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2017 jeep wrangler engine malfunction warning light came on.

Customer Question
Good morning, 2017...

Good morning, 2017 jeep wrangler engine malfunction warning light came on

Mechanic's Assistant: Do you have the trouble code? Do you have a code reader or scan tool?

No, i was just reading that i might get the code by turning key from off to on to off to on to off to on and code would be at odometer window but havent tried it yet

Mechanic's Assistant: Not a problem. You can work with the Jeep Mechanic to figure that out. Are you fixing your Wrangler yourself? What have you tried so far?

I will go try getting the code now

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

The code is P0456

Submitted: 6 months ago.Category: Jeep
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Answered in 3 hours by:
12/31/2017
Jeep Mechanic: Mark, 22 Year Factory trained technician replied 6 months ago
Mark
Mark, 22 Year Factory trained technician
Category: Jeep
Satisfied Customers: 11,593
Experience: Jeep factory training........25 years in the industry.
Verified

Welcome to Just Answer my name is***** fault code you are getting is for a small leak in the evaporative emission circuit of your Jeep.

Quite often the P0456 code can be set due to a loose fitting gas cap. If you haven't already, I would make sure that the cap is properly tightened and that it clicks a few times after tightening it.

If the cap is fine, the there will need to be some diagnostics run by your dealer under warranty to locate the source of the leak.

I hope that helps answer your question but if you need anything further please let me know.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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