P1564

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 ON and wait at least 10 seconds.
2.Press CANCEL switch for at least 10 seconds, then release it and wait at least 10 seconds.
3.Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 seconds.
4.Press SET/COAST switch for at least 10 seconds, then release it and wait at least 10 seconds.
5.Check self-diagnostic result.
Is DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK ASCD STEERING SWITCH CIRCUIT

With CONSULT
1.Turn power switch ON.
2.On the CONSULT screen, select "EV/HEV" - "DATA MONITOR" - "ASCD CANCEL SW", "RESUME/
ACC SW", and "ASCD SET SW".
3.Check each item indication under the following conditions.





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 2.

2. CHECK ASCD STEERING SWITCH GROUND CIRCUIT

1.Turn power switch OFF.
2.Disconnect VCM harness connector.
3.Disconnect combination switch harness connector.
4.Check the continuity between combination switch and VCM harness connector.





5.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace error-detected parts.

3. CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT

1.Check the continuity between combination switch and VCM harness connector.





2.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace error-detected parts.

4. CHECK ASCD STEERING SWITCH

Refer to "Component Inspection (ASCD STEERING SWITCH)" .
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Replace ASCD steering switch. Refer to "Exploded View" Exploded View.


Component Inspection (ASCD STEERING SWITCH)


1. CHECK ASCD STEERING SWITCH

1.Turn power switch OFF.
2.Disconnect combination switch (spiral cable) harness connector.
3.Check resistance between combination switch (spiral cable) harness connector terminals under the following conditions.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace ASCD steering switch. Refer to "Exploded View" Exploded View.