DTC 0112

COMPONENT DESCRIPTION
The swirl control valve control vacuum check switch detects vacuum signal to the swirl control valve, and sends "ON" or "OFF" signal to the ECM.
When vacuum is supplied to the valve, the swirl control valve control vacuum check switch sends "OFF" signal to the ECM. The swirl control valve control vacuum check switch is not used to control the engine system, it is used for on board diagnosis.




CONSULT REFERENCE VALVE IN DATA MONITOR MODE
Specification data are reference values.




ECM TERMINALS AND REFERENCE VALUE
Specification data are reference values and are measured between each terminal and (25) (ECM ground).




ON BOARD DIAGNOSIS LOGIC




DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE

NOTE: If "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" has been previously conducted, always turn ignitor switch "OFF" and wait at least 10 seconds before conduction the next test.

TESTING CONDITION: Always perform the test at a temperature above 5 °C (41 °F).

With Consult
1. Turn ignition switch "OFF" and wait at least 10 seconds.
2. Turn ignition switch "ON".
3. Select "DATA MONITOR" mode with CONSULT and wait at least 5 seconds.
If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE".

OR

With Generic Scan Tools
1. Turn ignition switch "OFF" and wait at least 10 seconds.
2. Turn ignition switch "ON" and wait at least 5 seconds.
3. Select "MODE 3" with GST.
If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE".

OR

Without Scan Tools
1. Turn ignition switch "OFF" and wait at least 10 seconds.
2. Turn ignition switch "ON" and wait at least 5 seconds.
3. Turn ignition switch "OFF", wait at least 10 seconds and then turn "ON".
4. Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECM.
If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE".







WIRING DIAGRAM




DIAGNOSTIC PROCEDURE




COMPONENT INSPECTION

Swirl control valve control vacuum check switch
1. Disconnect swirl control valve control vacuum check switch harness connector.
2. Use vacuum pump to apply vacuum to swirl control valve control vacuum check switch as shown in image.
3. Start engine.




4. Check voltage between terminal (1) and engine ground with CONSULT or tester.
5. If NG, replace swirl control valve control vacuum check switch.

Swirl control valve control solenoid valve
Check solenoid valve air passage continuity.







With Consult
Turn ignition switch "ON" and perform "SWIRL CONT SOL/ V" in "ACTIVE TEST" mode.

OR







Without Consult
If NG or operation takes more than 1 second, replace solenoid valve.