Code Enable Criteria

Conditions for running DTC:

• ECT is at least 140°F (40°C).
• Engine has been running for at least 180 seconds.
• Engine speed is at least 1400 RPM.
• Vehicle speed is 25-62 MPH.
• Throttle valve is open.

Conditions for setting DTC; HO2S 1 output does not indicate rich for more than 1.5 minutes.