Symptoms

Diagnostic Steps

1
Use an OBD-II scanner to read and clear any trouble codes.
2
Verify that all repairs or maintenance have been completed before resetting the light.
3
Disconnect the battery for a few minutes to reset the entire engine control module (optional method).
4
Connect the OBD-II scanner to the vehicle's OBD-II port, typically found under the dashboard near the driver's side.
5
Turn the ignition to the 'ON' position without starting the engine.
6
Follow the scanner's instructions to read the DTCs.
7
Once the codes are displayed, navigate to the option to 'Clear Codes' or 'Reset Light' on the scanner.
8
Confirm the action when prompted. This will reset the check engine light.
9
After clearing, perform a second scan to ensure no codes remain.
10
If codes still appear, further diagnostics are necessary to address underlying issues.
11
Turn off the ignition and disconnect the negative battery terminal using a socket wrench.
12
Wait for about 10 minutes to ensure all systems reset.
13
Reconnect the negative terminal and tighten securely.
14
Start the engine and observe if the check engine light remains off.
15
Test drive the vehicle to ensure no warning lights reappear.
16
Re-scan with the OBD-II scanner to confirm that no trouble codes are present.

After completing the repair, verify that the issue has been resolved:

To prevent this issue from occurring again:

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