Information about your vehicle's emission control
system is on the Vehicle Emission Control
Information decal located on or near the engine.
This decal identifies engine displacement and gives
some tune-up specifications.
Readiness for Inspection/Maintenance
Testing
In some localities it may become a legal requirement
to pass an Inspection/Maintenance (I/M) test of the
On-Board Diagnostic (OBD) II system. If the
vehicle's powertrain system or its battery has just
been serviced, the OBD II system is reset to a not
ready for I/M testing condition. To prepare for I/M
testing, the law specifies a "need for additional
mixed city and highway driving to complete the
check" of the OBD II system. As soon as all of the
OBD II system checks are successfully completed,
the OBD II system is set to the ready condition. The
amount of driving required to reach the ready
condition varies with individual driving patterns. To
complete this requirement in theminimum amount of time, refer to the OBD II Drive
Cycle defined below. If the vehicle owner cannot or
does not want to do the additional driving required by
law, a service center can perform this drive cycle as it
would any other type of repair work.
OBD II Drive Cycle
The following steps must be run in the order shown.
If steps 2 through 9 are interrupted, repeat the
preceeding step. Any safe driving mode is acceptable
between steps.
Always drive vehicle in a safe manner according to
traffic conditions and obey all traffic laws.
1. Start engine and drive until engine has reached
normal operating temperature.
2. Idle vehicle for at least 80 seconds, then
accelerate at part throttle to near 45 mph (72 km/h).
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