Hybrid Battery System

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

WITH CONSULT
1.Turn ignition switch ON and wait at least 10 seconds.
2.Select "Self Diagnostic Result" mode of "HV BAT" using CONSULT.
Is P0A09 detected?
YES- .
NO- INSPECTION END


Diagnosis Procedure


WARNING:
- Because 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.
- Be sure to remove the service plug in order to shut off the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.
- Be sure to put the removed service plug in your pocket and carry it with you so that another person does not accidentally connect it while work is in progress.
- Be sure to wear insulating protective gear consisting of glove, shoes 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 similar item to prevent other persons from contacting them.
- High Voltage Precautions.

CAUTION:
There is the possibility of a malfunction occurring if the vehicle is changed to READY status while the service plug is removed. Therefore do not change the vehicle to READY status unless instructed to do so in the Service Manual.

1. PERFORM SELF-DIAGNOSIS

WITH CONSULT
1.Perform "All DTC Reading" with CONSULT.
2.Check if the "P2519" is detected in "Self Diagnostic Result" of "EV/HEV".
Is P2519 detected?
YES- Perform hybrid control system diagnosis procedure. P2519.
NO- GO TO 2.

2. CHECK FUSE

1.Turn ignition switch is OFF.
2.Pull out 10A fuse (No.73) and check that the fuse is not fusing.
NOTE:
Fuse, Fusible Link and Relay Box for fuse layout.
Is the inspection result normal?
YES- GO TO 3.
NO- Replace the fuse after repairing the applicable circuit.

3. CHECK 12V BATTERY CHARGING OUTPUT CIRCUIT-1

Check connection status Li-ion battery (DC/DC converter) harness connector and Battery terminal with fusible link harness connector.
Is the inspection result normal?
YES- GO TO 4.
NO- Recover the connection status.

4. CHECK 12V BATTERY CHARGING OUTPUT CIRCUIT-2

Check continuity between Li-ion battery (DC/DC converter) harness connector and Battery terminal with fusible link harness connector.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair harness or connector.

5. PRECONDITIONING


WARNING:
Shut off high voltage circuit. How to Cut Off High Voltage.
Remove Li-ion battery. Removal and Installation.
- GO TO 6.

6. CHECK DC/DC CONVERTER HARNESS CIRCUIT

1.Check continuity between Li-ion battery controller harness connector and DC/DC converter harness connector.





2.Also check harness for short to ground.
Is the inspection result normal?
YES- GO TO 7.
NO- Repair harness or connector.

7. CHECK LI-ION BATTERY CONTROLLER

Check continuity between Li-ion battery controller harness connector.





Is the inspection result normal?
YES- Replace DC/DC converter [DC/DC Converter Disassembly and Assembly] and Li-ion battery controller [Li-Ion Battery Controller Disassembly and Assembly].
NO- Replace Li-ion battery controller. Li-Ion Battery Controller Disassembly and Assembly.