Toyota: How to Reset Check Engine Light
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Is the Check Engine Light still appearing on your Toyota after fixing the problem causing the check engine light to illuminate? Follow the procedures below to reset the Toyota check engine light. This guide provides step-by-step instructions for resetting the Toyota check engine light and maintenance reminders.
At a Glance
- Clearing only turns the light off; it comes back if the fault remains.
- After tightening a loose gas cap, the light can go out on its own after several drive cycles.
- Disconnecting the battery also clears codes, but it erases freeze frame data and resets learned idle values.
- Readiness monitors reset after clearing, so drive for several days before an emissions test.
How to Reset Toyota Check Engine Light
This procedure should only be performed after a repair and once all the codes have been addressed.
What you need
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Procedure
Follow these steps to reset the Toyota check engine light.
- Park the vehicle and set the parking brake.
- Locate the OBD-II port under the dashboard and plug in your scanner.
- Turn on the ignition but don’t start the engine. Press it twice on vehicles with Start/Stop buttons without touching the brake pedal.
- Allow the scanner to turn on and connect to the car.
- Select OBD-II, then READ CODES. Make sure there are no current fault codes. If any codes appear on the scanner, they must have PAST or STORED status, not CURRENT.
- Go back and select CLEAR FAULT CODES. Press enter.
Check Engine means you have a problem that should be diagnosed and corrected as soon as possible. Do not clear the fault codes without fixing the underlying problem. Doing so could lead to more damage and a higher repair cost.
How to Reset the Toyota Maintenance Reminder
Maintenance Requires an oil and oil filter change, air filter change, fluid check, and other checks and changes depending on mileage. These are listed in your owner’s manual.
First, perform the recommended maintenance.
Here’s how to turn off the Maintenance Required light.
- Turn the key so the car is on.
- Make sure the odometer is displayed, not trip A or trip B.
- Turn the key so the car is off.
- Push and hold the reset button on the trip meter.
- Turn the key back on again, but not to the start position.
- The odometer will display dashes that disappear one at a time, and then a set of zeros will appear.
- Keep holding the button down until the zeros disappear and the odometer reading returns.
The appropriate maintenance should be done to ensure a long engine life.
Instructions for resetting Toyota check engine light work on all 1996 models, including Toyota Corolla, Camry, 4Runner, Rav4, Matrix, etc.
Frequently Asked Questions
Why does the Toyota check engine light come back after I clear the codes?
If the Toyota check engine light doesn’t turn off, it is a problem that has not been fixed yet. Reread the codes and fix any present codes.
Can I clear the codes without fixing the problem?
Clearing Toyota fault codes without fixing the problem is not recommended. Depending on the issue, the check engine light will come back immediately or within a few minutes.
Will the Toyota check engine light reset itself?
The check engine light will reset if the underlying problem is fixed. Check engine light won’t reset as soon as the problem is fixed. It may take up to four days of regular operation for the Toyota check engine light to reset on its own.
Can I reset the Toyota check engine light by disconnecting the battery?
It is possible to reset the Toyota check engine light by disconnecting the battery, but this method is not recommended. It does not fix the problem, and the light will turn back on.
Check these troubleshooting and repair guides for more help on your Toyota.
