# Check engine light wont work, bulb replaced, still nothing **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** hyundai, elantra\ **Created:** [August 25, 2017, 8:07pm UTC](https://community.cartalk.com/t/check-engine-light-wont-work-bulb-replaced-still-nothing/107242 "2017-08-25T20:07:53Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Countessatepes](https://avatars.discourse-cdn.com/v4/letter/c/edb3f5/32.png) [@Countessatepes](https://community.cartalk.com/u/Countessatepes)\ **Post date:** [August 25, 2017, 8:07pm UTC](https://community.cartalk.com/t/check-engine-light-wont-work-bulb-replaced-still-nothing/107242/1 "2017-08-25T20:07:53Z")
2006 hyundai elantra, was just purchased from a car auction via piazza group so for that big of a dealership id not suspect shady stuff. Light bulb was changed, still nothing…if i scan it the only thing it says is that the check engine light is not working properly. Any ideas? ---
**Author:** ![shadowfax](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/shadowfax/32/13026_2.png) [@shadowfax](https://community.cartalk.com/u/shadowfax)\ **Post date:** [August 25, 2017, 8:22pm UTC](https://community.cartalk.com/t/check-engine-light-wont-work-bulb-replaced-still-nothing/107242/2 "2017-08-25T20:22:16Z")
When you first turn the key to on, does the light turn on? ---
**Author:** ![Countessatepes](https://avatars.discourse-cdn.com/v4/letter/c/edb3f5/32.png) [@Countessatepes](https://community.cartalk.com/u/Countessatepes)\ **Post date:** [August 25, 2017, 8:40pm UTC](https://community.cartalk.com/t/check-engine-light-wont-work-bulb-replaced-still-nothing/107242/3 "2017-08-25T20:40:44Z")
No it doesnt. ☹ ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [August 25, 2017, 8:44pm UTC](https://community.cartalk.com/t/check-engine-light-wont-work-bulb-replaced-still-nothing/107242/4 "2017-08-25T20:44:31Z")
If you have fault P0650, Open in MIL control circuit, the wire may be cut between the PCM and the instrument cluster. Examine the wiring harness carefully. ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [August 25, 2017, 8:47pm UTC](https://community.cartalk.com/t/check-engine-light-wont-work-bulb-replaced-still-nothing/107242/5 "2017-08-25T20:47:37Z")
Concur, sounds like the wire to the check engine light has been cut. Doesn’t auger optimism. ---
**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:** [August 25, 2017, 8:50pm UTC](https://community.cartalk.com/t/check-engine-light-wont-work-bulb-replaced-still-nothing/107242/6 "2017-08-25T20:50:58Z")
In the fuse box in the interior of the vehicle, check if fuse #2, 10 amp has blown. Tester ---
**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\ **Post date:** [August 25, 2017, 11:21pm UTC](https://community.cartalk.com/t/check-engine-light-wont-work-bulb-replaced-still-nothing/107242/7 "2017-08-25T23:21:31Z")
After the obvious first step of getting the CEL working the likely second step will be discovering the CEL coughing up some serious DTCs and which is the reason the car went to auction. ---
**Author:** ![sgtrock21](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/sgtrock21/32/246_2.png) [@sgtrock21](https://community.cartalk.com/u/sgtrock21)\ **Post date:** [August 26, 2017, 5:46pm UTC](https://community.cartalk.com/t/check-engine-light-wont-work-bulb-replaced-still-nothing/107242/8 "2017-08-26T17:46:54Z")
Unfortunately very likely.