P0A8E

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.Set the vehicle to READY and wait at least 30 seconds.
2.Check self-diagnostic result.
Is DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK 12V BATTERY

Check that the correct 12V battery is installed.
Is the inspection result normal?
YES- GO TO 2.
NO- Replace 12V battery with a correct one.

2. DC/DC CONVERTER POWER VOLTAGE VARIABLE CONTROL SIGNAL

With CONSULT
1.On the CONSULT screen, select "EV/HEV" - "DATA MONITOR" - "DC/DC CONV REQ VOLT".
2.Check that the value of "DC/DC CONV REQ VOLT" is less than 16 V.
Is the inspection result normal?
YES- GO TO 3.
NO- Replace VCM. Refer to "Removal and Installation" Removal And Installation.

3. CHECK DC/DC CONVERTER POWER VOLTAGE VARIABLE CONTROL SIGNAL CIRCUIT

1.Turn power switch OFF.
2.Disconnect VCM harness connector and DC/DC junction box harness connector.
3.Check the continuity between VCM harness connector and DC/DC junction box harness connector.





4.Also check harness for short to power.
Is the inspection result normal?
YES- Replace DC/DC junction box. Refer to "Removal and Installation" Removal And Installation.
NO- Repair or replace error-detected parts.