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Old 03-19-2018, 05:48 AM   #1
Brand: Thor Motor Coach
Model: Tuscany 38sq
State: California
Posts: 52
THOR #4598
Aft Camera Diagnosis Issue

I'm trying to validate information that was provided to my close friend. He has a 2015 Tuscany 40DX. The other day when he picked up his coach from a service provider that had been working on turn signals his aft, rear view, camera would not work. The left side and right side cameras worked fine. When he returned his coach to resolve the aft camera issue he was told that the problem was with his house batteries. Two of the four AGM house batteries would not hold a charge he was told. The service provider went on to say the left and right side cameras were powered by the chassis batteries and the aft camera is powered by the house batteries.

I find this explanation questionable, I accept the fact that I might be wrong but this explanation seems implausible to me. Even if the aft camera was powered singularly by the house battery system wouldn't the engine alternator likely provide sufficient power to operate the camera unless possibly 1 or more of the relatively new, less than 2 years old, AGM batteries is completely dead. Keep in mind that this coach never does any boon docking and the batteries are never stressed. The owner has even incorporated an after market battery shut-off switch for the house batteries as additional risk reduction.

Any technical commentary pertinent to this matter would be greatly appreciated. Thank you in advance.

Dave & Maggie
2019 Thor Tuscany 38sq
2014 Toyota Sienna with Remco Pump
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Old 03-19-2018, 06:15 AM   #2
Senior Member
Brand: Thor Motor Coach
Model: 2015 Vegas 25.2
State: Oregon
Posts: 911
THOR #2271
The best proof would be the wiring diagram. Have your friend call Thor with his VIN number. They will email him the wiring diagram.

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Old 03-19-2018, 12:33 PM   #3
Axis/Vegas Enthusiast
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Brand: Thor Motor Coach
Model: Axis 24.1
State: Michigan
Posts: 9,025
THOR #1150
Also use a voltmeter with the engine running..see if the house power system has 12+V.
2014 Thor Axis 24.1
2018 Chevy Bolt
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