Code Enable Criteria

Following conditions must be met for DTC diagnostic test to run:

A/D Test

• Engine speed is equal to or more than 2500 RPM.
• A/D voltage is less than or equal to .0781 volts.
• Engine coolant temperature is 140°F (60°C) or more.
• Engine vacuum is less than 35 kPa.

  Above conditions are met for 64 test failures within 80 test samples (125 msec/test).

Gain Test

• Engine speed is 2500 RPM or more.
• Gain is equal to or more than 23.875 decibels.