Diesel Forum - TheDieselStop.com - Reply to Topic
1999-2007 General Questions General questions related to 1999-2007 Super Duty trucks. If it doesn't fit the other categories, post it here. Gas engine discussion that pertains to all models is allowed. Specific gas engine questions should use the Gas Engines forum.

Thread: Headlight issue - no current to fuses 9 & 10 Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Diesel Forum - TheDieselStop.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
01-05-2019 10:58 AM
Chip32559 Thank you. I did check the grounding and it appeared to be okay but I will take another look. I also looked at all the fuses, not just 9, 10, & 11. Mine are all 10 & 20 amp. It is an old truck.
01-04-2019 11:48 PM
klhansen It makes a difference on whether you have sealed beam or aero style headlights on the fuse numbering.
High beam indicator for both sealed beam and aero headlights are on the same side of the fuse as the headlights. It could be that the grounds are messed up. You need a ground to complete the circuits.
For aero headlights, power comes from fuse #10 (30A) in the Battery Junction Box (under hood), thru the headlight switch, to fuse #16 (15A) in the Central Junction Box (under dash), feeding both the indicator and the headlights. Low beams come off the headlight switch thru fuse #9 (10A) to the left headlight and fuse #11 (10A) to the right headlight. There is a ground for both high and lowe on each side, and a separate ground for the indicator.
If you have sealed beams, the fuse number feeding the headlight switch is #13 instead of #10.
01-04-2019 04:01 PM
Headlight issue - no current to fuses 9 & 10

2000 F350 7.3 Diesel. I turned on lights - the flickered and went out. Tried high beams, they flickered and went out but the high beam indicator on the dashboard remained on. All other lights and electrical systems work. So far I have:

1. Checked the fuses in the box under the hood.
2. Replaced the dimmer (multi) switch on the steering column.
3. Checked the wires to the underside of the fuse box under the hood.
4. Tested the fuse sockets in the box under the hood.

The problem was not 1, 2, or 3 but I found no current to the fuse slots for fuses 9 and 10. 9 is the left headlight and 10 is the Power Point.

From the wiring schematic, it looks like the common thread is that both fuses and the high beam indicator connect to the Central Junction Box. This is were I get lost.

Is the Central Junction Box the fuse box under the drivers side dash?

Are there specific fuses that go to the under hood fuses 9 & 10?

Any help anyone can provide would be greatly appreciated.

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

For the best viewing experience please update your browser to Google Chrome