# Turn signals and hazard lights not working

**URL:** <https://community.cartalk.com/t/turn-signals-and-hazard-lights-not-working/93075>\
**Category:** Maintenance/Repairs\
**Tags:** electrical-wiring, lights\
**Created:** [April 18, 2016, 9:47pm UTC](https://community.cartalk.com/t/turn-signals-and-hazard-lights-not-working/93075 "2016-04-18T21:47:21Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![EricM](https://avatars.discourse-cdn.com/v4/letter/e/48db29/32.png) [@EricM](https://community.cartalk.com/u/EricM)\
**Post date:** [April 18, 2016, 9:47pm UTC](https://community.cartalk.com/t/turn-signals-and-hazard-lights-not-working/93075/1 "2016-04-18T21:47:21Z")

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Recently my Infiniti G20’s turn signals and hazard lights stopped working. I replaced the flasher relay and turn signal switch but it did not solve the problem. Here is the kicker or clue. The lights flash when locking or unlocking the car with the remote FOB. Any suggestions??

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**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [April 19, 2016, 1:30am UTC](https://community.cartalk.com/t/turn-signals-and-hazard-lights-not-working/93075/2 "2016-04-19T01:30:20Z")

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Sorry, but you’re gonna have to stop by an Infinity parts department and ask for the schematic. Or, if you can find it online, post it here.

Or, ask for the “initiation procedure” used to set up the Body Control Module (BCM) prior to delivery. I’m guessing it ties the flashers, directionals, and security system into the same system and manages it through the BCM. It may just need to be reprogrammed. I’ve had to do that before to my car after changing the battery.

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [April 19, 2016, 1:40am UTC](https://community.cartalk.com/t/turn-signals-and-hazard-lights-not-working/93075/3 "2016-04-19T01:40:56Z")

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**^**  
I believe that mountainbike is on the right track by suspecting the BCM as the source of the problem.

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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:** [April 19, 2016, 1:46am UTC](https://community.cartalk.com/t/turn-signals-and-hazard-lights-not-working/93075/4 "2016-04-19T01:46:43Z")

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Without knowing the year of the vehicle, we don’t know if the turn signals/hazards are even controlled thru the BCM.

Tester

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**Author:** ![EricM](https://avatars.discourse-cdn.com/v4/letter/e/48db29/32.png) [@EricM](https://community.cartalk.com/u/EricM)\
**Post date:** [April 19, 2016, 1:47am UTC](https://community.cartalk.com/t/turn-signals-and-hazard-lights-not-working/93075/5 "2016-04-19T01:47:54Z")

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Its a 2002 G20

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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:** [April 19, 2016, 2:22am UTC](https://community.cartalk.com/t/turn-signals-and-hazard-lights-not-working/93075/6 "2016-04-19T02:22:23Z")

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Nope!

The BCM isn’t part of the circuit.

The lamps that aren’t functioning are the turn signal/hazards which are mounted on the fender. The stop lamps are on a different circuit which are mounted on the trunk lid.

The wiring diagram shows that circuit first passes thru the hazard switch, and then onto the combination/turn signal switch, and then onto the turn signal/hazard lamps.

Is your hazard switch mounted on the dash?

If so, that’s the next thing to check.

Tester

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<div class="post-metadata">

**Author:** ![EricM](https://avatars.discourse-cdn.com/v4/letter/e/48db29/32.png) [@EricM](https://community.cartalk.com/u/EricM)\
**Post date:** [April 19, 2016, 4:12am UTC](https://community.cartalk.com/t/turn-signals-and-hazard-lights-not-working/93075/7 "2016-04-19T04:12:14Z")

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Its mounted on the dash, above the rear defogger in between a couple dash vents.

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**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:** [April 19, 2016, 8:43pm UTC](https://community.cartalk.com/t/turn-signals-and-hazard-lights-not-working/93075/8 "2016-04-19T20:43:41Z")

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If you haven’t already made sure power is getting to those circuits using at least a test light probe you would be wise in doing that before doing anything else. Good working electrical parts can’t do much without power getting to them.
