Nissan Leaf. Manual - part 575
EVC-324
< DTC/CIRCUIT DIAGNOSIS >
P31D5 PRE-CHARGE RELAY
P31D5 PRE-CHARGE RELAY
DTC Logic
INFOID:0000000010120792
DTC DETECTION LOGIC
NOTE:
If DTC P31D5 is displayed with DTC P0AA2, P31D4, P31DB, or P31DD, perform diagnosis for DTC P0AA2,
P31D4, P31DB, or P31DD.
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 perform test drive.
2. Turn power switch OFF and wait at least for 60 seconds.
3. Check self-diagnostic result.
Is DTC detected?
YES
>> Proceed to
EVC-324, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010120793
DANGER:
Since hybrid vehicles and electric vehicles contain a high voltage battery, there is the risk of
electric shock, electric leakage, or similar accidents if the high voltage component and vehicle are
handled incorrectly. Be sure to follow the correct work procedures when performing inspection and
maintenance.
WARNING:
• Be sure to remove the service plug in order to disconnect the high voltage circuits before perform-
ing inspection or maintenance of high voltage system harnesses and parts.
• To prevent the removed service plug from being connected by mistake during the procedure, always
carry it in your pocket or put it in the tool box.
• Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses
before beginning work on the high voltage system.
• Clearly identify the persons responsible for high voltage work and ensure that other persons do not
touch the vehicle. When not working, cover high voltage parts with an insulating cover sheet or sim-
ilar item to prevent other persons from contacting them.
• Refer to
EVC-10, "High Voltage Precautions"
CAUTION:
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P31D5
PRE CHARGE RELAY
(Pre-charge relay)
• The voltage of the traction motor inverter is 100 V or more im-
mediately before starting charging or immediately before
READY.
• The voltage of the traction motor inverter is 100 V or more
when only the system main relay 2 is ON.
• Harness or connectors
• Battery J/B
• Traction motor inverter
• VCM