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Subcompact crossover SUV First shown to the public in 2014 at the Geneva Motor Show It is the smallest vehicle currently marketed by Jeep

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Heater System Coolant Leak Affecting Electrical Systems – Jeep Renegad

I was experiencing an issue where the coolant level kept dropping without any visible external leaks. Eventually, I identified the cause as a failure in the heater system behind the dashboard. There was no coolant leaking inside the cabin; instead, the coolant appeared to be accumulating or evaporating behind the dashboard area.

After this issue, several warning lights started appearing, including the airbag, electronic braking system, and seatbelt indicators. I suspect these warnings are related to coolant or moisture affecting electrical components behind the dashboard.

I would like to know how and where I can safely clean the affected electronic parts, or which components should be inspected first.

Vehicle details:

2017 Jeep Renegade Trailhawk 2.4L

Any guidance or experience with a similar issue would be appreciated.

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Having that many items presenting would indicate water likely got onto an ECU Those are pretty well sealed, so the first thing I would go for is cleaning up multi pin connectors on the ECU. I doen't have familiarity with Jeep, so that is the best I can give you.

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Thank you very much, Bill, for your response. To begin cleaning the pins, I’m not sure where these components are located. Could you please advise on their exact locations?

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Mohammed Hitari will be eternally grateful.
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