Conditions For Running DTC

WARNING: This page is about a different car, the 2001 GMC Sonoma and 2001 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.

Engine coolant temperature is greater than 158°F (70°C).
Engine operating in closed-loop.
Engine running for more than one minute.
Battery voltage is 11.6-16.0 volts.
Fuel ethanol content is less than 15 percent.
Fuel level is more than 10 percent.