# 2008 Ford Ranger - Electronics are protesting

**URL:** <https://community.cartalk.com/t/2008-ford-ranger-electronics-are-protesting/200789>\
**Category:** Maintenance/Repairs\
**Tags:** ford\
**Created:** [June 26, 2025, 2:32pm UTC](https://community.cartalk.com/t/2008-ford-ranger-electronics-are-protesting/200789 "2025-06-26T14:32:07Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![keith06](https://avatars.discourse-cdn.com/v4/letter/k/7c8e57/32.png) [@keith06](https://community.cartalk.com/u/keith06)\
**Post date:** [June 26, 2025, 2:32pm UTC](https://community.cartalk.com/t/2008-ford-ranger-electronics-are-protesting/200789/1 "2025-06-26T14:32:08Z")

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turned off passenger air bag light on, door open alert picture lit up on info dash screen, alarm sounds, and doom light comes on and stays on

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**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [June 30, 2025, 9:07pm UTC](https://community.cartalk.com/t/2008-ford-ranger-electronics-are-protesting/200789/4 "2025-06-30T21:07:16Z")

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Maybe one of your door ajar switches is bad?

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**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\
**Post date:** [June 30, 2025, 9:42pm UTC](https://community.cartalk.com/t/2008-ford-ranger-electronics-are-protesting/200789/6 "2025-06-30T21:42:18Z")

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Sounds to me like the car thinks the passenger door is open when it is not actually open. Door ajar switches were a common Ford failure point.

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**Author:** ![ledhed75](https://avatars.discourse-cdn.com/v4/letter/l/f6c823/32.png) [@ledhed75](https://community.cartalk.com/u/ledhed75)\
**Post date:** [July 1, 2025, 2:57pm UTC](https://community.cartalk.com/t/2008-ford-ranger-electronics-are-protesting/200789/7 "2025-07-01T14:57:33Z")

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How old is your 12V battery under the hood?

Sometimes you’ll see weird electrical stuff when the battery is about to die.

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**Author:** ![eddo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/eddo/32/2594_2.png) [@eddo](https://community.cartalk.com/u/eddo)\
**Post date:** [July 1, 2025, 9:32pm UTC](https://community.cartalk.com/t/2008-ford-ranger-electronics-are-protesting/200789/8 "2025-07-01T21:32:48Z")

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and along those lines, how clean and tight are the battery terminals?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [July 1, 2025, 9:51pm UTC](https://community.cartalk.com/t/2008-ford-ranger-electronics-are-protesting/200789/9 "2025-07-01T21:51:38Z")

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> **[5 Common Symptoms of a Failing Body Control Module (BCM) - Module Experts](https://moduleexperts.com/5-common-symptoms-failing-body-control-module-bcm/)**
>
> If your BCM malfunctions, you will notice a negative effect on the operation of your vehicle. Watch out for these symptoms.

Tester