B2880

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT
1.Perform Quick charging at least 15 seconds.
2.Turn power switch ON.
3.Check "SELF-DIAG RESULTS" of "CHARGER".
Is DTC detected?
YES (TYPE A)-Proceed to "TYPE A : Diagnosis Procedure" .
YES (TYPE B)-Proceed to "TYPE B : Diagnosis Procedure" .
NO- INSPECTION END


TYPE A : Diagnosis Procedure


1. CHECK QUICK CHARGE RELAY OPERATION

With CONSULT
1.Turn power switch ON.
2.On the CONSULT screen, select "CHARGER" - "ACTIVE TEST" - "Q/CHG RELAY +".
3.Switch the quick charge relay between ON and OFF to check operating noise.
NOTE:
If operating noise is hard to hear, use a sound scope to check noise.
4.Check "Q/CHG RELAY -" in the same manner.
Can operating sound be heard?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- GO TO 2.

2. CHECK F/S CHG RELAY OPERATION

With CONSULT
1.On the CONSULT screen, select "EV/HEV" - "ACTIVE TEST" - "F/S CHG RELAY".
2.Switch the F/S CHG relay between ON and OFF to check operating noise of the F/S CHG relay.
Can operating sound be heard?
YES- GO TO 3.
NO- Check F/S CHG relay system. Refer to "Diagnosis Procedure" F/S CHG Relay.
I

3. CHECK QUICK CHARGE RELAY DRIVE CIRCUIT-

With CONSULT
1.Turn power switch OFF.
2.Disconnect on-board charger harness connector.
3.Turn power switch ON.
4.On the CONSULT screen, select "EV/HEV" - "ACTIVE TEST" - "F/S CHG RELAY".
5.Turn ON the F/S CHG relay.
6.Check the voltage between on-board charger harness connector and ground.





Is the inspection result normal?
YES- GO TO 8.
NO- GO TO 4.

4. CHECK QUICK CHARGE RELAY POWER SUPPLY

With CONSULT
1.Turn power switch OFF.
2.Disconnect DC/DC junction box harness connector.
3.Turn power switch ON.
4.On the CONSULT screen, select "EV/HEV" - "ACTIVE TEST" - "F/S CHG RELAY".
5.Turn ON the F/S CHG relay.
6.Check the voltage between DC/DC junction box harness connector and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- GO TO 5.

5. CHECK QUICK CHARGE RELAY POWER SUPPLY CIRCUIT

1.Turn power switch OFF.
2.Remove F/S CHG relay.
3.Check the continuity between F/S CHG relay harness connector and DC/DC junction box harness connector.





4.Also check harness for short to ground.
Is the inspection result normal?
YES- Check F/S CHG relay system. Refer to "Diagnosis Procedure" F/S CHG Relay.
NO- Repair or replace error-detected parts.

6. CHECK QUICK CHARGE RELAY

1.Turn power switch OFF.
2.Check the resistance between DC/DC junction box harness connector terminals.





Is the inspection result normal?
YES- GO TO 7.
NO- Replace DC/DC junction box. Refer to "Removal and Installation" Removal And Installation.

7. CHECK QUICK CHARGE RELAY DRIVE CIRCUIT-II

Check the continuity between DC/DC junction box harness connector and on-board charger harness connector.





Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair or replace error-detected parts.

8. CHECK ON-BOARD CHARGER GROUND CIRCUIT

Check the continuity between on-board charger harness connector and ground.





Is the inspection result normal?
YES- GO TO 9.
NO- Repair or replace error-detected parts.

9. CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
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.


TYPE B : Diagnosis Procedure


1. CHECK QUICK CHARGE RELAY DRIVE VOLTAGE

1.Turn power switch OFF.
2.Disconnect on-board charger harness connector.
3.Turn power switch ON.
4.Check the voltage between on-board charger harness connector and ground.





Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO - GO TO 2.
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2. CHECK QUICK CHARGE RELAY DRIVE CIRCUIT-

1.Turn power switch OFF.
2.Disconnect DC/DC junction box harness connector.
3.Turn power switch ON.
4.Check the voltage between DC/DC junction box harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 3.

3. CHECK QUICK CHARGE RELAY POWER SUPPLY

1.Turn power switch OFF.
2.Remove F/S CHG relay.
3.Turn power switch ON.
4.Check the voltage between DC/DC junction box harness connector and ground.





Is the inspection result normal?
YES- Check F/S CHG relay system. Refer to "Diagnosis Procedure" F/S CHG Relay.
NO- There may be a short circuit in the location between power and an area between the F/S CHG
relay harness connector and the DC/DC junction box harness connector. Check harness for short circuit.
II

4. CHECK QUICK CHARGE RELAY DRIVE CIRCUIT-

Check the voltage between on-board charger harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO - There may be a short circuit in the location between power and an area between the DC/DC junction box harness connector and the on-board charger harness connector. Check harness for short circuit.

5. CHECK DC/DC JUNCTION BOX TERMINAL VOLTAGE

Check the voltage between DC/DC junction box connector and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- Replace DC/DC junction box. Refer to "Removal and Installation" Removal And Installation.

6. CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
Is the inspection result normal?
YES- Replace on-board charger. Refer to "Removal and Installation" Removal And Installation.
NO- Repair or replace error-detected parts.