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Old 06-11-2020, 12:10 AM   #1
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Brand: Thor Motor Coach
Model: Axis 24.1
State: Missouri
Posts: 7
THOR #17907
Question AXIS 24.1 Electrical Schematic

1. 1. Does anyone have a basic schematic of the 12 v. system that includes coach and chassis batteries, BIM, latching relay, breakers, generator, chassis alternator, fuses, terminals, and other components? I have asked Thor who sent several schematics that look like chassis harness drawings and bussmann chassis distribution box which are of little use to me.


2. 2. While trouble shooting my BIM, I disconnected the wires from both main terminals. However, there is a small fused wire that connects to one of the Bat-A or Bat-B terminals. I am not sure which one (due to memory lapses - I should have taken a picture before starting…). Anyone know which terminal that small yellow wire goes to?

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Old 06-11-2020, 12:25 AM   #2
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Contact Thor. The diagrams are proprietary and cannot be shared without Thor’s written permission.
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Old 06-11-2020, 12:57 AM   #3
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Model: ACE 27.1
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Thor's "schematics" are not true schematics, more like combination schematic/wiring diagram.

Here's the PDF for the BIM which contains a wiring schematic and may help you. I suspect your yellow wire should go to the SIG terminal to allow the emergency start switch to tie the battery banks together.
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Old 06-11-2020, 01:24 AM   #4
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Brand: Thor Motor Coach
Model: Axis 24.4
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Have your VIN handy and go to the owner resources page on Thors website. You'll be able to download a whole bunch of info on your specific coach.
https://www.thormotorcoach.com/owner-resource/
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Old 06-11-2020, 02:15 AM   #5
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Brand: Thor Motor Coach
Model: Axis 24.1
State: Missouri
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Thank you for the info. Have looked at the information on the THOR page for my vehicle - not much on details for the electrical systems. Have also contacted THOR reps but they could not provide what I'm looking for. By the way, the yellow wire goes to Bat-B (Coach) battery terminal and is for the switch for emergency start that cross connects the batteries.
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