Description of activations Using VCT2000

HINT: Activate components and/or functions by clicking the VCT2000 symbol.

NOTE:

Components cannot be activated when the engine is running.

Many of these activations will cause the fuel pump (FP) to start. This is because the system relay is activated to supply the components with power.

No.	Component	Function
1	Fuel pump / system relay.	The relay is activated for approximately 1 second. The system relay "clicks". The fuel pump (FP) "buzzes". HINT: In order to hear / feel when the fuel pump (FP) is running, expose the top of the pump by removing the protective cover in the passenger compartment. Bi-Fuel: The relay only functions as a system relay and does not activate the fuel pump (FP).
2	Fuel pump (FP), Bi-fuel	Bi-fuel cars only: The relay is activated for 1 second. The system relay "clicks". The fuel pump (FP) "buzzes". HINT: In order to hear / feel when the fuel pump (FP) is running, expose the top of the pump by removing the protective cover in the passenger compartment.
3	the canister purge (CP) valve.	The canister purge (CP) valve is activated once for 1 second. The valve clicks.
4	Engine cooling fan (FC), low-speed.	Engine cooling fan (FC) low-speed, the fan runs for 3 seconds. The fan can be heard clearly.
5	Engine cooling fan (FC), high-speed (only on cars with air conditioning (A/C)).	Engine cooling fan (FC) high-speed, the fan runs for 3 seconds. The fan can be heard clearly.
6	Air conditioning (A/C) relay.	Air conditioning (A/C) relay, the relay is activated once for 1 second. A clicking noise is heard from the compressor clutch.
7	Injector 1.	The injector clicks for a total of 10 seconds. A ticking noise is heard from the injector.
8	Injector 2.	The injector clicks for a total of 10 seconds. A ticking noise is heard from the injector.
9	Injector 3.	The injector clicks for a total of 10 seconds. A ticking noise is heard from the injector.
10	injector 4.	The injector clicks for a total of 10 seconds. A ticking noise is heard from the injector.
11	Idle air control (IAC) valve.	The idle air control (IAC) valve is activated and deactivated at a frequency of 0.2 Hz. A buzzing noise is heard from the valve.
12	Malfunction indicator lamp (MIL).	The malfunction indicator lamp (MIL) goes out for 1 second then lights up again.
13	Front heated oxygen sensor (HO2S).	Front heated oxygen sensor (HO2S) preheating, the heating is on for 1 second. Connect a voltmeter between connector terminal #1 (control module side) and ground. Check the signal.
14	Rear heated oxygen sensor (HO2S).	Rear heated oxygen sensor (HO2S) preheating, the heating is on for 1 second. Connect a voltmeter between connector terminal #1 (control module side) and ground. Check the signal.
15	Injector supplementary air valve.	The supplementary air valve "clicks" for one second (model year -00 only).