Operating Condition
- Enter the maintenance mode, than start the engine. Hold the engine speed [Engine Speed] at 3000 RPM without load (in P or N) until the radiator fan comes on.
- Drive the vehicle at a speed between 45 - 75 mph (73 - 120 km/h) for at least 5 minutes, to warm up the TWC.
- Drive at a steady speed between 55 - 75 mph (89 - 120 km/h) for at least 10 seconds.
- Decelerate with the throttle valve fully closed.
- Repeat driving pattern steps 3 through 4, five times.
- Drive at steady speed 25 mph (40 km/h) or more for at least 68 seconds.
- After disconnecting the 12 volt battery, extend Driving Pattern step 6 to 4 minutes or longer.
- Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.
[ ]: HDS Parameter