Ford F-150 / 250 / 350 / 450:

1998 F150 4.6 XLT

You are not logged in.

#1 6/21/2010 1:01 PM

boboduane
New member
Registered: 6/21/2010
Posts: 1

1998 F150 4.6 XLT

Interior lights stay on, and rear bed lights, which are on the same circuit, unable to find circuit diagram in any manual I have for F150. Door ajar light is not on, there for I would think door switch has nothing to do with it. I know there is a timing circuit but again, unable to find diagram. Please advise and thanks

Ford F-150 / 250 / 350 / 450 Recalls, TSBs and Service Information >> ALLDATA

Offline

 
Sponsored Links
ALLDATAdiy.com

The Leading Source of Professional Diagnostic and Repair Information.

#2 6/21/2010 1:46 PM

TechHelp2
Administrator
Registered: 11/24/2009
Posts: 1298

Re: 1998 F150 4.6 XLT

In the junction box relay panel there is a 15 amp fuse number 14. This is the fuse that controls the Battery Saver Relay, Interior Lamp Relay, Generic Electronic Module (GEM) / Central Timer Module (CTM) and also the Interior Lamp Switch.

Start by unplugging the number 14 fuse to see if the lights go out. If they do then install the fuse again and you can start unplugging one relay at a time to see if the lights go out.

It could be a stuck relay/module or a bad interior lamp switch.

If you need to get a wire schematic, you can get one at ALLDATAdiy.com


realworldautomotive.com
car and truck information like nowhere else
Ford F-150 / 250 / 350 / 450 Recalls, TSBs and Service Information >> ALLDATA

Offline

 
E-mail Page
Print Page
Save or Share Information
ALLDATAdiy.com is the leading source of factory diagnostic & repair information specific to your car.

Powered by PunBB
Copyright © 2007-  RealWorldAutomotive.com

Save or Share Automotive Information
Custom Search