Brake lights come on & off when vehicle is parked.

Asked by Nov 23, 2013 at 06:37 PM about the 2003 Ford F-350 Super Duty Lariat 4WD Extended Cab LB

Question type: Maintenance & Repair

Already checked brake switch, and lights come on & off with brake switch removed.  If it is a relay problem I can't find actual location.

2 Answers

64,995

Your brake light switch completes the circuit to ground and the lights come on. The positive side (+) is always hot on this circuit even with the ignition switch off. You have a bare ground wire touching something metal (unpainted) in the circuit. You'll have to trace the wires to find it. Start at the bulb sockets and work your way forward. HTH. - Jim

1 out of 1 people think this is helpful.
45

SEE questions

Your Answer

Add photo

Related Questions

Search Ford F-350 Super Duty Questions

Ford F-350 Super Duty Experts

#1 Bigbob Reece
Bigbob Reece
Reputation 2,580
#2 tikun
tikun
Reputation 1,330
#3 JoeAndJoe
JoeAndJoe
Reputation 1,100
View All

Related Models For Sale

Used Ford F-250 Super Duty
345 Great Deals out of 47,459 listings starting at $1,795
Used Dodge Ram 3500
84 Great Deals out of 2,157 listings starting at $5,250
Used Ford F-450 Super Duty
45 Great Deals out of 2,610 listings starting at $6,900
Used Ford F-150
2,242 Great Deals out of 208,465 listings starting at $1,499
Used Chevrolet Silverado 2500HD
303 Great Deals out of 26,890 listings starting at $1,250
Used Dodge Ram 2500
138 Great Deals out of 5,329 listings starting at $2,500
Used GMC Sierra 2500HD
109 Great Deals out of 14,622 listings starting at $2,650
Used Chevrolet Silverado 1500
1,740 Great Deals out of 168,425 listings starting at $1,800
Used Chevrolet Silverado 3500
25 Great Deals out of 581 listings starting at $4,998

Used Cars For Sale

2017 Ford F-350 Super Duty For Sale
4 Great Deals out of 13,826 listings starting at $24,821
2016 Ford F-350 Super Duty For Sale
21 Great Deals out of 2,653 listings starting at $25,950
2015 Ford F-350 Super Duty For Sale
38 Great Deals out of 1,535 listings starting at $16,599
2014 Ford F-350 Super Duty For Sale
29 Great Deals out of 739 listings starting at $19,500
2013 Ford F-350 Super Duty For Sale
23 Great Deals out of 591 listings starting at $10,950