Quick Test is performed by retrieving KOEO, KOER, and Continuous DTCs.

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

• 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 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.

• 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.