I started getting the 5 sets of 5 beeps which indicates an airbag error. My light doesn't come on when I turn off the passenger airbag switch and the light on the dash doesn't come on when I first cut the key on, so I started checking fuses. The airbag fuse, #22 tested fine. But while checking these things I found out that I have no power to the following fuses; 1. #16 headlights (hi beams), cluster (high beam indicator). 2. #18 instrument illumination (dimmer switch power). 3. #20 Audio, GEM, PCM, Transmission range sensor. 4. #21 DTR sensor, Clutch switch, Starter relay, I/P fuse 20. 5. #26 Right-hand low beam headlight. 6. #27 Foglamp relay and foglamp indicator, Main light switch (upstream). 7. #28 Left-hand low beam headlight.
All of the headlights, etc are working and the only service engine error I get when I use my code scanner is P0401. Why would these items work if I'm not getting power to the fuse block. These fuses are not blown mind you, not getting power to either side of the fuses.

I'm going to replace the bulb in the passenger side airbag switch, but what would keep the warning light on the dash from lighting up when I turn the switch on?

The truck is an 03 F150 XL, 2wd automatic transmission. Very basic work type truck, no fog lights, no power windows or doors, etc. It has the 4.6 Romeo engine in it. Any help/advice is greatly appreciated.

 

You say fuses feeding headlamps have no voltage present! But say in second para the lights work!
Did you check the voltage with headlite switch on or off? Confused!
I would look at the big fuses next to the battery. Seems you have a main feed problem or open cable for so many circuit not working.
Looking at drawings shows all these circuts are fed "Hot at all times" so a main feed is likely a cause.
The 401 code is not related to your power issue directly as it is a specific test failure the PCM does on a running motor. It is a seperate fault with the EGR system.
Could be blocked passage behind the EGR valve, a faulty DPFE , EGR valve, VR solenoid or hoses involved with these parts.
Good luck.

 

I'm confused too! I only mentioned the 401 problem to state that no other codes were showing up. I tried the fuses with the truck running. I solved the airbag warning chime....both lights were blown, the one in the instrument cluster and the one in the passenger switch. I can't understand how the lights and all are working without power to the fuse block, but I'm not going to mess around with it too much....like they say, if it ain't broke, don't fix it. It sure has me curious though.

 

99 ranger.no power to fuse #28 radio

 

Start your own thread in the correct forum instead of hijacking an unrelated and dormant thread.

 

Was a fix found for this I'm having the same issues

 

Edhetling89, This thread is too old and the OP says it was just burnt bulbs. You should start your own thread with your exact symptoms, including vehicle year, model, engine, 2x4 or 4x4, manual or auto transmission and mileage also helps.