Nissan Leaf. Instruction — part 1256
VSP-44
< DTC/CIRCUIT DIAGNOSIS >
B2741 VSP CONTROL UNIT
B2741 VSP CONTROL UNIT
DTC Logic
INFOID:0000000010121583
DTC DETECTION LOGIC
NOTE:
DTC “B2741” may be detected when VSP speaker or start up sound speaker connector is disconnected with-
out disconnecting the 12V battery negative terminal.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn power switch ON.
2. Erases “self-diagnosis results” with CONSULT.
3. Turn power switch OFF.
4. Turn power switch ON.
5. Check if the DTC “B2741” is detected in self-diagnosis results of “VSP”.
Is “B2741” detected?
YES
>> Refer to
.
NO
>> Refer to
GI-53, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000010121584
1.
CHECK START UP SOUND SPEAKER SIGNAL CIRCUIT
1. Turn power switch OFF.
2. Disconnect VSP control unit and start up sound speaker connector.
3. Check continuity between VSP control unit harness connector and start up sound speaker harness con-
nector.
4. Check continuity between VSP control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK START UP SOUND SPEAKER
Check start up sound speaker. Refer to
VSP-45, "Component Inspection (Start Up Sound Speaker)"
.
DTC
Display contents of
CONSULT
Diagnostic item is detected when...
Probable malfunction location
B2741
VSP CONTROL UNIT
• VSP control unit internal malfunction
• When open circuit is detected in VSP
speaker circuit or start up sound speaker
circuit
• When short circuit is detected in VSP
speaker circuit or start up sound speaker
circuit
• VSP control unit
• VSP speaker circuit
• VSP speaker
• Start up sound speaker circuit
• Start up sound speaker
VSP control unit
Start up sound speaker
Continuity
Connector
Terminal
Connector
Terminal
M47
15
M48
2
Existed
16
1
VSP control unit
Ground
Continuity
Connector
Terminal
M47
15
Not existed
16
B2741 VSP CONTROL UNIT
VSP-45
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
VSP
N
O
P
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace start up sound speaker.
3.
CHECK VSP SPEAKER SIGNAL CIRCUIT
1. Disconnect VSP speaker connector.
2. Check continuity between VSP control unit harness connector and VSP speaker harness connector.
3. Check continuity between VSP control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK VSP SPEAKER
Check VSP speaker. Refer to
VSP-45, "Component Inspection (VSP Speaker)"
.
Is the inspection result normal?
YES
>> Replace VSP control unit.
NO
>> Replace VSP speaker.
Component Inspection (Start Up Sound Speaker)
INFOID:0000000010121585
1.
CHECK START UP SOUND SPEAKER
1. Turn power switch OFF.
2. Disconnect start up sound speaker connector.
3. Check resistance between start up sound speaker terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace start up sound speaker.
Component Inspection (VSP Speaker)
INFOID:0000000010121586
1.
CHECK VSP SPEAKER
1. Turn power switch OFF.
2. Disconnect VSP speaker connector.
3. Check resistance between VSP speaker terminals.
Is the inspection result normal?
YES
>> INSPECTION END
VSP control unit
VSP speaker
Continuity
Connector
Terminal
Connector
Terminal
M47
7
E42
2
Existed
8
1
VSP control unit
Ground
Continuity
Connector
Terminal
M47
7
Not existed
8
Terminal
Resistance
1
2
Approx. 6
Ω
Terminal
Resistance
1
2
Approx. 4
Ω
VSP-46
< DTC/CIRCUIT DIAGNOSIS >
B2741 VSP CONTROL UNIT
NO
>> Replace VSP speaker.
POWER SUPPLY AND GROUND CIRCUIT
VSP-47
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
VSP
N
O
P
POWER SUPPLY AND GROUND CIRCUIT
APPROACHING VEHICLE SOUND FOR PEDESTRIANS (VSP) CONTROL UNIT
APPROACHING VEHICLE SOUND FOR PEDESTRIANS (VSP) CONTROL UNIT :
Diagnosis Procedure
INFOID:0000000010121587
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 power switch ON.
2. Check voltage between VSP control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace VSP control unit power supply harness.
3.
CHECK GROUND CIRCUIT
1. Turn power switch OFF.
2. Disconnect VSP control unit connector.
3. Check continuity between VSP control unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace VSP control unit ground harness.
Signal name
Fuse No.
Battery power supply
11
Power switch ON signal
5
Signal name
Connector No.
Terminal No.
Power switch position
Value (Approx.)
Battery power supply
M47
13
OFF
Battery voltage
Power switch ON signal
11
ON
Battery voltage
VSP control unit
Ground
Continuity
Connector
Terminal
M47
1
Existed
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