P3178

DTC Logic


DTC DETECTION LOGIC

NOTE:
If DTC P3178 is displayed with DTC P0AA0, P317A, P3191, P3193, P319C, P319E, P31A7, or P31A9, perform diagnosis for DTC P0AA0, P317A, P3191, P3193, P319C, P319E, P31A7, or P31A9.






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-I

With CONSULT
1.Turn power switch ON and wait at least 20 seconds.
2.Check DTC.
Is DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- GO TO 3.

3. PERFORM DTC CONFIRMATION PROCEDURE-II

With CONSULT
1.Turn power switch OFF.
2.Check that the charging status indicator is not illuminating, and wait at least 20 seconds.
3.Connect EVSE (with AC power input) and wait at least 20 seconds.
4.Check DTC.
Is DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK SELF-DIAGNOSTIC RESULT IN VCM

With CONSULT
Perform self-diagnosis of VCM.
Is DTC detected other than P3178?
YES- Check the DTC.
NO- GO TO 2.

2. CHECK SELF-DIAGNOSTIC RESULT IN TRACTION MOTOR INVERTER

With CONSULT
Check self-diagnostic result in "MOTOR".
Are any DTC detected?
YES- Check the DTC.
NO- GO TO 3.

3. CHECK SELF-DIAGNOSTIC RESULT IN LI-ION BATTERY CONTROLLER

With CONSULT
Check self-diagnostic result in "HV BAT".
Are any DTC detected?
YES- Check the DTC.
NO- Check high voltage harness connector installation condition of Li-ion battery and traction motor inverter.