P0A06

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

1.Set the vehicle to READY and wait at least 5 seconds.
2.Check DTC.
Is DTC detected?
YES- Proceed to .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK ELECTRIC WATER PUMP OPERATION

With CONSULT
1.Turn ignition switch ON.
2.Select "ACTIVE TEST" mode of "EV/HEV" using CONSULT.
3.Perform "WATER PUMP".
4.With operating the test item, touch in the main body of pump and check the operation vibration of the electric water pump.
ON: Electric water pump operate


OFF: Electric water pump stop
Without CONSULT
1.Set the vehicle to READY.
2.Touch in the main body of pump and check the operation vibration of the electric water pump.
Is the inspection result normal?
YES- Perform Intermittent Incident.
NO- GO TO 2.

2. CHECK ELECTRIC WATER PUMP POWER SUPPLY-1

1.Turn ignition switch OFF.
2.Disconnect electric water pump harness connector.
3.Check the voltage between electric water pump harness connector terminals.





Is the inspection result normal?
YES- GO TO 5.
NO- GO TO 3.

3. CHECK ELECTRIC WATER PUMP POWER SUPPLY-2

Check the voltage between electric water pump harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Perform the trouble diagnosis for power supply circuit.

4. CHECK ELECTRIC WATER PUMP GROUND CIRCUIT

Check the continuity between electric water pump harness connector and ground.





Is the inspection result normal?
YES- Per form Intermittent Incident.
NO- Repair or replace error-detected parts.

5. CHECK ELECTRIC WATER PUMP SIGNAL CIRCUIT

1.Disconnect HPCM harness connector.
2.Check the continuity between HPCM harness connector and electric water pump harness connector.





3.Also check harness for short to ground and to power.
YES- Replace electric water pump. Removal and Installation.
NO- Repair or replace error-detected parts.