EV System CAN Communication

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 DTC CONFIRMATION PROCEDURE

With CONSULT
1.Turn power switch ON and wait at least 10 seconds.
2.Check DTC.
Is DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK SELF-DIAGNOSTIC RESULT IN VCM

With CONSULT
Check self-diagnostic result in "EV/HEV".
Is any EV system CAN error (U1000 excluded) other than DTC P3191, P3191C, and P31A7 detected?
YES- GO TO 2.
NO- GO TO 3.

2. REPLACE VCM

With CONSULT
1.Replace VCM. Refer to "Removal and Installation" Removal And Installation.
2.Perform DTC confirmation procedure again. Refer to "DTC Logic" .
Is DTC P3191, P319C, or P31A7 detected again?
YES- Replace traction motor inverter. Refer to "Removal and Installation"
NO- INSPECTION END

3. REPLACE TRACTION MOTOR INVERTER

With CONSULT
1.Replace traction motor inverter. Refer to "Removal and Installation"
2.Perform DTC confirmation procedure again. Refer to "DTC Logic" .
Is DTC P3191, P319C, or P31A7 detected again?
YES- Replace VCM. Refer to "Removal and Installation" Removal And Installation.
NO- INSPECTION END