Ford 1996 Thunderbird Manual page 285

OBD II Drive Cycle
The following steps must be run in the order
shown. If steps 2 thru 9 are interrupted, repeat
the preceding step. Any safe driving mode is
acceptable between steps.
Always drive vehicle in safe manner according
to traffic conditions and obey all traffic laws.
The engine must be warmed up and at
operating temperature before proceeding with
the drive modes of the following OBD II Drive
Cycle.
1. Start the engine. Drive or idle (in neutral)
the vehicle for 4 minutes.
2. Idle the vehicle in drive for 40 seconds.
3. Accelerate the vehicle to 45 mph (70 km/h)
at 1/4 to 1/2 throttle for 10 seconds.
4. Drive the vehicle with a steady throttle at
45 mph (70 km/h) for 30 seconds.
5. Idle the vehicle in drive for 40 seconds.
6. Continue to drive the vehicle in city traffic at
speeds between 25 and 40 mph
(40-60 km/h) for 15 minutes. During the 15
minute drive cycle the following modes must
be achieved:
a. at least 5 stop and idle modes at 10
seconds each
b. acceleration from idles at 1/4 to 1/2
throttle position, and
c. choose 3 different speeds to do 1.5
minute steady state throttle drives.
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