Reset emissions inspection and maintenance light Toyota 4Runner

Reset emissions inspection and maintenance light Toyota 4Runner. From year: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009.

How to reset emissions inspection and maintenance light Toyota 4Runner.

Your vehicle may not pass a state emission inspection if the malfunction indicator lamp remains on. Contact your Toyota dealer to check your vehicle’s emission control system and OBD (On−Board Diagnostics) system before taking your vehicle for the inspection. 

For details, see Emissions Inspection and Maintenance (I/M) programs below on this Section.

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. When the OBD system determines that a problem exists somewhere in the emission control system, the malfunction indicator lamp comes on. In this case, your vehicle may not pass the I/M test and need to be repaired. Contact your Toyota dealer to service the vehicle.

Even if the malfunction indicator lamp does not come on, your vehicle may not pass the I/M test as readiness codes have not been set in the OBD system.

Readiness codes are automatically set during ordinary driving. However, when the battery is disconnected or run down, the codes are erased. Also, depending on your driving habits, the codes may not be completely set.

Also, if the malfunction indicator lamp had come on recently due to temporary malfunction such as a loose fuel tank cap, your vehicle may not pass the I/M test.

The malfunction indicator lamp will go off after taking several driving trips, but the error code in the OBD system will not be cleared unless about 40 trips or more are taken.

If your vehicle does not pass the I/M test even the malfunction indicator lamp does not come on, contact your Toyota dealer to prepare the vehicle for re−testing.

All information how to check and reset emissions inspection and maintenance light is taken from Toyota 4Runner owners manual.


That it is the full procedure how to reset emissions inspection and maintenance light Toyota 4Runner fourth generation. If you like to reset any maintenance oil light after an oil change. Or reset check engine light, airbag light, inspection key or insp errors when maint reqd, for Toyota cars. Or any warning light for service reminder which appears on the display. Write in the search box the car name for which you want to find information, and find how to reset other service reminders by yourself.  

This is an information site where you can solve your car problems. Send us a comment if our procedures are correctly. If you would have anything to add, for us every opinion counts.

Click hear to see full procedure how do you reset the oil light indicator. How to reset the maintenance light and how do you reset service light for all Toyota vehicles.

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