1. Catalytic Converter Monitor (P042O)

TEST CONDITIONS/PROCEDURE

1. All of the following conditions should be satisfied when the drive test is carried out.
a. Outside air temperature: -10° C (14° F) or more
b. A/T condition:
- Selector lever position: D range
- Overdrive switch: ON
- Power/economy changeover switch: Power
c. A/C switch: OFF

2. Carry out one trip monitoring according to the following drive pattern (from starting of the engine until ignition is turned off). (Takes approximately 20 minutes.)

a. Start the engine and quickly accelerate to a speed of 72 km/h (45 mph) or more.
b. Monitor preparation period: drive for 300 seconds or more while maintaining the vehicle speed at between 72 - 97 km/h (45 - 60 mph). Braking (lasting several seconds) can be carried out during this period.
c. Decelerate until the vehicle speed is between 56 - 64 km/h (35 - 40 mph).
d. Monitoring period: drive for 90 seconds or more on a level surface while maintaining the throttle opening angle at a constant angle (keeping throttle variations as small as absolutely possible) and the vehicle speed at between 56 - 64 km/h (35 - 40 mph).
e. Fully close the throttle to make the vehicle decelerate. (Braking is allowed at this time.) After the vehicle has been decelerating continuously for 10 seconds, quickly accelerate back to a speed of between 56 - 64 km/h (35 - 40 mph). Repeat steps *4 and *5 six times. (The procedure in steps *4 and *5 should be completed a total of six times.)
f. Decelerate to a stop. After the vehicle has stopped, turn the ignition switch to OFF.





Drive cycle pattern

CAUTION: The shaded areas in the graph indicate times when the vehicle speed should not go outside of the specified range.