Kickinmule Posted December 11, 2014 Share Posted December 11, 2014 If anyone could shed a little more light on this... My 88 chief doesn't have the TCU connector under the dash anywhere, no surprise since it's running a BA10. If I choose to replace the BA10 with the AW4 out of my donor 92 Cherokee will I need to bring the TCU and it's harness over with the tranny and splice it in or do I need to seek out an 88-90 TCU and it's harness for said 92 AW4? Link to comment Share on other sites More sharing options...
Kickinmule Posted December 11, 2014 Author Share Posted December 11, 2014 Ok found it. ParadiseMJ swapped in a complete renix engine harness with TCU and it's harness to power his 94 aw4 swapped into his renix MJ. So plans are to pull the aw4 from the 92 XJ and it's accompanying 231 TC. Then go shopping for a 4x4 auto renix harness and TCU at the jy. Maybe sometime after Xmas... Link to comment Share on other sites More sharing options...
HOrnbrod Posted December 11, 2014 Share Posted December 11, 2014 Be aware the TCU pinouts are slightly different between the Renix and HO connectors. The torque converter lock-up signal comes to mind. This is all documented in one of ParadiseMJ's threads. Link to comment Share on other sites More sharing options...
Kickinmule Posted December 11, 2014 Author Share Posted December 11, 2014 Thanks Don, do you mean that the 92 HO AW4 won't be completely plug and play on the renix TCU? Link to comment Share on other sites More sharing options...
Dando Posted December 11, 2014 Share Posted December 11, 2014 I swapped my 95 aw4 into my 90 MJ with the renix tcu with no issues. Link to comment Share on other sites More sharing options...
HOrnbrod Posted December 11, 2014 Share Posted December 11, 2014 No matter which vehicle the AW4 comes from, the TCU must match the harness you are using. http://comancheclub.com/topic/41001-tcu-era-differences/?hl=converter&do=findComment&comment=414264 Link to comment Share on other sites More sharing options...
Kickinmule Posted December 11, 2014 Author Share Posted December 11, 2014 Ok got it. Link to comment Share on other sites More sharing options...
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