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View Full Version : best laid plans and all that!



britlude
22-12-2019, 11:11 PM
well so much for the plan i had today... didn't go quite as i had expected!

in preparation to doing some preventative maintenance i purchased some of these....
https://live.staticflickr.com/65535/49258648663_ffb45fd89e_c.jpg (https://flic.kr/p/2i3Ps6V)2019-12-22_03-58-04 (https://flic.kr/p/2i3Ps6V) by NSX Jon (https://www.flickr.com/photos/152809076@N06/), on Flickr

technically i purchased 'some more' of these, as i bought a pair, put them somewhere safe, lost them, and purchased some more ready for my xmas break plan! pull out the EPS ECU and swap out the relays as they are known to fail......

so dig into the car , glovebox out, and the sub out i could get to the appropriate bits n bobs.... i disconnected the battery as i knew there are mainpower lines going to the power controller side of things....

soon i had this.....
https://live.staticflickr.com/65535/49259284847_05b772eb70_c.jpg (https://flic.kr/p/2i3SHdB)Nsx computers (https://flic.kr/p/2i3SHdB) by NSX Jon (https://www.flickr.com/photos/152809076@N06/), on Flickr

of course you can't see this sticker until its out...... and when you pop the lid off....
https://live.staticflickr.com/65535/49258605383_b0846e6d1b_c.jpg (https://flic.kr/p/2i3PeeH)Nsx computers (https://flic.kr/p/2i3PeeH) by jon sutherland (https://www.flickr.com/photos/152809076@N06/), on Flickr

not quite what i was expecting, its completely different to all the other examples on the internet, and doesn't take the replacement high current relays to replace the relays known to fail....

ho hum, put it all back together and back in then.... at least i checked that there were no electrolytic capacitor based issues.....

britlude
22-12-2019, 11:26 PM
so, while the glove box was out, i moved onto the eps ecu (the small one)
https://live.staticflickr.com/65535/49258605303_535682df5f_c.jpg (https://flic.kr/p/2i3Pedk)Nsx computers (https://flic.kr/p/2i3Pedk) by jon sutherland (https://www.flickr.com/photos/152809076@N06/), on Flickr

and checked the electrolytic caps in that....
https://live.staticflickr.com/65535/49259092886_4e054792d9_c.jpg (https://flic.kr/p/2i3RJ9W)Nsx computers (https://flic.kr/p/2i3RJ9W) by jon sutherland (https://www.flickr.com/photos/152809076@N06/), on Flickr

all ok!!

so thought i'd check the door lock computer for the same, as it had to come out to get the EPS ECU out.....
https://live.staticflickr.com/65535/49259284182_48e1270112_c.jpg (https://flic.kr/p/2i3SH29)Nsx computers (https://flic.kr/p/2i3SH29) by NSX Jon (https://www.flickr.com/photos/152809076@N06/), on Flickr

that was ok too...
https://live.staticflickr.com/65535/49258604843_b001d867af_c.jpg (https://flic.kr/p/2i3Pe5p)Nsx computers (https://flic.kr/p/2i3Pe5p) by NSX Jon (https://www.flickr.com/photos/152809076@N06/), on Flickr

so with abject failure so far, i thought, as i'm there, i'd swap over my cruise control ECU to lose the JDM max cruise limit, as i had a spare.....
https://live.staticflickr.com/65535/49259284252_72c00cc81c_c.jpg (https://flic.kr/p/2i3SH3m)Nsx computers (https://flic.kr/p/2i3SH3m) by NSX Jon (https://www.flickr.com/photos/152809076@N06/), on Flickr

turns out my spare is for a manual transmission,and mine is an auto..... the nsx electrics fault finding manual i have gave them as doing the same thing, with the only differences being connecting to the gearbox from the same terminal, but as i couldn't be sure of internal differences and conflicts, i put the AT one back in! just to add to it, the cruise control is a sealed box so couldn't check anything without literally breaking out a tin opener!!!

oh well, at least i know the circuits are currently healthy! and i do have 4 relays available! lol

Pride
23-12-2019, 12:53 AM
It makes me smile when I see complex circuit boards (at least to me) and control units in our so called "simple" designed NSX's.