Hey guys,
I'm new to the forum so please excuse me if I miss something here. I also cannot post a new thread yet, so this is the closest one I found. To preface my question, I've read through all the threads i could find and even used the alternate search tool on the home page but haven't found anything that has helped resolve my problem. I have a 1998 T4R, 4x4, 3.4L V6, with auto transmission and the Ford cruise control (as opposed to the Denso one the shop manual mentions is available). My problem is that the CC light will come on when engaged in park. The light will stay on when placed in drive but CC will not engage. If turned off while in drive it will not turn back on. It cannot be turned on at all when in drive. Here is what I've tried:
1. checked all fuses based on shop manual and these threads
2. Brake light (stop light) switch has been changed and checked for proper clearance. All lights work ok
3. Cable from CC computer to throttle body not binding or deformed
4. CC computer connector and wires appear to be fine
5. No codes at all appear on ECM with code reader. No fault lights or any other abnormal indications from the vehicle of any kind.
6. I have not checked the basic functions of the CC switch yet because i know the on/off switch works and until I can get it to turn on/off in drive the other functions are of secondary concern (I think...).

The troubleshooting guide in the shop manual is a little confusing and appears to need a couple of special tools, most importantly an inline connector to allow for voltage/signal readings (if I'm understanding it correctly). My final thought is to just take it to Toyota and see if they can find the problem, but wanted to check the vast knowledge base here first. Any help or suggestions is greatly appreciated.