Code Enable Criteria

• Engine speed is 562-5500 RPM.
• ECT is greater than 20°F (-7°C). If ECT is less than 20°F (-7°C), PCM will wait until ECT is greater than 68°F (20°C).
• Ignition voltage is 8-18 volts.
• Fuel level is greater than one gallon (3.8L).
• Crank Learn must be YES. If Crank Learn is NO, engine run time must be greater than 20 seconds to enable misfire.
• No 5-volt reference, CMP, CKP, fuel trim, IAC valve, IAT, MAP, TP or vehicle speed DTCs are set.

DTC sets when specific or random cylinder misfires have been detected after a series of 200 revolution tests.