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chopstyx
Active Member
14 Posts |
 Posted - 01/06/2011 : 10:01:31 AM
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Unknown codes SID 110 FMI 04 , SID 110 FMI 02
HAVING HARD START/ NO START PROBLEMS
Code 421,428 Low side to high side open
Code 525 as inj driver circuit fault "M"
I already changed out IDM relay
It seems as the buses where left out and not running for two weeks
the same problems on these!
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districtU46
Active Member
USA
24 Posts |
Posted - 01/06/2011 : 12:42:20 PM
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| Some of our VT365's have had the code 525 with only some injectors having low to high side open before.. I'll bet good money you checked the main power and grounds and yadda yadda yadda...some times the three wire connector that gives the IDM power right by the starter maybe the cause or the last bus we had with the code 525 was a problem with The IDM itself, weather it be an internal short or whatever... Once you exhausted all options and can't find why 525 is active..I'd say have the IDM replaced! |
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Bassman
Top Member
USA
558 Posts |
Posted - 01/07/2011 : 02:45:28 AM
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| Check the entire electrical path from the batteries to the IDM relay closely. The smart thing to do is feel them all when the bus has been running a while to check for heat at the connections. We have been having a lot of problems with the harnesses at the batteries (the connections at the harness that was recalled before), the next harness forward, and the IDM relay base. We have also had several bad IDM's lately too. The ones we have had lately are having a hard start, or lighting a check engine light when the bus is started, but the bus is running OK. After a while, the light goes out. |
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sambrutay
Advanced Member
United States
271 Posts |
Posted - 01/07/2011 : 04:50:12 AM
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| we have 182 buses with the VT365. Suspect every wiring connection in the IDM circuit. Also the IDM. We melt the IDM relay wiring alot @ the connector also. JUNK! Its bad when your drivers feel more secure driving a sub bus thats a 1990 thru 1995 model than a 2005/2006 with a VT under the hood. |
Bruce |
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chopstyx
Active Member
14 Posts |
Posted - 01/07/2011 : 04:55:07 AM
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Ran voltage check at idm relay, ran voltage drops on wiring. starts on either, check engine light on at cold start, then goes off when warm.
checked imd base, one day shot, Idm bad, is warranty time! |
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districtU46
Active Member
USA
24 Posts |
Posted - 01/07/2011 : 12:45:23 PM
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| Sweet!... ha ha get as much as u can and keep sucking up the warranty as much as you can.. the VT365's can be HORRIBLE! |
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chopstyx
Active Member
14 Posts |
Posted - 01/10/2011 : 05:45:01 AM
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| They extended the warranty for the next ten years, noe that's SWEEEEEETTTTT |
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Topic |
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ic codes ?
