* Position the central button to the STAR tester in the up position. * Deactivate the self-test as soon as DTCs start to display as follows: However, normalcy will resume when the adaptive values are relearned. Disconnecting the battery’s ground cable to clear DTCs will result in the rough operation of the vehicle for the first few miles. You can reset the PCM by disconnecting the ground cable to the battery for five minutes or using the NGS (New Generation Star) tester. Drive for 75+ miles, then run the self-test once more using a jumper cable or paper clip to verify if the trouble codes were erased. You don’t have to jerk off the battery’s negative terminal as the process will reset the ECU. The easiest and most common method to clear DTCs is pulling the ECU fuse for 15 to 30 seconds. Pulling the ECU fuse for 15 to 30 seconds
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