Quick Test Check/Preparation

Quick Test is performed by retrieving Key On Engine Off (KOEO), Key On Engine Running (KOER), and Continuous DTCs.

NOTE: Before running Quick Test, always perform the necessary visual checks and safety precautions listed below.

Visual Check
- Inspect the air cleaner and inlet ducting.
- Check system wiring harness for proper connections, bent or broken pins, corrosion, loose wires, proper routing, etc..
- Check the Powertrain Control Module (PCM), sensors and actuators for physical damage.
- Check the engine coolant for proper level and mixture.
- Check the transmission fluid level and quality.
- Make all necessary repairs before continuing with Quick Test.

Vehicle Preparation
- Perform ALL safety steps required to start and run vehicle tests. Apply parking brake, place shift lever firmly into PARK position (NEUTRAL on manual transmission), block drive wheels, etc..
- Turn OFF ALL electrical loads-radios, lights, A/C, blower, fans, etc..
- Start engine and bring up to normal operating temperature before running Quick Test.