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D.I.Y. RAD Rock+Rail shifter install with no CEL on a 99

2 Questions:

Could you elaborate on how to add the resistors? On my '00 I cut the solenoid wires on the existing TCU harness and routed them to a On/Off/On switch, and then wired in rail shifter. Would I add the resistors inline from the wires going to the TCU from the switch so it keeps it from tripping? I don't think I have a clear understanding based on your pictures.

Also, how do you add an LED to let you know when the rail shifter is in use?

Thanks!
 
The resistors are bridged between the solenoid outputs on the TCU and ground. I drew up a schematic of how I had everything wired up.

https://www.facebook.com/download/713258552038507/RAD Shifter.pdf

As for adding an LED to indicate when the shifter is in use, since the switch it in my line of sight I can just glance down and see if the switch is up or down and that's how I know if the shifter is in use. If you wanted to do something like that you'd probably want to do a 3 pole switch and use the 3rd pole to switch power going to the shifter and add an LED onto that.
 
Darn, it says the link doesn't work. Any chance you could make a screenshot of it and paste it here? That would be really helpful!
 
rad%20shifter.jpg


Does that work for you?
 
Since it's been awhile since I've updated this thread, I figured I'd give everyone an update and let them know the mods are still working great and I recently installed a transgo hd2 kit in my trans. That alone really woke things up, my trans will now bark the tires of the 1-2 shift.

I also noticed I never added the part number for the TCU connectors and pins to this thread, so here are the part numbers for a 98-01 TCU.

http://octopart.com/178762-1-te+conn...2F+amp-2078160
Here is the TCU side connector
http://octopart.com/917994-5-te+conn...2F+amp-2094026
Here is the mating side connector
http://octopart.com/175269-1-te+conn...2F+amp-2044801
Here are the big pins, you need 10
http://octopart.com/175265-1-te+conn.../+amp-942645
Here are the smaller pins, you need 16
 
Since there is some questions asking about the TCU connector part numbers, here we go.

Here is a 97 TCU
modulo-do-cmbio-automatico-aissin-do-cherokee-56027951-D_NQ_NP_321701-MLB20386864671_082015-F.jpg


TCU Side
178811-1 Natural Color
178811-6 Gray (Factory Color)
178811-6 Yellow Color

Mating Connector
6-917992-6 Light Gray Color
917992-7 Yellow
917992-6 Dark Gray (Factory Color)
917992-5 Blue
917992-2 Black
917992-1 White

The pins and pin count are the same part numbers for the 97 and the 98-01
 
98-01 TCU

002.jpg


TCU Side connector
178762-1 Natural (Factory Color)
178762-2 Black
178762-5 Blue
178762-6 Gray

Harness Side Connector
917994-6 Dark Gray (Factory Color)
917994-5 Blue
917994-3 Orange
917994-2 Black
917994-1 White
 
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