Tail Light Harness Junction Block

Start testing direct at the incoming harness with a test light and verify all your signals and lights are working to that point. If by rear lights you mean everything in the rear lamp assemblies power for the tail lights running lights starts at the 15a parklamp fuse in the underhood junction block passes through the automatic lamp control alc relay and the right instrument panel junction block to the tail filament of the dual stop tail lamp and the separate tail. Age heat or moisture can cause shorting and corrosion on the tail light circuit board and you may notice bulbs not working or coming on when they shouldn t.

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Tail light harness junction block.

Genuine gm 15304995 tail lamp wiring harness junction block rear 39 99 only 1 left in stock order soon. Iff all works at that point then plug the main back in and start testing at the left and right plug ins on the junction block. Product names product images check price 1 genuine gm 15304995 tail lamp wiring harness junction block rear. View product 2 apdty 756760 wiring harness pigtail connector 7 way wire leads fits tail lamp or instrument cluster junction box on escalade avalanche silverado sierra suburban tahoe yukon h2 replaces gm 15306339.

View product 3 dorman 923 012 tail lamp circuit board. The tail light circuit board is mounted in your tail light housing and usually includes the plug for the wiring harness and the bulb sockets. This is the same for a lot of different gm trucks. Okay if you are having some problems with your rear lights.

In this video i am going to show you how to replace tail light harness junction on this 2002 gmc sierra. Another thing to try is pull all the plugs out of the junction block. Ships from and sold by mygmwholesaleparts. Tail lamp block gm item weight 4 8 ounces product dimensions 5 13 x 3 75 x 1 31 inches item model number 923 012 exterior ready to paint if needed manufacturer part number 923 012 oem part number 1p1730.

The only tools you ll need are a 13mm wrench screwdrivers and some penetrating oil.

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