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10-30-2016, 01:39 AM
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#1
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Member
Brand: Thor Motor Coach
Model: Tuscany 45AT
State: Illinois
Posts: 88
THOR #5822
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Driver seat adjustment not working
The driver seat adjustment on my Tuscany 45AT stopped working several weeks ago. Lucky for me it was in the right spot for me to drive.
Today I disconnected the switch terminal plug and checked for voltage on the two heavy gauge wires. No voltage present. I made the same check to the passenger seat wiring and measured 12 VDC on the same terminals.
I went to the relay/fuse compartment (driver side front compartment) and found the fuses for the cockpit seats. I swapped fuses and checked both seats. The passenger seat still worked, the driver seat was still non-functional.
The problem must be on the back of the fuse board (loose wire) or in the cable harness going through the floor to the driver seat base.
Has anyone else had this problem?
How did you solve it?
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10-30-2016, 03:06 PM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: Challenger 37KT
State: Texas
Posts: 235
THOR #1183
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Seat comes with pigtails - short wires. During installation the connection is made to house wires between hole in floor and seat. In our case wires to short and rotating seat 180 degrees for use when parked eventually pulled the connection apart. Look for that connection
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10-31-2016, 06:14 PM
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#3
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Member
Brand: Thor Motor Coach
Model: Tuscany 45AT
State: Illinois
Posts: 88
THOR #5822
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Driver seat adjustment not working - Loose wire connection in cable loop
Thanks for the guidance ...
I found a section of the cable underneath the seat that was wrapped in a velcro cover. I opened it up and discovered one of the two crimp connections had failed. I will buy new (better) connectors and repair it later tonight. I will try to attach a photograph for the benefit of any other RV'ers that might encounter this problem.
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10-31-2016, 06:33 PM
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#4
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Member
Brand: Thor Motor Coach
Model: Tuscany 45AT
State: Illinois
Posts: 88
THOR #5822
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Photo of failed wire connection
See attached file ..
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08-03-2021, 09:26 PM
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#5
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Junior Member
Brand: Thor Motor Coach
Model: Vegas 25.4
State: North Carolina
Posts: 2
THOR #24424
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Quote:
Originally Posted by mjdougherty
See attached file ..
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Do you still have that photo? I just bought my 2017 Vegas and have the same issue. First time RV'r here.
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08-03-2021, 09:51 PM
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#6
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,382
THOR #7035
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Quote:
Originally Posted by Hooked
Do you still have that photo? I just bought my 2017 Vegas and have the same issue. First time RV'r here.
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There was never any file/photo attached.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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08-04-2021, 02:17 PM
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#7
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Senior Member
Brand: Thor Motor Coach
Model: '17-Vegas 24.1
State: California
Posts: 2,227
THOR #13362
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Quote:
Originally Posted by Hooked
Do you still have that photo? I just bought my 2017 Vegas and have the same issue. First time RV'r here.
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Welcome to the Forum
Please describe your ‘17 Vegas driver’s seat issue.
That is, there were no OEM power seats included in the ‘17 model year
So if you’re having a power seat issue, then it’s an after-market seat
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'17 Vegas 24.1
Fallbrook, CA
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08-04-2021, 02:41 PM
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#8
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Junior Member
Brand: Thor Motor Coach
Model: Vegas 25.4
State: North Carolina
Posts: 2
THOR #24424
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Quote:
Originally Posted by taylorbob1
Welcome to the Forum
Please describe your ‘17 Vegas driver’s seat issue.
That is, there were no OEM power seats included in the ‘17 model year
So if you’re having a power seat issue, then it’s an after-market seat
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There is a black panel with switches on the right side of the driver's seat, it's supposed to move the seat up down, forward back etc. On the passenger's seat, these all work, on the driver's seat, none of the switches work.
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08-04-2021, 03:01 PM
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#9
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,382
THOR #7035
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Quote:
Originally Posted by Hooked
There is a black panel with switches on the right side of the driver's seat, it's supposed to move the seat up down, forward back etc. On the passenger's seat, these all work, on the driver's seat, none of the switches work.
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Sounds like a power supply problem. Did you break out the multimeter and check for 12 VDC to the controller?
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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08-04-2021, 03:06 PM
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#10
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Senior Member
Brand: Thor Motor Coach
Model: '17-Vegas 24.1
State: California
Posts: 2,227
THOR #13362
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Like I said, if your rig is a ‘17, then those are after-market power seats installed by the previous owner.
So you would need to discover the brand of the seat and contact the manufacturer for assistance.
Also, usually problems like that occur within the switch mechanism itself or a fuse that directs power to the seat.
