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Toyota Corolla Owners Manual: Emission inspection and maintenance (I/M) programs

Toyota Corolla Owners Manual / Maintenance and care / Maintenance / Emission inspection and maintenance (I/M) programs

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:

● When the battery is disconnected or discharged Readiness codes that are set during ordinary driving are erased.

Also, depending on your driving habits, the readiness codes may not be completely set.

● When the fuel tank cap is loose The malfunction indicator lamp comes on indicating a temporary malfunction and your vehicle may not pass the I/M test.

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.

Vehicle exterior
CAUTION ■If the engine is running Turn the engine off and ensure that there is adequate ventilation before performing maintenance checks. ...

Do-it-yourself maintenance
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Other materials:

Turning on the high beam headlights
1 With the headlights on, push the lever away from you to turn on the high beams. Pull the lever toward you to the center position to turn the high beams off. 2 Pull the lever toward you and release it to flash the high beams once. You can flash the high beams with the headlights on or off. &# ...

When stopping the engine with the shift lever in a position other than P (vehicles with a continuously variable transmission)
If the engine is stopped with the shift lever in a position other than P, the engine switch will not be turned off but instead be turned to ACCESSORY mode. Perform the following procedure to turn the switch off: 1 Check that the parking brake is set. 2 Shift the shift lever to P. ► Vehi ...

Speed control main switch assy
Replacement 1. Disconnect battery negative terminal 2. Inspect place front wheels facing straight ahead 3. Remove horn button assy 4. Remove steering wheel assy sst 0995050013 (0995105010, 0995205010, 0995305020, 0995405021) 5. Remove speed control main switch assy Remove the 2 sc ...

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