Nissan Leaf. Manual — part 532
EVC-152
< DTC/CIRCUIT DIAGNOSIS >
P0A8E 12V BATTERY POWER SUPPLY
P0A8E 12V BATTERY POWER SUPPLY
DTC Logic
INFOID:0000000010120617
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. Set the vehicle to READY and wait at least 30 seconds.
2. Check self-diagnostic result.
Is DTC detected?
YES
>> Proceed to
EVC-152, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010120618
1.
CHECK 12V BATTERY
Check that the correct 12V battery is installed.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace 12V battery with a correct one.
2.
CHECK SELF-DIAGNOSTIC RESULT IN PDM (POWER DELIVERY MODULE)
With CONSULT
Check self-diagnostic result in “CHARGER/PD MODULE”.
Is any DTC detected?
YES
>> Perform trouble diagnosis for detected DTC. Refer to
NO
>> GO TO 3.
3.
CHECK SELF-DIAGNOSTIC RESULT IN VCM
With CONSULT
Check self-diagnostic result in “EV/HEV”.
Is DTC (excluding P0A8E) related to DC/DC converter detected?
YES
>> Perform trouble diagnosis for detected DTC. Refer to
.
NO
>> GO TO 4.
4.
CHECK DC/DC CONVERTER POWER VOLTAGE VARIABLE CONTROL SIGNAL
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0A8E
14V POWER SUPPLY
(14 V power module system
voltage high)
VCM detects that a voltage of 12V battery power sup-
ply remains more than 16 V for 25.5 seconds during
READY state.
• 12V battery
• Harness or connectors
(The signal circuit is open or
shorted.)
• DC/DC converter
• VCM
P0A8E 12V BATTERY POWER SUPPLY
EVC-153
< DTC/CIRCUIT DIAGNOSIS >
D
E
F
G
H
I
J
K
L
M
A
B
EVC
N
O
P
With CONSULT
1. On the CONSULT screen, select “EV/HEV” >> “DATA MONITOR” >> “DC/DC CONV REQ VOLT”.
2. Check that the value of “DC/DC CONV REQ VOLT” is less than 16 V.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
NO
>> Replace VCM. Refer to
EVC-423, "Removal and Installation"
.
EVC-154
< DTC/CIRCUIT DIAGNOSIS >
P0A8F 12V BATTERY POWER SUPPLY
P0A8F 12V BATTERY POWER SUPPLY
DTC Logic
INFOID:0000000010120619
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. Under the following conditions, and wait at least 30 seconds.
2. Check self-diagnostic result.
Is DTC detected?
YES
>> Proceed to
EVC-154, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010120620
1.
INTERVIEW THE CUSTOMER
Interview the customer to see if there is a history that all of the following conditions are satisfied for a long
time.
NOTE:
This DTC may be detected if the above state continues for a long time.
Is the inspection result normal?
YES
>> Explain the customer that this is the normal operation.
NO
>> GO TO 2.
2.
CHECK SELF-DIAGNOSTIC RESULT IN PDM (POWER DELIVERY MODULE)
With CONSULT
Check self-diagnostic result in “CHARGER/PD MODULE”.
Is any DTC detected?
YES
>> Perform trouble diagnosis for detected DTC. Refer to
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0A8F
14V POWER SUPPLY
(14 V power module system
performance)
When shift is except P range, VCM detects
that a voltage of 12V battery power supply
remains less than 12 V for 10 seconds.
• Harness or connectors
(The sensor circuit is open or shorted.)
• DC/DC converter
• IPDM E/R
Power switch
READY
Shift position
Except P range
Power switch
ON
Shift position
Except P range
P0A8F 12V BATTERY POWER SUPPLY
EVC-155
< DTC/CIRCUIT DIAGNOSIS >
D
E
F
G
H
I
J
K
L
M
A
B
EVC
N
O
P
NO
>> GO TO 3.
3.
CHECK SELF-DIAGNOSTIC RESULT IN VCM
With CONSULT
Check self-diagnostic result in “EV/HEV”.
Is any DTC that related DC/DC converter other than P0A8F detected?
YES
>> Perform trouble diagnosis for detected DTC. Refer to
.
NO
>> GO TO 4.
4.
CHECK 12V BATTERY POWER SUPPLY
1. Turn power switch OFF.
2. Check the voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 5.
5.
CHECK FUSE
1. Pull out #43 fuse.
2. Check the fuse is not fusing.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace the fuse after repairing the applicable circuit.
6.
CHECK IPDM E/R
1. Insert the fuse which pulled out.
2. Remove IPDM E/R.
3. Check the continuity between IPDM E/R connector terminals.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace IPDM E/R. Refer to
PCS-29, "Removal and Installation"
.
7.
CHECK 12V BATTERY POWER SUPPLY CIRCUIT
1. Disconnect VCM harness connector.
2. Check the continuity between IPDM E/R harness connector and VCM harness connector.
3. Also check harness for short to ground.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
+
−
Voltage
IPDM E/R
Connector
Terminal
E14
42
Ground
12V battery volt-
age
IPDM E/R
Continuity
+
−
Terminal
2
42
Existed
+
−
Continuity
IPDM E/R
VCM
Connector
Terminal
Connector
Terminal
E14
42
E61
11
Existed
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст