DTC Parameters

WARNING: This page is about a different car, the 2002 Saturn LW200, 2002 Saturn L200, and 2002 Saturn L100. However, it is still accessible from the selected car via links, so may be relevant.

Engine run time is greater than 60 seconds.
ECT is greater than 158°F (70°C).
Ignition voltage greater than 10V.
Air flow less than 25 g/s (M/T) or 40 g/s (A/T).
Fuel level greater than 10%.

DTC P0135 will set if HO2S1 heater current is less than 0.2A or greater than 1.5A.