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  • 2005 - 2014 S-197 Mustang -General/Talk-
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2007 No Heat or AC Control

  • Thread starter Thread starter JonScoupe
  • Start date Start date Jan 18, 2025
J

JonScoupe

New Member
Jan 18, 2025
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0
1
Washington
Jan 18, 2025
#1
  • Jan 18, 2025
  • #1
Hello, I recently removed an aftermarket alarm system from my wife's 2007 Mustang. They used Posi-Taps for the connections behind the module in the passenger compartment and for the power for the module and the system worked, she just hated it. I removed all of the connections, taped over the tap points and started putting things back together. I verified operation of the car along the way, but when I put the console trim around the stereo and heater controls back on, I now no longer have any fan output and the indicator lights for the AC light. I followed the other threads here on the subject and tested all of the source fuses on the both of the fuse blocks (engine & passenger), checked for condensation/corrosion on the connectors on the secondary block unit, checked the connector on the back of the AC control module to make sure that it's connected firmly and nothing seems wrong. I ordered a salvage AC control unit assembly and it also doesn't work. Any tips on troubleshooting further? I've seen the other threads here about the issue, but nobody comes back and reports on what they did to fix the problem. TIA
 

89ripper

Founding Member
Jun 3, 2002
926
308
103
Rockford, Illinois
Jan 25, 2025
#2
  • Jan 25, 2025
  • #2
Hey Jon, have access to any wiring diagrams? Probably gonna need em
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
42,965
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Box behind Walmart
Jan 25, 2025
#3
  • Jan 25, 2025
  • #3
Go back through the tapped wires and check them for continuity.
 
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