# 2002 galant won't operate when the lights are on **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [February 17, 2017, 7:37pm UTC](https://community.cartalk.com/t/2002-galant-wont-operate-when-the-lights-are-on/100084 "2017-02-17T19:37:58Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![mellowy64](https://avatars.discourse-cdn.com/v4/letter/m/bb73d2/32.png) [@mellowy64](https://community.cartalk.com/u/mellowy64)\ **Post date:** [February 17, 2017, 7:37pm UTC](https://community.cartalk.com/t/2002-galant-wont-operate-when-the-lights-are-on/100084/1 "2017-02-17T19:37:58Z")
2002 Mitsubishi Galant cruise control will not operate when headlights are on ---
**Author:** ![mysonismysun4](https://avatars.discourse-cdn.com/v4/letter/m/8797f3/32.png) [@mysonismysun4](https://community.cartalk.com/u/mysonismysun4)\ **Post date:** [February 18, 2017, 11:19am UTC](https://community.cartalk.com/t/2002-galant-wont-operate-when-the-lights-are-on/100084/2 "2017-02-18T11:19:45Z")
Are your headlights and cruise control both on the same lever on your steering column? If so, you most likely need a new multifunction switch. You could try spraying the switch with electronics cleaner, work the switch, and spray again. ---
**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\ **Post date:** [February 18, 2017, 11:50pm UTC](https://community.cartalk.com/t/2002-galant-wont-operate-when-the-lights-are-on/100084/3 "2017-02-18T23:50:44Z")
I would start by cleaning the battery to chassis ground connections. A bad chassis ground connection could cause an excessive voltage drop to occur due to high current needed by the lights. If turning on the blower to high causes the same trouble then a bad ground connection is really suspect. ---
**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:** [February 18, 2017, 11:58pm UTC](https://community.cartalk.com/t/2002-galant-wont-operate-when-the-lights-are-on/100084/4 "2017-02-18T23:58:24Z")
Check and see if one of the rear license plate lights is burned out. Tester ---
**Author:** ![oldtimer-11](https://avatars.discourse-cdn.com/v4/letter/o/e79b87/32.png) [@oldtimer-11](https://community.cartalk.com/u/oldtimer-11)\ **Post date:** [February 19, 2017, 12:11am UTC](https://community.cartalk.com/t/2002-galant-wont-operate-when-the-lights-are-on/100084/5 "2017-02-19T00:11:51Z")
Also check if your tail lights, brake lights and rear turn signals are working properly. An incorrect bulb can cause the brake lights to be on when the headlights are turned on. The cruise control will not function if the brake lights are on.