Nissan Leaf. Manual — part 569
EVC-300
< DTC/CIRCUIT DIAGNOSIS >
P31B0, P31B4 CAN COMMUNICATION
P31B0, P31B4 CAN COMMUNICATION
DTC Logic
INFOID:0000000010120769
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
• Turn power switch OFF and wait at least 90 seconds.
CAUTION:
During this period, never perform vehicle handling such as opening and closing of doors. If some
kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the
vehicle handling.
• Make sure that 12V battery voltage is 11 V or more.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn power switch ON and wait at least 10 seconds.
2. Check DTC.
Is DTC detected?
YES
>> Proceed to
EVC-300, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010120770
1.
PERFORM TROUBLE DIAGNOSIS FOR CAN COMMUNICATION
Perform trouble diagnosis for CAN communication. Refer to
LAN-17, "Trouble Diagnosis Flow Chart"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK SELF-DIAGNOSTIC RESULT IN VCM
With CONSULT
Check self-diagnostic result in “EV/HEV”.
Is any CAN error (U1000 excluded) other than DTC P31B0 and P31B4 detected?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
REPLACE VCM
With CONSULT
1. Replace VCM. Refer to
EVC-423, "Removal and Installation"
.
2. Perform DTC confirmation procedure again. Refer to
Is DTC P31B0 or P31B4 detected again?
YES
>> Replace AV control unit. Refer to
AV-318, "Removal and Installation"
(navigation without BOSE),
AV-488, "Removal and Installation"
AV-593, "Removal and Installation"
(with telematics).
NO
>> INSPECTION END
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P31B0
COMMUNICATION ERROR
(Communication error)
When VCM detects an error signal that is received from AV con-
trol unit via CAN communication
• CAN communication
• AV control unit
• VCM
P31B4
P31B0, P31B4 CAN COMMUNICATION
EVC-301
< DTC/CIRCUIT DIAGNOSIS >
D
E
F
G
H
I
J
K
L
M
A
B
EVC
N
O
P
4.
REPLACE AV CONTROL UNIT
With CONSULT
1. Replace AV control unit. Refer to
AV-318, "Removal and Installation"
(navigation without BOSE),
AV-593, "Removal and Installation"
(with telematics).
2. Perform DTC confirmation procedure again. Refer to
Is DTC P31B0 or P31B4 detected again?
YES
>> Replace VCM. Refer to
EVC-423, "Removal and Installation"
.
NO
>> INSPECTION END
EVC-302
< DTC/CIRCUIT DIAGNOSIS >
P31B2, P31B5 CAN COMMUNICATION
P31B2, P31B5 CAN COMMUNICATION
DTC Logic
INFOID:0000000010120771
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
• Turn power switch OFF and wait at least 90 seconds.
CAUTION:
During this period, never perform vehicle handling such as opening and closing of doors. If some
kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the
vehicle handling.
• Make sure that 12V battery voltage is 11 V or more.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn power switch OFF.
2. Turn power switch ON and wait at least 10 seconds.
3. Check DTC.
Is DTC detected?
YES
>> Proceed to
EVC-302, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010120772
1.
PERFORM TROUBLE DIAGNOSIS FOR CAN COMMUNICATION
Perform trouble diagnosis for CAN communication. Refer to
LAN-17, "Trouble Diagnosis Flow Chart"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK SELF-DIAGNOSTIC RESULT IN VCM
With CONSULT
Check self-diagnostic result in “EV/HEV”.
Is any CAN error (U1000 excluded) other than DTC P31B2 and P31B5 detected?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
REPLACE VCM
With CONSULT
1. Replace VCM. Refer to
EVC-423, "Removal and Installation"
.
2. Perform DTC confirmation procedure again. Refer to
Is DTC P31B2 or P31B5 detected again?
YES
>> Replace combination meter. Refer to
MWI-102, "Removal and Installation"
NO
>> INSPECTION END
4.
REPLACE COMBINATION METER
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P31B2
COMMUNICATION ERROR
VCM detects an error signal that is received from combination
meter via CAN communication
• CAN communication
• Combination meter
• VCM
P31B5
P31B2, P31B5 CAN COMMUNICATION
EVC-303
< DTC/CIRCUIT DIAGNOSIS >
D
E
F
G
H
I
J
K
L
M
A
B
EVC
N
O
P
With CONSULT
1. Replace combination meter. Refer to
MWI-102, "Removal and Installation"
.
2. Perform DTC confirmation procedure again. Refer to
Is DTC P31B2 or P31B5 detected again?
YES
>> Replace VCM. Refer to
EVC-423, "Removal and Installation"
.
NO
>> INSPECTION END
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