The Best 1999Jeep Wrangler Check Engine Light Come On And Off References. Resetting without scanner step 1: I went back to a more main road, and shifted out of 4lo into 2hi, then kept going.
The check engine light is designed to alert you when a fault is detected in your vehicle’s engine or emission control system. Make sure the engine is not running and the key is out of the ignition; Loose gas cap the gas cap helps create a seal to keep fuel fumes at bay.
