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73-87 Chevy _ GMC Trucks => Electrical => Topic started by: Scaryfastatx on March 01, 2026, 06:24:03 pm

Title: TH350C orange test connector use?
Post by: Scaryfastatx on March 01, 2026, 06:24:03 pm

Hi all

I'm trying to get my lockup working on my TH350C to squeeze every bit of mpg out of the old Scottsdale

I want to know what kind of behavior I should be seeing on the orange connector:

- 12v when the clutch should be engaging?
- 12v only when the clutch is engaged?

Thanks?