Check Engine Light On Jeep Wrangler

Push the key in and turn it to off and then to on three times leaving it in the on position.

Check engine light on jeep wrangler.

It could be that the gas cap is not tightened enough or you have a faulty mass airflow sensor. Items you will need adjustable wrench ignition key. Be sure to keep it. Connect scan tool to the 16 pin data link connector dlc located near the steering column.

Insert key into the ignition. A failing oxygen sensor also known as an o2 sensor is one of the most common reasons for that jeep check engine light to come on. Try as we may to keep our jeep vehicles running in perfect condition odds are the vehicle will throw a code and light up the check engine symbol at some point along the way. The check engine light is an indicator that can only be triggered if there is an error with one or more sensors or parts of the jeep.

The check engine light is part of the onboard diagnostics system and displays in a few different ways. One of the most typically misunderstood lights or indicators in your 2017 jeep wrangler is the check engine light. Turn to on position without starting the jeep. When your jeep throws up a check engine light it means something is amiss and it has detected some mechanical problem with a component or an electrical signal error in the jeeps system.

Once those steps are completed all lights on the dash should. Basically what this means is your jeep s computer has detected some sort of problem with a part or system on the vehicle and is letting you know via the malfunction indicator light check engine light. The connector may have a removable cover. And the tricky thing with the o2 sensor is that the car will continue to drive well so you might want to dismiss the light.

When retrieving jeep check engine light codes with an obd ii scan tool proceed as follows. But an o2 sensor code will surely show up in a diagnostic test. Just complete the following steps.