Nissan Leaf. Instruction — part 971
MWI
COMMUNICATION SIGNAL (METER
→UPPER) CIRCUIT
MWI-87
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
COMMUNICATION SIGNAL (METER
→UPPER) CIRCUIT
Description
INFOID:0000000010122423
The communication line (METER
→ UPPER) is used to communicate signals between the combination meter
and the upper meter in order to control the upper meter.
Diagnosis Procedure
INFOID:0000000010122424
Regarding Wiring Diagram information, refer to
.
1.
CHECK CONNECTOR
Check combination meter, upper meter and terminals (combination meter side, upper meter side, and harness
side) for looseness or bent.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connector.
2.
CHECK COMMUNICATION LINE (METER
→ UPPER) SIGNAL CIRCUIT
1. Power switch OFF.
2. Disconnect combination meter and upper meter connector.
3. Check continuity between combination meter harness connector and upper harness connector.
4. Check continuity between combination meter harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK COMMUNICATION LINE (METER
→ UPPER) OUTPUT SIGNAL
1. Connect combination meter and upper meter connector.
2. Power switch ON.
3. Check voltage between combination meter and ground.
Combination meter
Upper meter
Continuity
Connector
Terminal
Connector
Terminal
M34
32
M62
8
Yes
33
4
Combination meter
Ground
Continuity
Connector
Terminal
M34
32
No
33
MWI-88
< DTC/CIRCUIT DIAGNOSIS >
COMMUNICATION SIGNAL (METER
→UPPER) CIRCUIT
Is the inspection result normal?
YES
>> Replace upper meter. Refer to
MWI-103, "Removal and Installation"
.
NO
>> Replace combination meter. Refer to
MWI-102, "Removal and Installation"
Terminal
Voltage
(Approx.)
(+)
(-)
Combination meter
Connector
Terminal
Ground
M34
32
NOTE:
Reference waveform
33
NOTE:
Reference waveform
JSNIA3767GB
JSNIA3768GB
MWI
METER CONTROL SWITCH SIGNAL CIRCUIT
MWI-89
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
METER CONTROL SWITCH SIGNAL CIRCUIT
Diagnosis Procedure
INFOID:0000000010122425
Regarding Wiring Diagram information, refer to
.
1.
CHECK COMBINATION METER INPUT SIGNAL
1. Power switch ON.
2. Check voltage between the following terminals of the combination meter.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> GO TO 2.
2.
CHECK METER CONTROL SWITCH SIGNAL CIRCUIT
1. Power switch OFF.
2. Disconnect combination meter connector and meter control switch connector.
3. Check continuity between combination meter harness connector and meter control switch harness con-
nector.
4. Check continuity between combination meter harness connector and ground.
Combination meter
Condition
Voltage
(Approx.)
Connector
Terminals
(+)
(
−)
M34
13
12
When
switch (enter switch) is pressed
0 V
Other than the above
5 V
14
When
switch (select switch) is pressed
0 V
Other than the above
5 V
15
When trip reset switch is pressed
0 V
Other than the above
5 V
16
When
switch (illumination control switch) is pressed
0 V
Other than the above
5 V
Terminals
Continuity
Combination meter
Meter control switch
Connector
Terminal
Connector
Terminal
M34
12
M26
5
Yes
13
1
14
12
15
11
16
6
MWI-90
< DTC/CIRCUIT DIAGNOSIS >
METER CONTROL SWITCH SIGNAL CIRCUIT
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connector.
Component Inspection
INFOID:0000000010122426
1.
CHECK METER CONTROL SWITCH
1. Power switch OFF.
2. Disconnect meter control switch connector.
3. Check meter control switch.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace meter control switch. Refer to
MWI-104, "Removal and Installation"
.
Combination meter
Ground
Continuity
Connector
Terminal
M34
12
No
13
14
15
16
Terminals
Condition
Continuity
Meter control switch
1
5
When
switch (enter switch) is pressed
Yes
Other than the above
No
6
When
switch (illumination control switch) is pressed
Yes
Other than the above
No
11
When trip reset switch is pressed
Yes
Other than the above
No
12
When
switch (select switch) is pressed
Yes
Other than the above
No
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст