Code P0740

Huntress1990

New Member
Hello I'm new in this page. I had my 99 acura integra ls sedan for about 4 years now and have been working on it on my own. I have come by a code P0740 which says TCC open circuit. The TCC is new and I also changed the TCM and reset it... When I rest the TCM after replacing both TCC and TCM I ran my car for a couple of days and the P0700 and P0740 were gone. Unfortunately today i checked the TCC due to seeing Oil leak coming from it. I took it out again and checked it, I noticed there is a screw right behind it the goes in the Transmission, so I tighten it and the leak stop but now that i set the TCC and new bolts in again, it is showing me the P0740 code again. Should i check the wiring and harness?
 
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