Nissan Leaf. Instruction — part 120
AV
STEERING SWITCH
AV-471
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION WITH BOSE]
C
D
E
F
G
H
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M
B
A
O
P
STEERING SWITCH
Diagnosis Procedure
INFOID:0000000010122696
Regarding Wiring Diagram information, refer to
.
1.
CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
1. Turn power switch OFF.
2. Disconnect combination switch connector M112.
3. Check resistance between the terminals of combination switch connector M112.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace steering switches. Refer to
AV-497, "Removal and Installation"
.
2.
CHECK COMBINATION SWITCH
Check continuity between combination switch connectors M112 and M92.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace spiral cable. Refer to
SR-23, "Removal and Installation"
3.
CHECK HARNESS BETWEEN COMBINATION SWITCH AND AUDIO UNIT
1. Disconnect AV control unit connector M100.
2. Check continuity between combination switch connector M92 and AV control unit connector M100.
Combination switch connector M112
Condition
Resistance
Ω
(Approx.)
Terminal
Terminal
14
17
Depress SOURCE switch.
1
Depress
switch.
121
Depress
switch.
321
Depress
switch.
723
Depress
switch.
2023
15
Depress
switch.
1
Depress
switch.
121
Depress
switch.
321
Depress
switch.
723
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
M112
14
M92
24
Yes
15
31
17
33
AV-472
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION WITH BOSE]
STEERING SWITCH
3. Check continuity between combination switch connector M92 and ground.
Is the inspection result normal?
YES
>> Replace AV control unit. Refer to
AV-488, "Removal and Installation"
.
NO
>> Repair or replace harness or connectors.
Combination switch
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M92
24
M100
6
Yes
31
16
33
15
Combination switch
Ground
Continuity
Connector
Terminal
M92
24
—
No
31
33
AV
USB CONNECTOR
AV-473
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION WITH BOSE]
C
D
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A
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USB CONNECTOR
Diagnosis Procedure
INFOID:0000000010122697
Regarding Wiring Diagram information, refer to
.
1.
CHECK USB INTERFACE HARNESS CONTINUITY
1. Turn power switch OFF.
2. Disconnect AV control unit connector M107 and USB connector M53.
3. Check continuity between AV control unit connector M107 and USB connector M53.
4. Check continuity between AV control unit connector M107 and ground.
Is the inspection result normal?
YES
>> Replace the USB connector. Refer to
AV-499, "Removal and Installation"
NO
>> Repair or replace harness or connectors.
AV control unit
USB
Continuity
Connector
Terminal
Connector
Terminal
M107
78
M53
2
Yes
79
1
80
4
81
3
82
5
AV control unit
—
Continuity
Connector
Terminal
M107
78
Ground
No
80
AV-474
< SYMPTOM DIAGNOSIS >
[NAVIGATION WITH BOSE]
MULTI AV SYSTEM
SYMPTOM DIAGNOSIS
MULTI AV SYSTEM
Symptom Table
INFOID:0000000010122698
RELATED TO AUDIO
Symptoms
Check items
Probable malfunction location
The disk cannot be removed.
AV control unit
Malfunction in AV control unit.
Refer to
AV-367, "On Board Diagnosis Function"
No sound comes out or the level of
the sound is low.
No sound from all speakers.
• Speaker circuit shorted to ground.
Refer to
.
• Bose amp. ON signal circuit malfunction.
Refer to
• Bose speaker amp. power supply and ground cir-
cuits malfunction.
Refer to
AV-453, "BOSE AMP. : Diagnosis Proce-
.
Only a certain speaker (front door
speaker LH, front door speaker RH,
tweeter LH, tweeter RH, rear door
speaker LH, rear door speaker RH, sub-
woofer) does not output sound.
• Poor connector connection of speaker.
• Sound signal circuit malfunction between AV con-
trol unit and Bose speaker amp.
Refer to:
-
er).
-
-
(rear door speak-
er).
-
• Sound signal circuit malfunction between Bose
speaker amp. and speaker.
Refer to:
-
er).
-
-
(rear door speak-
er).
-
• Malfunction in speaker.
Refer to:
-
AV-490, "Removal and Installation"
(front door
speaker).
-
AV-491, "Removal and Installation"
(tweeter).
-
AV-492, "Removal and Installation"
(rear door
speaker).
-
AV-500, "Removal and Installation"
• Malfunction in AV control unit.
Refer to
AV-367, "On Board Diagnosis Function"
• Malfunction in Bose speaker amp.
Replace Bose speaker amp. Refer to
.
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