Some states have vehicle emission inspection programs which include obd (on board diagnostics) checks. The obd system monitors the operation of the emission control system.
If the malfunction indicator lamp comes on
The obd system determines that a problem exists somewhere in the emission control system. Your vehicle may not pass the i/m test and may need to be repaired. Contact your toyota dealer to service the vehicle.
Your vehicle may not pass the i/m test in the following situations:
Also, depending on your driving habits, the readiness codes may not be completely set.
When the malfunction indicator lamp still remains on after several driving trips
The error code in the obd system will not be cleared unless the vehicle is driven 40 or more times.
If your vehicle does not pass the i/m test
Contact your toyota dealer to prepare the vehicle for re-testing.
Replacement
HINT:
COMPONENTS: see page 55-59
1. DISCHARGE REFRIGERANT FROM REFRIGERATION SYSTEM (SEE PAGE 55-17 )
SST 07110-58060 (07117-58080, 07117-58090, 07117-78050, 07117-88060,
07117-88070,
07117-88080)
2. REMOVE BATTERY
3. REMOVE RADIATOR GRILLE (SEE PAGE 76-2 )
4. DISCONNECT COOLER REFRIGERANT ...