Nissan Leaf. Manual — part 582
EVC-352
< DTC/CIRCUIT DIAGNOSIS >
P31E5 VCM POWER SUPPLY
NO
>> Repair or replace error-detected parts.
4.
CHECK 12V BATTERY POWER SUPPLY
Check the voltage between #77 fuse terminal and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Perform trouble diagnosis for 12V battery power supply.
5.
CHECK 12V BATTERY POWER SUPPLY CIRCUIT
1. Disconnect VCM harness connector.
2. Check the continuity between #77 fuse terminal and VCM harness connector.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
NO
>> Repair or replace error-detected parts.
6.
CHECK FUSE
1. Turn power switch ON.
2. Pull out #43 fuse and check that the fuse is not fusing.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> GO TO 7.
7.
CHECK 12V BATTERY POWER SUPPLY CIRCUIT
1. Disconnect IPDM E/R harness connector.
2. Disconnect VCM harness connector.
3. Check harness for short to ground, between IPDM E/R harness connector and VCM harness connector.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace error-detected parts.
8.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-29, "Removal and Installation"
NO
>> Repair or replace error-detected parts.
9.
CHECK 12V BATTERY POWER SUPPLY-1
1. Insert the fuse which pulled out.
2. Check the voltage between IPDM E/R harness connector and ground.
+
−
Voltage
#77 fuse terminal
Ground
12V battery voltage
+
−
Continuity
VCM
Connector
Terminal
#77 fuse termi-
nal
E62
79
Existed
+
−
Continuity
IPDM E/R
Connector
Terminal
E14
42
Ground
Not existed
P31E5 VCM POWER SUPPLY
EVC-353
< DTC/CIRCUIT DIAGNOSIS >
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Is the inspection result normal?
YES
>> GO TO 11.
NO
>> GO TO 10.
10.
CHECK 12V BATTERY POWER SUPPLY-2
Check IPDM E/R power supply circuit. Refer to
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-29, "Removal and Installation"
.
NO
>> Repair or replace error-detected parts.
11.
CHECK 12V BATTERY POWER SUPPLY CIRCUIT
1. Disconnect IPDM E/R harness connector.
2. Disconnect VCM harness connector.
3. Check the continuity between IPDM E/R harness connector and VCM harness connector.
4. Also check harness for short to ground.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> Repair or replace error-detected parts.
12.
CHECK VCM GROUND CIRCUIT
Check the continuity between VCM harness connector and ground.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
NO
>> Repair or replace error-detected parts.
+
−
Voltage
IPDM E/R
Connector
Terminal
E14
42
Ground
12V battery voltage
+
−
Continuity
IPDM E/R
VCM
Connector
Terminal
Connector
Terminal
E14
42
E122
11
Existed
+
−
Continuity
VCM
Connector
Terminal
E61
58
Ground
Existed
65
E62
118
126
EVC-354
< DTC/CIRCUIT DIAGNOSIS >
P31E7 RESTART INHIBITION
P31E7 RESTART INHIBITION
DTC Logic
INFOID:0000000010120816
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
INSPECTION START
NOTE:
This DTC is displayed when VCM detects DTC “P0AA6”. If this DTC displayed, perform trouble diagnosis for
DTC “P0AA6”.
>> Proceed to
EVC-354, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000010120817
Perform trouble diagnosis for DTC “P0AA6”. Refer to
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P31E7
RESTART INHIBITION
(Restart inhibition)
VCM detects DTC “P0AA6”.
VCM detects DTC
“P0AA6”.
P31E8 WATER PUMP
EVC-355
< DTC/CIRCUIT DIAGNOSIS >
D
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G
H
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A
B
EVC
N
O
P
P31E8 WATER PUMP
DTC Logic
INFOID:0000000010120818
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 and wait at least 60 seconds.
2. Set the vehicle to READY and wait at least 60 seconds.
3. Check DTC.
Is DTC detected?
YES
>> Proceed to
EVC-355, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010120819
1.
CHECK SELF-DIAGNOSTIC RESULT IN VCM
Check self-diagnostic result in “EV/HEV”.
Is DTC detected other than P31E8?
YES
>> Perform diagnosis procedure of detected DTC. Refer to
.
NO
>> GO TO 2.
2.
CHECK WATER PUMP FEEDBACK DUTY-1
With CONSULT
1. Set the vehicle to READY.
2. On the CONSULT screen, select “EV/HEV” >> “DATA MONITOR” >> “W/P 1 CRNT SPD DUTY”.
3. Check “W/P 1 CRNT SPD DUTY” value.
Is value more than 91%?
YES
>> GO TO 5.
NO
>> GO TO 3.
3.
CHECK WATER PUMP FEEDBACK DUTY-2
With CONSULT
Check “W/P 1 CRNT SPD DUTY” value.
Is value less than 3%?
YES
>> GO TO 5.
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P31E8
WATER PUMP 1
(Water pump 1)
Electric water pump feedback duty keeps either of the following
conditions for 30 seconds.
• Less than 3%
• 91% or more
• Between 13% and 17%
• Harness or connectors
• Electric water pump
• VCM
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