2004 Select Shift Stopped Working

Aznav

Aznav

Active Member
Last seen
Joined
Jul 27, 2019
Thunderbird Year
2004
Suddenly, my SST quit working. It's all automatic and no select shift. Any ideas what this is about? THANKS!
 
Last edited by a moderator:
Suddenly, my SST quit working. It's all automatic and no select shift. Any ideas what this is about? THANKS!
When you move the selector lever into SST does the electronic indicator on the instrument cluster display the selected gear? If not the problem could be with the transmission control switch, inside the transmission shift selector, or the wiring itself. The transmission control switch gets voltage from fuse 6 in the central junction box, but so does the antilock brake system. I would think if fuse 6 was open you would also have problems with the antilock brake system.

If you have a scan tool that can read data you could look at the data for the transmission control switch, the manual mode + switch and the manual mode - switch to verify their operation.

doug7740
1955 Thunderbird Blue

Transmission Wiring Diagram.jpg
 
I will check this on the weekend. THANK YOU for your prompt reply and wisdom!!!
 
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