Iv posted this here before and never found the issue. It has gotten to the point they won’t stay on longer than 30 seconds and then flicker madly. All wiring looks good. Could it be a faulty headlight/fog light switch? Bulbs?

 

Check fuse G in the PDC. 

Then try trading the Fog Lamp relay.

The fog lamp and headlight share the same ground in the cab. 

Checked fuse was good. Swapped relay willtry them out in the morning. 

@Mopar1973Man Swapped relays checked fuse and still flickering. 

Check that fuse again with ohm meter. If the fuse is cracked the load will make it open up. Then flicker begins. I've seen the same thing with the starter solenoid fuse. 

 

Better yet just swap the fuse just to for the test.

Edited December 20, 20186 yr by Mopar1973Man

1 minute ago, Mopar1973Man said:

Check that fuse again with ohm meter. If the fuse is cracked the load will make it open up. Then flicker begins. I've seen the same thing with the starter solenoid fuse. 

 

Better yet just swap the fuse just to for the test.

Ok as i dont understand the wiring diagrams lol i just went into the PDC and chose the fog lamp fuse im assuming its the one you mentioned. its 5 fuses up and the second row to the left. 

I replaced the fog lamp fuse and they’re still not staying on. 

The only thing I can think of is finding the fog light ground and make sure it clean. It shows "exterior light system" for ground. I'm going to assume the ground at the front fender driver side near the headlight possibly. 

1 hour ago, Mopar1973Man said:

The only thing I can think of is finding the fog light ground and make sure it clean. It shows "exterior light system" for ground. I'm going to assume the ground at the front fender driver side near the headlight possibly. 

If that is fine could it be the head/fog light switch in the cab?

Possible...