Question about 2003 Ford F150 Regular Cab

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How do I reset the battery light on 2003 f150

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By clearing the problem that the battery charge circuit is having.
Did you check the Alternator charge circuit fuse ( engine compartment fuse # 11 ) ?
IF this tests good with a meter on both sides, next is to check the harness where it plugs into the alternator, some times the contacts can get corroded
how do I reset the battery light on 2003 f150 - c475e2f.jpg
If this has power from fuse #11 above, next is to check the brushes in the alternator ( watch those springs when you check them ) :

You might also need to have the battery load tested, as well as having the alternator bench tested for the RPM range.

Posted on Oct 03, 2010


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Not sure what you mean by reset.
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I have a 2003 F150. When I attempt to start it there is nothing, wont turn over, no light nothing, battery is new.

Check for a switch on the brake pedal or the clutch pedal if it is a stick. The safety switch keeps the starter from turning if it does not get a signal showing that the vehicle can't move.

With the brake switch, if it is broken the brakelights will not light up and you will need to reposition it or replace it.

Mar 04, 2014 | 2003 Ford F150 Regular Cab

1 Answer

2003 ford f150 battery light comes on and battey guage pegs at high output all lights that are on get really bright then all guages reset replaced alternator 6 mos. ago

regulator out again,it is the black box on the back of the alt. just change that and clean the battery terminals well ,try again.

Oct 07, 2011 | 2003 Ford F150 Regular Cab

1 Answer

2003 F150 - check engine light comes on and after having code reset, it came back on - all gauges going haywire, difficult to start. What is causing all this?

The CEL code, you need to know what it is to solve the problem, not just resetting it. If you have Autozone or the likes read it, get the number, not what the guy thinks needs to be replaced and post it back on this problem as a comment.

The gauges going haywire, do you mean when you turn the key on the gauges cycle to full, then to min, then work normal ? If so this is a sign of a low battery in the 97-03 MY F-150s. Couple this with the hard to start, it is showing as a battery that needs to be replaced.

Nov 07, 2010 | 2003 Ford F150 Regular Cab

2 Answers

Replaced battery after starting the lights

alarm is going off sounds like you have an after market alarm need to disarm it

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1 Answer

2003 F150 4x4 does not start after sitting about a week starter grinds and dome light and underhood lights flash (Fairly new battery and altenator). Truck does fine unless it sits for about a week, and...

you may have a parasittic draw some were check for components staying on when ignition off, also check for a loose ground also the battery may have a bad cell and not holding charge

Oct 06, 2009 | 2003 Ford F150 Regular Cab

1 Answer

Battery light

I would have to say that it is. I would recommend taking it to the nearest auto parts store and having them test the battery and alternator just to be sure it's not just the battery. Hope this helps.

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1 Answer

2003 Ford F150

disconnect the battery terminals... wait about 10 secs and reconnect... that should do it

Dec 08, 2008 | 2003 Ford F150 Regular Cab

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