2008 envoy Denali right turn signal and right hazard quit. replaced relay worked for 20 minutes of driving then right turn and right hazard quit again??? LEFT SIDE IS FINE

You replaced factory bulbs with led bulbs ? There is no relay BCM - body control module does it
Turn Signal Lamps
The body control module (BCM) is responsible for controlling the turn signals and hazard lamps. When the turn signal switch is placed in either the left turn or right turn position, the BCM receives a signal from the turn signal switch. The BCM then sends an on-off voltage signal to either the left or right turn signals and their instrument panel cluster (IPC) indicator. When the hazard switch is pressed, the BCM receives a signal from the hazard switch. The BCM then will send an on-off voltage signal to all the turn signal lamps. All the turn signal lamps will flash including both IPC turn signal indicators.

Put the stock lamps back . LED's won't work .

It is probably the multi purpose switch

rough guess is that there is a connection that is not properly connected

Turn signal switch or the bulb. Check both

First check turn signal fuse and relay if, they are good then try pressing on and off the hazard switch while turning the signal switch on.If signals start to work replace hazard switch.If hazard switch is good then replace turn signal switch.

Yes, most likely the hazard switch is the culprit. It should have a built-in relay.

had the same problem as you. I replaced the relay twice before it worked right. Just to test if it is the relay what I did was when the turn signal quit working I pushed the hazard button a few times then the turn signal started working again. Good Luck hope this helped

multfunction switch go to oriely auto parts buy 20 dollar book you will be money ahead hey vote for me ok if you need help let me know

About the only thing that would cause both the turn signals and hazard lights not to work at the same time would be the flasher relay.

please check your flasher relay. it is normally a three prong relay box.


tnx 4 using fixya,

drcool