Troubleshooting SH Error Code of Tekonsha Primus IQ Brake Controller

Question

Question:

The SH blinks on my controller even when nothing is hooked up?

asked by: Glenna G

0

Expert Reply:

The SH error code of the # TK90160 means it's detecting a short. This is going to be on the power cable of the controller which is the black wire.

expert reply by: Jameson C

0

Answer 1

Both the OL (overload) and SH (short) error messages on your Tekonsha Primus IQ Trailer Brake Controller #TK90160 tend to suggest that either your trailer has too many brakes for the controller (6 are the maximum) or that there is a problem in your…

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Answer 2

The NC on your Tekonsha Primus IQ Brake Controller #TK90160 is simply showing power to the brake controller without a trailer connected. It should do this and display for a 15 seconds before going away. The NC means the brake controller is seeing no…

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Answer 3

Without knowing what brake controller you have I will venture to guess that the OL code you are seeing is an over load code. The OL or overload error code indicates a short in the brake output circuit. Start by examining the trailer connector. Make…

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Answer 4

The first error code, SH, you are seeing on the Prodigy Brake Controller (instructions linked below) means the brake wire sees a short circuit during idle condition. The second code, OL, indicates an overload condition during operation. For the first…

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Answer 5

All the brake controller needs to sense a trailer connection so that you can test it is a slight amperage draw on the output circuit. For that you can use a circuit tester like the part #PTW2993 with one pin grounded and the other on the output pin.…

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Answer 6

There are 4 possible reasons why the Tekonsha Primus, #TK90160, is telling you N.C. 1. Trailer not connected to tow vehicle. 2. Trailer connected with open circuit on brake line. 3. Trailer connector disconnected or corroded. 4. Loss of trailer brake…

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Answer 7

The PL error code on the Primus brake controller #TK90160 indicates that power is interrupted when stepping on the brake pedal. Check the connection of the red wire. It should be attached to the brake switch wire that has power only when the brake…

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Answer 8

You can test your Tekonsha Primus Trailer Brake Controller #TK90160 without the trailer connected by applying a circuit tester like #PTW2993 to the 7-way socket on the vehicle while a helper activates the controller's manual override lever. You…

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Answer 9

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 10

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 11

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 12

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Troubleshooting SH Error Code of Tekonsha Primus IQ Brake Controller

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