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Old 11-27-2014, 06:40 PM   #1
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Join Date: Oct 2014
Location: Northern California
Posts: 1
SH Warning Light on Tekonsha Prodigy Brake Controller # 90185 Mean

Hi All..Happy Turkey Day

I am having an issue with my brake controller (Tekonsha Prodigy) and am looking for some feedback for a fix as I it is the eve of a camping trip.

Currently I will be driving and an SH warning comes up, sometimes it is blinking and will change to PL when I hit the breaks, but it doesn’t seem that the trailer is breaking until I manually ease the break controller.

I have looked at the connector and there seems to be nothing obvious going wrong, I have checked all of my fuses (don’t know if this would have an effect on anything) and all is clear. I have read on some other boards about checking wiring for any fraying, which I have and all seems to be clear.

I am heading out tomorrow and feel ok with it as I can manually break the trailer, but want to know if I should be concerned or if there is a clear fix for this.

Happy Turkey Day!
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Old 11-27-2014, 07:39 PM   #2
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Join Date: Jul 2014
Location: Modesto
Posts: 14,365
Welcome to the forum

Here is a link that might explain your issue. If it were me, I wouldn't move the trailer any further than needed.

The SH means the controller is seeing a short in the brake system

Another link:

2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.

Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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Old 11-27-2014, 07:47 PM   #3
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Location: Here
Posts: 313
sh = short circuit in brake wiring, check for frayed/worn insulation in the brake wiring.
pl = power loss, may be related to the short circuit.
2012 Passport GT 3100RK
Previous Campers:
2010 Trailmanor 2720SL
2003 R-Vision Traillite
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Old 11-29-2014, 04:42 AM   #4
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Location: Germantown, TN
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The only time we had the same problem with our controller the end result was that the trailer brakes had worn down and the shoes were digging into the brake drums on two units. The trailer repair shop couldn't explain why it sent that code, but that was the reason. $800 later all was well, including larger brake shoes and all new drums.
Jim in Memphis
Wife of 49 years is Brenda
2019 F450 6.7 Powerstroke
2017 Mobile Suites 40RSSA
2015 26TBUD Salem Forest River (For Alaska Trip)
2001 Road king w/matching Harley sidecar
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brake controller issues, trailer brake

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