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 PCM 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
Specification data are reference values.

On Board Diagnosis Logic:

DTC Confirmation Procedure

CAUTION: Always drive at safe speed.

NOTE: If "DIAGNOSTIC TROUBLE CODE 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 window defogger, 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. Let engine idle 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. 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. 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 10 seconds.
3. Restart engine and wait at least 30 seconds.
4. Let engine idle at least 50 seconds.




5. Maintain the following conditions for at least 30 seconds.
6. Select "MODE 7" with GST.
7. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

EC-IVC-01:

EC-IVC-01 - Connector View:

WIRING DIAGRAM




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

Diagnostic Procedure Step 1:

Diagnostic Procedure Step 2:

Diagnostic Procedure Step 3:

Diagnostic Procedure Step 4:

Diagnostic Procedure Step 5:

Diagnostic Procedure Step 6:

Diagnostic Procedure Step 7:

Diagnostic Procedure Step 8:

COMPONENT INSPECTION

INTAKE VALVE TIMING CONTROL SOLENOID VALVE
1. Check all 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.