Re: Detroit 6v92 died Reply #25 – September 01, 2022, 09:05:41 pm Here is the fuse location chart for the U300. Taking a test drive with a 5 amp fuse installed sound like a good way to sell a new ECU. I've worked for dealers as a kid, a big reason I never take a vehicle into a shop. Sure looks as if it calls for a 10 amp to me, especially since there is a 10 amp installed. They agree 100%So, we have the same 6V-92TA Detroit with the same DDEC II ECU. Does the coach in question have the same location placard with the same fuse rating? If so, why was a 5 amp fuse installed for a test drive. I may not be Perry Mason but...Pierce Quote Selected 2 Likes
Re: Detroit 6v92 died Reply #26 – September 01, 2022, 10:44:33 pm PierceOur fuse panels are the same it has a 10 amp for the ddec. I believe the 5 amp fuse in question is lead 439 in ddec wiring which by chart says ignition.Ken Quote Selected
Re: Detroit 6v92 died Reply #27 – September 02, 2022, 10:42:57 am Ken,I see the fuse in the schematic on reply #20. Looks like it goes to the ignition as you said and has to do with the low coolant level module and the cruise control. I take it that the low coolant module is in the ECM itself? Is it located in the fuse location map in reply #25?Looks like I may have to eat some crow pie as far as S&S goes. Here is the complete DDEC II troubleshooting manual in PDF format: https://ia803107.us.archive.org/4/items/detroitdieselddeciidiagnostictroubleshootingguide6se4891986ocr442pages/Detroit%20Diesel%20-%20DDEC%20II%20Diagnostic%20Troubleshooting%20Guide%20-%206SE489%20-%201986%20-%20OCR%20-%20442%20pages.pdfThis PDF might be good to download for 6V-92TA owners.Pierce Quote Selected 2 Likes
Re: Detroit 6v92 died Reply #28 – September 02, 2022, 12:10:12 pm 442 pages! Hope I never need it! Thanks for posting...I think...see yaken Quote Selected 1 Likes
Re: Detroit 6v92 died Reply #29 – September 02, 2022, 11:34:27 pm Quote from: kenhat – September 02, 2022, 12:10:12 pm442 pages! Hope I never need it! Thanks for posting...I think...see yakenThere will be a test......Tuesday Quote Selected 2 Likes
Re: Detroit 6v92 died Reply #30 – September 17, 2022, 07:47:18 am All is fixed and good to go. Stewart Stevenson found that the ecm was bad. Replaced with rebuilt. Quote Selected 6 Likes
Re: Detroit 6v92 died Reply #31 – September 17, 2022, 08:36:14 am Quote from: kpbowser – September 17, 2022, 07:47:18 amAll is fixed and good to go. Stewart Stevenson found that the ecm was bad. Replaced with rebuilt. My condolences for your loss. Congratulations on your new ECU. Quote Selected
Re: Detroit 6v92 died Reply #32 – September 17, 2022, 10:37:23 am Quote from: kpbowser – September 17, 2022, 07:47:18 amAll is fixed and good to go. Stewart Stevenson found that the ecm was bad. Replaced with rebuilt. $? Part and labor? I see the DDEC II available for rebuilding for $500 with used outright for $1000. Detroit DDEC2 ECM ECU Repair Service LIFETIME Warranty!! | eBayAnother company advertising 6V-92 DDEC II exchanges for $1295: Detroit Diesel DDEC 2 ECM – Re-manufactured - Detroit Diesel ECMPierce Quote Selected 1 Likes