwoofer connector.
2. Turn ignition switch to ACC.
3. Check the signal between audio unit harness connector termi-
nals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace subwoofer. Refer to AV- 4 7 , "SUBWOOFER" .
NG >> Replace audio unit. Refer to AV- 4 3 , "
AUDIO UNIT" .
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nec-
torTe r -
minalCon-
nec-
torTe r -
minal
M44 26 M44 24Receive
audio
signal
WKIA5449E
SKIA0177E

AUDIO
AV-43
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: June 20062007 Versa
Removal and InstallationEKS00I4G
AUDIO UNIT
Removal
1. Remove cluster lid C. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove the audio unit screws (A), disconnect the connectors
and remove the audio unit (1).
3. 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-27, "DOOR FINISHER" .
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-27, "DOOR FINISHER" .
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-32, "BODY SIDE TRIM" .
SKIB4726E
SKIB4728E
SKIB4729E