P31E2

Description

VCM receives high voltage harness connector connection malfunction information via EV system CAN communication sent from on-board charger. When on-board charger detects the connection malfunction of high voltage harness or detects the connection detecting system malfunction, on-board charger sends a high voltage harness connector connection malfunction information to VCM.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

- Turn power switch OFF and wait at least 20 seconds.
- Make sure that 12V battery voltage is 11 V or more.
- GO TO 2.

2. PERFORM CONFIRMATION PROCEDURE-I

With CONSULT
1.Turn power switch ON at least 5 seconds.
2.Check self-diagnostic result.
Is DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- GO TO 3.

3. PERFORM CONFIRMATION PROCEDURE-II

With CONSULT
1.Set the vehicle to READY at least 10 seconds.
2.Check self-diagnostic result.
Is DTC detected?
YES- Proceed to "Diagnosis Procedure" .
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 disconnect the high voltage circuits before performing 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 similar item to prevent other persons from contacting them.
- Refer to "High Voltage Precautions" 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.
- Erase DTC after the work is completed.

1. CHECK SELF-DIAGNOSTIC RESULT IN ON-BOARD CHARGER

Check self-diagnostic result in on-board charger.
Are any DTC detected?
YES- Check the DTC.
NO- GO TO 2.

2. PRECONDITIONING


WARNING:
Disconnect high voltage. Refer to "How to Disconnect High Voltage" Service and Repair.
Check voltage in high voltage circuit. (Check that condenser are discharged.)
1.Lift up the vehicle and remove the Li-ion battery under covers. Refer to "Removal and Installation" Service and Repair (without Li-ion battery heater models), "Removal and Installation" Service and Repair (with Li-ion battery heater models).
2.Disconnect high voltage harness connector from front side of Li-ion battery. Refer to "Removal and Installation" Service and Repair (without Li-ion battery heater models), "Removal and Installation" Service and Repair (with Li-ion battery heater models).





3.Measure voltage between high voltage harness connector terminals.
DANGER:


Touching high voltage components without using the appropriate protective equipment will cause electrocution.
Standard: 5 V or less

CAUTION:
For voltage measurements, use a tester which can measure to 500 V or higher.
- GO TO 3.

3. CHECK HIGH VOLTAGE HARNESS CONNECTOR INSTALLATION

Check high voltage harness connectors installation condition visually and tactually.

CAUTION:
When reconnecting the high voltage harness connector, insert it slowly and directly.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace error-detected parts.

4. PERFORM DTC CONFIRMATION PROCEDURE AGAIN

1.Erase DTC.
2.Turn power switch OFF and wait at least 20 seconds.
3.Perform DTC confirmation procedure again. Refer to "DTC Logic" .
Is the DTC detected again?
YES- Replace VCM. Refer to "Removal and Installation" Removal And Installation.
NO- INSPECTION END