Troubleshooting E9 Code That is Displayed on Primus IQ Brake Controller # TK90160
Updated 03/29/2018 | Published 03/28/2018
Question:
E9 is displayed on my Primus IQ Brake Controller What does that mean? And how do I get rid of it?
asked by: Stewart A
Expert Reply:
I believe I have highlighted the "E9" code you are referring to on your Primus IQ Brake Controller # TK90160 in the attached picture from the installation instructions.
The probable cause is that the trailer is connected and the brake controller loses connection to the battery ground. To remedy this you simply need to check your ground connections and make sure they are all secure and connected to a clean, bare-metal surface. Even some paint can cause an issue. Be sure to check the ground from the brake controller as well.
I have attached a link to the installation details for you to check out. Let me know if this doesn't fix your problem and I can help you troubleshoot further.
Product Page this Question was Asked From
Tekonsha Primus IQ Trailer Brake Controller - Up to 3 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Splice-In
- Under-Dash Box
- Under-Dash
- Up to 3 Axles
- LED Display
- Single Trailer Only
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Video: Ultimate Overview of the Replacement Spring for Ram Sleeve Lock Couplers
- Shop: Replacement Spring for Ram Sleeve Lock Couplers - 7,000 lbs and 12,500 lbs
- Q&A: Tekonsha Primus IQ has Codes b, b1, b2, and b3 Instead of c, b1, b2, and b3 for a 2007 Toyota Tacoma
- Q&A: Instructions Manual for Tekonsha Primus IQ Trailer Brake Controller
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Brake Controller Installation: Starting from Scratch
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Trailer Wiring Diagrams
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Q&A: Parts Needed To Install Trailer Hitch, 7-Way And Brake Controller On 2018 Chevy Express 3500 Van
- Q&A: Primus IQ Brake Controller Wiring Functions
- Q&A: What is the Difference Between the Tekonsha Prodigy P2 and the P3 Brake Controllers
- Q&A: Parts Needed to Add 7 Way Connector to 2013 Ford F-150 XL
- Article: Parts Needed to Add Electric Drum Brakes to a Trailer
- Article: How to Adjust Your Trailer Brakes | The Ultimate Guide