If you feel comfortable using a Multimeter, you can atleast determine if there is power to the switch.
- If there’s power at the switch, then it’s possibly the switch contacts
- If there’s no power at the switch, then you need to back-track the line to find where it’s connected to the master 12v power, testing along the way
Let us know what you find if you decide to diagnose yourself
PS-admin Ted got to it before I could finish typing (haha)
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'17 Vegas 24.1
Fallbrook, CA
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08-04-2021, 03:29 PM
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#11
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 24F
State: Ohio
Posts: 4,184
THOR #16721
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Crimped wire connections in moving wire harnesses - if not done perfectly - are doomed to fail sooner or later. For sanity ALWAYS solder connections for reliability.
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08-04-2021, 06:31 PM
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#12
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Senior Member
Brand: Thor Motor Coach
Model: Forest River Forester 235
State: Indiana
Posts: 4,884
THOR #6826
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Quote:
Originally Posted by Chateau_Nomad
Crimped wire connections in moving wire harnesses - if not done perfectly - are doomed to fail sooner or later. For sanity ALWAYS solder connections for reliability.
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Soldered connections in a vehicle can fail as well because they are brittle. Better to learn to make good crimp connections. IMO
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08-05-2021, 06:39 PM
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#13
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Member
Brand: Thor Motor Coach
Model: Tuscany 45AT
State: Illinois
Posts: 88
THOR #5822
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Quote:
Originally Posted by mjdougherty
See attached file ..
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Here is the missing file. I have found it very difficult to find and then attach photos in this forum. Sorry for the long delay!
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08-05-2021, 08:00 PM
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#14
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Member
Brand: Thor Motor Coach
Model: Tuscany 45AT
State: Illinois
Posts: 88
THOR #5822
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IMHO, crimp connectors are designed to minimize costs in high speed production environments. In this application, where the seat rotates and moves up/down, the use of a crimp connection is a prescription for failure. I believe that the problem with my wiring was related to the quality of the connector AND the skill of the technician. My final solution was the use of lightly soldered connections and the proper size of twist-on connector for the heavy gauge wire. Before I put the wires back inside the Velcro jacket, I reinforced the connection by applying small 4" cable ties to the wires and the connectors to protect them from axial stress. See example photo...
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08-05-2021, 08:21 PM
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#15
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Senior Member
Brand: Thor Motor Coach
Model: '17-Vegas 24.1
State: California
Posts: 2,227
THOR #13362
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Glad you diagnosed and corrected the problem.
Like is previously said…that was an aftermarket install
Not Thor’s fault
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'17 Vegas 24.1
Fallbrook, CA
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02-08-2022, 12:32 AM
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#16
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Member
Brand: Thor Motor Coach
State: Massachusetts
Posts: 66
THOR #23697
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I had the same problem today. However, I had turned my seat and then it wouldn’t work. Uncovered all the connections everything ok. Went out side to my fuse panel and my 40 Amp for the drivers seat had blown. Replaced it now back working again. This forum really has helped me over the years for advice and clues to fix things.
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06-15-2022, 06:31 PM
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#17
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Member
Brand: Thor Motor Coach
Model: Tuscany 45AT
State: Illinois
Posts: 88
THOR #5822
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Quote:
Originally Posted by taylorbob1
Glad you diagnosed and corrected the problem.
Like is previously said…that was an aftermarket install
Not Thor’s fault
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Why would you say that? Aftermarket install? We ordered the 45AT from the factory and waited 5 months for delivery. There was no previous owner! Maybe a subcontractor installed them for Thor, but as far as I'm concerned these seats were OEM gear!
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06-15-2022, 09:55 PM
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#18
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Member
Brand: Thor Motor Coach
State: Massachusetts
Posts: 66
THOR #23697
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I had the same problem this past winter in my 45AT after checking everything under the seat I went to the fuse panel as you did. Luckily for me when I changed the fuse it was business as usual.
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06-15-2022, 09:57 PM
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#19
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Member
Brand: Thor Motor Coach
State: Massachusetts
Posts: 66
THOR #23697
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You are a great systematic trouble shooter!
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06-15-2022, 10:06 PM
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#20
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Senior Member
Brand: Thor Motor Coach
Model: Thor Ace 33.1
State: Illinois
Posts: 1,266
THOR #20274
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Quote:
Originally Posted by mjdougherty
Here is the missing file. I have found it very difficult to find and then attach photos in this forum. Sorry for the long delay! Attachment 32568
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You could use connectors with heat shrink on each end but the best would be to solder the wires with heat shrink over the joint
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