This Service Bulletin informs affected customers that due to the Actia's module internal circuit...
Mci technical service bulletin SB 398B for 2010-2012 Mci D4500, 2011-2012 Mci D4505 and 2012 Mci D4000.
- Bulletin number
- SB 398B
- Component
- Electrical system
- Summary
- This Service Bulletin informs affected customers that due to the Actia's module internal circuit characteristic the potential may exist in which both the high side and low side output of power management module (PMM)1 may be active at the same time for a very brief time. This may result in an electrical short on the low side output and intermittent loss of the ignition signal on model year 2010-2012 MCI D model coaches, and that MCI will remedy the affected coaches at no cost to the customers.
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