Pierce apparatus equipped with Command Zone multiplexing uses the cab power distribution area for...
Pierce technical service bulletin SB_715 for 2000-2011 Pierce Custom Contender and 2000-2006 Pierce Custom Chassis.
- Bulletin number
- SB_715
- Component
- Electrical system
- Summary
- Pierce apparatus equipped with Command Zone multiplexing uses the cab power distribution area for determining the vehicle system voltage. However, because of voltage drop between the batteries and the cab distribution area, this is not a true representation of actual system voltage. To improve the accuracy of the Command Zone voltage gauge, a 10/2 harness will be run from the right-side battery box to Output module #1 (or Input Module #1 if Output module is not present on apparatus). This will provide a more accurate voltage input to the module responsible for populating the voltage gauge value.
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