Code Enable Criteria

• Sum of misfire counts are based on engine speed and load.
• Engine running for at least 5 seconds.
• Engine speed is 469-6400 RPM.
• ECT is 20-254°F (-7°C-123°C).
• Ignition voltage is 9-17 volts.
• Fuel level more than 10 percent.
• No CMP, CKP, ECT, fuel trim, IAT, idle speed, knock, MAP, O2S1, TCC, TP, VSS, P0601, P1336 or P1621 DTCs are set.

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