Troubleshooting PL and SH Error Codes on Trailer Brake Controller
Question:
ETRAILER, I am experiencing power loss code PL on brake controller when my brakes are applied or I get a 5H code. Tow vehicle is 09 RAM 3500 towing 2006 33ft 5th wheel. I suspect the cable and/or the molded 7way plug needing replacement. i still get the PL code when driving when plugged in either from the inside bed or bumper socket. I used a 7way test plug on each socket and I am seeing the brake signals from both when brakes are applied. Request suggestions. I am ready to replace the whole cable to the pinbox junction box. Thank you
asked by: Vince
Helpful Expert Reply:
The PL and SH fault codes can be found on Tekonsha controllers like the Prodigy P2 90885; the PL means there is a power interruption when you depress the brake pedal while the SH means the brake wire see a short during idle or that a test light might be causing this problem.
Since you're seeing both of these codes I recommend checking the ground for the controller and making sure it's securely connected to a clean, bare-metal surface and that the rest of your wiring is in good shape. If your truck came with a factory trailer connector then you would have likely used the Wring Adapter # 3020-P for the brake controller install but if the truck didn't come with factory trailer wiring then you would have installed a wiring kit like the # ETBC7.
Once you know what wire is the problem you can fix or replace it accordingly and that should solve the problem, but I don't think at this time you're going to need to change out wiring on your trailer.
Products Referenced in This Question
Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Dodge
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Plugs into Brake Controller
- Vehicle Specific
- Tekonsha
more information >
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Product Page this Question was Asked From
Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LED Display
- Up to 360 Degrees
- Tekonsha
more information >
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