Don't think I am getting lockup. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chengny · 02-19-2015, 10:23 AM

Oh, okay - a diesel. I'm guessing with a 700R4 (2WD?).

Real straight forward. Assuming power available from the fuse block and no wiring issues, there are just 2 permissives to satisfy :

1. Brakes not applied

2. Throttle at least 10% open

Schematic:

Also, to verify that the TCC will operate you don't even have to splice into the power lead. There should be a test connection (orange) under the dash.

It won't have anything connected to it, and should be between the fuse block and the steering column. Run a switched hot wire to it and play around with the TCC. You'll know if it works right away:

02-19-2015, 10:23 AM	#4
chengny Registered User Join Date: May 2007 Location: New Hampshire Posts: 349	Re: Don't think I am getting lockup. Oh, okay - a diesel. I'm guessing with a 700R4 (2WD?). Real straight forward. Assuming power available from the fuse block and no wiring issues, there are just 2 permissives to satisfy : 1. Brakes not applied 2. Throttle at least 10% open Schematic: Also, to verify that the TCC will operate you don't even have to splice into the power lead. There should be a test connection (orange) under the dash. It won't have anything connected to it, and should be between the fuse block and the steering column. Run a switched hot wire to it and play around with the TCC. You'll know if it works right away:



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