Output Diagnostic Test Mode (Circuit Actuation Tests)

DESCRIPTION

The circuit actuation test mode checks for the proper operation of output circuits and devices that the engine controller cannot test. The engine controller attempts to actuate these outputs and allows an observer to verify the operation of the component. Most of the checks in this mode provide an audible or visual indication of component operation. Unless an intermittent condition exists, if a device functions properly during its test, it can be assumed that the component and its related circuit are functioning properly. To enter circuit actuation mode, access the "Actuators" screen on the scan tool.

THE FOLLOWING CAN BE TESTED IN THIS MODE:

- Air conditioning clutch relay
- All solenoids/relays
- Alternator field
- Automatic Idle Speed (AIS) motor open/close
- Auto shutdown (ASD) relay
- ASD fuel system test
- Fuel injector #1
- Fuel injector #2
- Fuel injector #3
- Fuel injector #4
- Fuel Injector #5 (if equipped)
- Fuel Injector #6 (if equipped)
- Fuel Injector #7 (if equipped)
- Fuel Injector #8 (if equipped)
- Ignition coil
- Stop All Tests
- Tachometer Output
- Up-shift indicator lamp