2004 Mercury Station Wagon Alternator

2004 MERCURY SABLE STATION WAGON
110,000 MILES • 6 CYL • FWD • AUTOMATIC
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DUTCHER11
  • MEMBER
  • 1 POST
When replacing the battery, I got the wrong model and connected the battery backward backwards. The terminals were reversed. The horn sounded and I realized the problem and I disconnected it. After connecting the battery properly, I started the car and the radio wouldn't work. i replaced a blown fuse, the it was fine. Two problems remain.

1) The car heater doesn't produce any heat and
2) the battery is not charging.

I couldn't find any other blown fuses, but there are other square relays/fuses that have four connectors that I do not know how to check. What do you suggest?
Feb 5, 2010 at 5:56 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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MERLIN2021
  • CAR REPAIR CONTRIBUTOR
  • 17,250 POSTS
Where the positive cable attaches is a solenoid, it has three smaller diameter wires(gague), these are fusible links, the one that protests the charging system may have blown, pull on these wires, if they stretch, they are blown, or use a test light and probe them.
Feb 5, 2010 at 7:32 PM
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