I connect my positive cable to battery after recharging it. head lights and windshield washer pump come on without key in ignition. where do I start looking for this cause?

Asked by Oct 15, 2016 at 02:12 PM about the 2005 Ford Mustang V6 Premium

Question type: Maintenance & Repair

Battery issues electrical

1 Answer

70

The Head lights I get if the headlight switch is in the Auto Position, but should time out after the preset time, call it 1 minute. Turn the light switch back to the Off position. The Windshield washer pump motor is a trip. the only thing that should turn that on is the pushbutton on the column with the key on. Sounds like the ignition switch Relay could be stuck on. Do you live in a dusty environment? The Relay should be in the Fuse block panel. Read the cover of the fuse box and start pulling relays until the lights and pump motor go off. Do you have rodents chewing on the wiring harness? Most of the relays can be interchangeable as a test. When you find the stuck one, NAPA, or another quality parts house should have them for less then $20 each.

Your Answer:

Ford Mustang Experts

  • #1
    Tom Demyan
    Reputation
    5,060
  • #2
    F_O_R
    Reputation
    1,530
  • #3
    Bob Beaman
    Reputation
    1,430
View All

Related Models For Sale

Used Dodge Charger
280 Great Deals out of 31,968 listings starting at $1,850
Used Chevrolet Corvette
91 Great Deals out of 15,032 listings starting at $3,620
Used Ford Mustang SVT Cobra
5 Great Deals out of 236 listings starting at $4,999
Used Ford F-150
2,280 Great Deals out of 208,575 listings starting at $1,300
Used BMW 3 Series
856 Great Deals out of 31,256 listings starting at $1,250
Used Jeep Wrangler
225 Great Deals out of 16,708 listings starting at $3,000
Used Chevrolet Silverado 1500
1,780 Great Deals out of 153,003 listings starting at $1,000
Used Nissan 350Z
30 Great Deals out of 982 listings starting at $3,999
Used BMW M3
21 Great Deals out of 1,481 listings starting at $6,399
Used Honda Accord
552 Great Deals out of 102,993 listings starting at $950

Used Cars For Sale

2014 Ford Mustang V6 Premium For Sale
6 Great Deals out of 176 listings starting at $9,115

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.