For USA and Canada

P100A, P100B VVEL SYSTEM

DTC Logic


DTC DETECTION LOGIC

NOTE:
- If DTC P100A or P100B is displayed with DTC P1090 or P1093, first perform the trouble diagnosis for DTC
P1090 or P1093. Refer to "DTC Logic" For USA and Canada.
- If DTC P100A or P100B is displayed with DTC P0101, first perform the trouble diagnosis for DTC P0101.
Refer to "DTC Logic" P0101.






DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

1.Turn ignition switch OFF and wait at least 10 seconds.
2.Turn ignition switch ON.
3.Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:


Before performing the following procedure, confirm that battery voltage is 10 V or more at idle.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

1.Start engine.
2.Depress the accelerator pedal rapidly half or more under no load conditions, and then release it.
3.Wait at idle for 5 seconds or more.
4.Repeat steps 2 to 3 for three times.
5.Check 1st trip DTC.
Is DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. VVEL ACTUATOR MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.Disconnect VVEL control module harness connector.
2.Disconnect VVEL actuator motor harness connector.
3.Check the continuity between VVEL control module harness connector and VVEL actuator motor harness connector.





4.Also check harness for short to ground and power.
Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 2.

2. DETECT MALFUNCTIONING PART

Check the following.
- Harness for open or short between VVEL actuator motor and VVEL control module
- Loose or poor connection for each connector and harness
- Repair open circuit, short to ground or short to power in harness or connectors.

3. CHECK VVEL ACTUATOR MOTOR

Refer to "Component Inspection (VVEL ACTUATOR MOTOR)" .
Is the inspection result normal?
YES- GO TO 5.
NO- GO TO 4.

4. REPLACE VVEL ACTUATOR MOTOR ASSEMBLY

Replace VVEL actuator motor assembly. Refer to "Removal and Installation" Removal and Installation.
- INSPECTION END

5. CHECK INTERMITTENT INCIDENT

Refer to "Intermittent Incident" Intermittent Incident.
Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace.

6. REPLACE VVEL CONTROL MODULE

Replace VVEL control module. Refer to "Removal and Installation" For USA and Canada.
- GO TO 7.

7. PERFORM DTC CONFIRMATION PROCEDURE

1.Turn ignition switch ON.
2.Erase 1st trip DTC.
3.Perform DTC Confirmation Procedure.
See "DTC Logic" .
Is the DTC P100A or P100B displayed again?
YES- GO TO 8.
NO- INSPECTION END

8. CHECK VVEL ACTUATOR HOUSING ASSEMBLY

Refer to "Component Inspection (VVEL ACTUATOR HOUSING ASSEMBLY)" .
Is the inspection result normal?
YES- GO TO 10.
NO- GO TO 9.

9. REPLACE VVEL ACTUATOR HOUSING ASSEMBLY

Replace VVEL actuator housing assembly. Refer to "Removal and Installation" Removal and Installation.
- INSPECTION END

10. CHECK VVEL LADDER ASSEMBLY

Refer to "Inspection" Inspection.
Is the inspection result normal?
YES- GO TO 12.
NO- GO TO 11.

11. REPLACE CYLINDER HEAD AND VVEL LADDER ASSEMBLY

Replace cylinder head and VVEL ladder assembly.
Refer to "Removal and Installation" Removal and Replacement (Cylinder head).
Refer to "Removal and Installation" Removal and Installation (VVEL ladder assembly)
- INSPECTION END

12. CHECK INTERMITTENT INCIDENT

Refer to "Intermittent Incident" Intermittent Incident.
- INSPECTION END


Component Inspection (VVEL ACTUATOR MOTOR)


1. CHECK VVEL ACTUATOR MOTOR

1.Turn ignition switch OFF.
2.Disconnect VVEL actuator motor harness connector.
3.Check resistance between VVEL actuator motor terminals as per the following.





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

2. REPLACE VVEL ACTUATOR MOTOR ASSEMBLY

Replace VVEL actuator motor assembly. Refer to "Removal and Installation" Removal and Installation.
- INSPECTION END


Component Inspection (VVEL ACTUATOR HOUSING ASSEMBLY)


1. CHECK VVEL ACTUATOR HOUSING ASSEMBLY

1.Turn ignition switch OFF.
2.Remove VVEL actuator housing assembly. Refer to "Removal and Installation" Removal and Installation.
3.Turn the ball screw shaft to check that it works smoothly.
Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 2.

2. REPLACE VVEL ACTUATOR HOUSING ASSEMBLY

Replace VVEL actuator housing assembly. Refer to "Removal and Installation" Removal and Installation.
- INSPECTION END