# Jeep Compass 2019 (check engine light)

**URL:** <https://community.cartalk.com/t/jeep-compass-2019-check-engine-light/187661>\
**Category:** Maintenance/Repairs\
**Tags:** compass, jeep\
**Created:** [November 29, 2022, 11:30pm UTC](https://community.cartalk.com/t/jeep-compass-2019-check-engine-light/187661 "2022-11-29T23:30:39Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Kpettigrew\_183078](https://avatars.discourse-cdn.com/v4/letter/k/958977/32.png) [@Kpettigrew\_183078](https://community.cartalk.com/u/Kpettigrew_183078)\
**Post date:** [November 29, 2022, 11:30pm UTC](https://community.cartalk.com/t/jeep-compass-2019-check-engine-light/187661/1 "2022-11-29T23:30:39Z")

</div>

Check engine light is on dashboard. I coded it and it came back as a P103B (generic). Any help on what it could be? Alternator is new, battery is new, wires to starter are new and fuses are fine too.

---

<div class="post-metadata">

**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [November 29, 2022, 11:39pm UTC](https://community.cartalk.com/t/jeep-compass-2019-check-engine-light/187661/2 "2022-11-29T23:39:32Z")

</div>

3 year old Jeep… Maybe still under warranty?

If not, read this;

> **[Code P103B Jeep: Cylinder 3 Oil Supply Solenoid Valve Driver Open Circuit](https://www.autocodes.com/p103b_jeep.html)**
>
> Multi-Air is an electronically controlled variable intake valve phase and lift system. Unlike conventional intake valve phase and lift system which

That is what the code means.

It is a “Fiat Thing”… NO one understands!