With Check Engine Light

NOTE: Correct results of the Quick Tests are dependent on the proper operation of related non-EEC components. It may be necessary to disconnect or disassemble harness connector assemblies to perform some of the inspections. Pin locations should be noted prior to disassembly.

1. Perform the following safety precautions to begin and perform vehicle tests:

- Turn the ignition switch "Off"

- APPLY parking brake

- Place gear select lever into PARK (A/T) or NEUTRAL (M/T)

- Block drive wheels

- Turn OFF all electrical loads (radio, lights, A/C-heater blower fans, etc).

2. Inspect the following for damage, leaks, cracks, blockage and proper routing:

- Engine vacuum hoses

- Air induction system

3. Inspect the following for proper connections, bent or broken pins, corrosion, loose wires and proper routing:

- EEC system wiring harness

- Powertrain Control Module (PCM), sensors, and actuators

4. Check:

- Engine coolant for proper level

- Transmission fluid level and quality

5. Make all necessary repairs prior to continuing with test preparation.

NOTE: If Malfunction Indicator Lamp (MIL) flashes continuously prior to equipment hookup, see STI - Self Test Input Test. STI - Self Test Input

6. Jumper EEC STI to engine ground.

7. See Key On Engine Off (KOEO) Self Test. Key On Engine Off (KOEO) Self Test