P1110

SYSTEM DESCRIPTION
The intake valve timing control system is utilized to control intake valve opening and closing timing.

Engine coolant temperature signals, engine speed, amount of intake air, vehicle speed and throttle position are used to determine intake valve timing. The intake camshaft sprocket position is regulated by oil pressure controlled by the intake valve timing control.

When ECM sends ON signal to intake valve timing control solenoid valve, oil pressure is transmitted to camshaft sprocket. Then, intake side camshaft is advanced.

Operation:

CONSULT-II Reference Value In Data Monitor Mode:

On Board Diagnosis Logic:

DTC Confirmation Procedure

CAUTION: Always drive at safe speed.

NOTE: If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch "OFF" and wait at least 10 seconds before conducting the next test.

TESTING CONDITION: Do not apply electrical load (e.g. cooling fan, rear defogger, headlamp, etc.).

With CONSULT-II
1. Warm up engine to normal operating temperature.
2. Turn ignition switch "OFF" and wait at least 10 seconds.




3. Turn ignition switch "ON" and select "DATA MONITOR" mode with CONSULT-II.
4. Restart engine and wait at least 30 seconds.
5. Keep engine speed between idle and 1,000 rpm for at least 50 seconds. (Test is completed when "INT/V SOL - B1" in "DATA MONITOR" with CONSULT-II remains "OFF". If indication is "ON", repeat step 6.
6. Shift selector lever to "2nd" position.




7. Quickly raise engine speed to more than 2,000 rpm and maintain the following conditions for at least 30 seconds. (Test is completed when "INT/V SOL - B1" in "DATA MONITOR" with CONSULT-II remains "ON". If indication is "OFF", repeat step 7.
8. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

With GST
1. Warm up engine to normal operating temperature.
2. Turn ignition switch "OFF" and wait at least 5 seconds.
3. Restart engine and wait at least 30 second.
4. Keep engine speed between idle and 1,000 rpm for at least 50 seconds.
5. Shift selector lever to "2nd" position.
6. Quickly raise engine speed to more than 2,000 rpm and keep it there for at least 30 seconds.
- Driving location: Driving vehicle uphill (increased engine load) will help maintain the driving conditions required for this test.
7. Select "MODE 7" with GST.
8. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

EC-IVC/V-01:

EC-IVC/V-01 - Connector View:

WIRING DIAGRAM

PCM Terminals And Reference Value:

PCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND GROUND.

CAUTION: DO NOT USE PCM GROUND TERMINALS WHEN MEASURING INPUT/OUTPUT VOLTAGE. DOING SO MAY RESULT IN DAMAGE TO THE PCM'S TRANSISTOR. USE A GROUND OTHER THAN PCM TERMINALS, SUCH AS THE GROUND.

Diagnostic Procedure Steps 1 - 3:

Diagnostic Procedure Steps 4 - 8:

DIAGNOSTIC PROCEDURE

COMPONENT INSPECTION

INTAKE VALVE TIMING CONTROL SOLENOID VALVE
1. Check oil passage visually for any metal debris.




2. Supply intake valve timing control solenoid valve terminals with battery voltage.
3. Make sure that inside plunger protrudes.
If NG, replace intake valve timing control solenoid valve.