No Dash Light Period…

[85 720 king cab 4x2]

Can somebody please help with some sort of dash lights I’ve gotten nothing at night I mean not a single light by dimmer, doesn’t seem to work. I’ve tried three different dimmers, and nothing works. What else could be wrong please help.! I’m 

[Draker]

Do you have power to the dimmer? Dash lights usually on the same circuit as tail lights. Do the tail lights work?

[datzenmike]

Good point. If front and rear parking, clearance lights, license lights, dash lights and interior light are out... all are powered by the 15 amp fuse located 13 over from the left hand side or 3 over from the far right hand side of the fuse box. Never trust a fuse visually, instead swap it with the 15 amp fuse beside it. If lights are restored it was the fuse, if it blows then you have a wire touching ground somewhere.

[DwayneOxford]

The ground is what the dash dimmer adjusts. Got to insure it's grounded. Or ground the light side and see if they work.

[85 720 king cab 4x2]

I’ve got taillights I’ve got marker lights. I got a license plate lights they are all lit. I have no dash lights I’ve had three different dimmer switches tried all three of them to no avail.??

[DwayneOxford]

On 10/7/2023 at 8:05 PM, 85 720 king cab 4x2 said:

I’ve got taillights I’ve got marker lights. I got a license plate lights they are all lit. I have no dash lights I’ve had three different dimmer switches tried all three of them to no avail.??

Insure dimmer's grounded?

[datzenmike]

If you look at the 3 wire plug on the illumination control, one is Black. The Black wire should go to ground so make a jumper wire from it to a known ground and see if this helps.

 

On the left side of the steering column up against the underside of the dash and forward of the column clam shell, there are two ten wire connectors. The White connector has a Black wire to ground for the dash gauges and lights. Unplugging and plugging back in may fix the contact issue.

 

The Blue 10 pin connector has the Red/Yellow power wire from the light switch. You could check for voltage, and again unplugging and plugging back in might fix a contact problem. If no power the problem may be in the light switch.

[DwayneOxford]

[85 720 king cab 4x2]

On 10/3/2023 at 11:50 PM, Draker said:

Do you have power to the dimmer? Dash lights usually on the same circuit as tail lights. Do the tail lights work?

No I don’t think so?? Man I am not very good with Trucks I am a Green Novice so I have a meter I can check for power there? I was going to try the jumper idea Mike has also but any step by step to a Green Horn u could give me would be great-Trust me I do appreciate any guidance u could possibly shoot my way. Thanks 

Edited October 10, 2023 by 85 720 king cab 4x2
Wrote the wrong thing down

[85 720 king cab 4x2]

Yes the tail lights work! As do the license plate lights, the front marker lights all of those work just know Dash and no Dimmer I don’t know where the power comes to that dimmer switch?? plus my horns never worked. I guess that has nothing to do with it though.??

[85 720 king cab 4x2]

7 hours ago, DwayneOxford said:

 

3 hours ago, 85 720 king cab 4x2 said:

On 10/7/2023 at 8:24 PM, Thomas Perkins said:

I use a 13/16 socket and NGK Iridum's on mine.Some people use stock copper NGK spark plugs.

 

On 10/7/2023 at 8:49 PM, 1001001SOS said:

Yep 13/16, had to grab one today.

 

[85 720 king cab 4x2]

Thanks guys for the spark Plug Socket side I thought I was tripping because some one told me 14mm end it didn’t even come close. I had a 13/16 I just bought because my socket set,  only went up to 19 mm and I guess I figured that was the closest thing but I didn’t wasn’t sure thanks for the help.

Edited October 10, 2023 by 85 720 king cab 4x2
Broken English

[85 720 king cab 4x2]

Sorry I just went back to edit it that’s it

[DwayneOxford]

The threaded end of the plug is 14MM.

[datzenmike]

8 hours ago, 85 720 king cab 4x2 said:

Yes the tail lights work! As do the license plate lights, the front marker lights all of those work just know Dash and no Dimmer I don’t know where the power comes to that dimmer switch?? plus my horns never worked. I guess that has nothing to do with it though.??

  

Actually you do know where power comes from:

 

 

22 hours ago, datzenmike said:

If you look at the 3 wire plug on the illumination control, one is Black. The Black wire should go to ground so make a jumper wire from it to a known ground and see if this helps.

 

On the left side of the steering column up against the underside of the dash and forward of the column clam shell, there are two ten wire connectors. The White connector has a Black wire to ground for the dash gauges and lights. Unplugging and plugging back in may fix the contact issue.

 

The Blue 10 pin connector has the Red/Yellow power wire from the light switch. You could check for voltage, and again unplugging and plugging back in might fix a contact problem. If no power the problem may be in the light switch.

 

It doesn't follow that the illumination control switch is the problem for no dash lights, it could be, but it could be several things. You changed the dimmer with no effect.

 

The light switch is on the steering column so possibly one of those 10 pin connectors?

[85 720 king cab 4x2]

I am sure u are probably correct. I’ve had a separate line for my headlights they went out. I don’t know how long ago I got a different one from GD Humpries and it still didn’t work so I ran a separate relay, separate rocker switch for the headlights so i at least have lights and I’ve just recently figured out if I turn the headlight switch all the way on and hit the brights I’ve got bright lights !! so I went back and hooked the regular headlights back up to the truck OEM plugs, to absolutely Nothing! So what ever got screwed up with a Main headlights is the same time when I lost my dash lights & my horn when I switch to a garret steering wheel , I haven’t had dash lights for almost entire time I’ve had the truck! I just wish I knew a little bit more about the electrical system. I read and read and read I see stuff under there but I just don’t understand it. I appreciate you guys trying to help me. It’s very frustrating. I spent a lot of money on all that stuff and came out to nothing in the end, thanks again for your help 

Edited October 12, 2023 by 85 720 king cab 4x2

[DwayneOxford]

I'd recommend educating yourself on basic automobile electrics and try it agin.

Long ago learned too that lotsa custom stuff is a mistake. My ace mechanic grandfather oft said, "The further from stock you go, the more trouble you gonna have".