Code Enable Criteria

Conditions for running DTC:

• DTCs P0112, P0113, P0121, P0122, P0123, P0336, P0341, P0506 or P0507 is not set.
• Engine speed is 1000-5000 RPM.
• Engine has been running for a minimum of 30 seconds.
• Throttle angle is greater than 15 percent.
• Engine load is greater than 40 percent.
• Engine coolant temperature is greater than 153°F (60°C).
• Maximum spark retard is less than 15 degrees.
• System voltage is greater than 9 volts.

Conditions for setting DTC:

• PCM detects a knock sensor signal voltage within the calculated average voltage range for at least 10 seconds.
• Engine run time is greater than 30 seconds.