qcwacojc Posted March 8, 2017 Share Posted March 8, 2017 Hey any help would be great. I have a 1996 CH613 I brought into the shop for a blown running lamp fuse and now have a crank and no start. Here's the story. My guy pulled every fuse to check for which one was blown instead of just using a test light and check each side of the fuse, and from then on I have had intermittent communication with the ECM and no communication with the FIC, the "eng shut down" and the "elct malfunction" lights come on and off intermittently I have cleaned every fuse and rechecked them, looked at wires in back of fuse panel, checked coolant level in the tank and it's sensor and oil level and so on........ I got a used ECM and FIC from a junk yard that were an exact match on the model and part numbers. Now the lights are coming on and going off like normal when you turn the key on but still no FIC communication and no start. I cannot find any wiring or fuse block diagrams to know what goes to what. The local dealers for 100 miles around no help with service (only parts). Does any one out there know how to get these diagrams or might have one? And if anyone has some insight on this issue that would be wonderful. Thanks ahead of time Jared Quote Link to comment https://www.bigmacktrucks.com/topic/49063-1996-ch613-crank-and-no-start/ Share on other sites More sharing options...
Mackpro Posted March 8, 2017 Share Posted March 8, 2017 Last 6 of the VIN and Ill see what I can do in the morn. Quote Link to comment https://www.bigmacktrucks.com/topic/49063-1996-ch613-crank-and-no-start/#findComment-363791 Share on other sites More sharing options...
qcwacojc Posted March 8, 2017 Author Share Posted March 8, 2017 Last 6 058621 whole vin 1m2aa18y3tw058621 Thank you Quote Link to comment https://www.bigmacktrucks.com/topic/49063-1996-ch613-crank-and-no-start/#findComment-363794 Share on other sites More sharing options...
Mackpro Posted March 9, 2017 Share Posted March 9, 2017 Here is the wiring for most all VMAC1 trucks. You will have to print them out and put them together. scan.pdf Quote Link to comment https://www.bigmacktrucks.com/topic/49063-1996-ch613-crank-and-no-start/#findComment-363859 Share on other sites More sharing options...
qcwacojc Posted March 9, 2017 Author Share Posted March 9, 2017 I will take a good look at it, Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/49063-1996-ch613-crank-and-no-start/#findComment-363907 Share on other sites More sharing options...
Mackpro Posted March 9, 2017 Share Posted March 9, 2017 I just opened it myself to view it and it was kinda hard to read unless you zoom in on it. If you need a better copy , let me know. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/49063-1996-ch613-crank-and-no-start/#findComment-363909 Share on other sites More sharing options...
qcwacojc Posted March 10, 2017 Author Share Posted March 10, 2017 Hey, That is exactly what I needed. Found problem right off the bat. Bad connection at the back of the fuse No 32 15 amp that powers the Bosch FIC module and the shut down relay. Thanks for your help Quote Link to comment https://www.bigmacktrucks.com/topic/49063-1996-ch613-crank-and-no-start/#findComment-363925 Share on other sites More sharing options...
qcwacojc Posted March 10, 2017 Author Share Posted March 10, 2017 Thanks again for your help. That diagram was it Quote Link to comment https://www.bigmacktrucks.com/topic/49063-1996-ch613-crank-and-no-start/#findComment-364005 Share on other sites More sharing options...
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