Troubleshooting a Hayes Air Utility Brake Control # HA10040 Installed on a 2000 International Truck
Question:
I have a 2000 international truck and the brake controller i just recently purchase is not working. can you help me out.
asked by: Jerel M
Expert Reply:
The Hayes Brake Controller # HA100400C is designed to allow trucks with air brakes to pull a trailer with electric brakes. Please note it is not compatible with electric-over-hydraulic trailer brakes. In a separate email I have forwarded the installation instructions for this product.
Installation requires that you tap into your truck airlines and provide your own 3-way tees and tubing from the truck manufacturer. You may also need a double-check valve (check with International using your VIN number). In addition to connecting to the air brake system on your 2000 International, there are also 3 wires that need to be connected. The blue wire will go back to the rear of your truck and attach to the brake controller circuit of your trailer connector. The black wire connects to a 12 volt power source. The red wire connects to the output side of the stop light switch with an in-line fuse of the same value as the tow vehicle existing stoplight circuit. It is critical that there be a good ground connection between the trailer connector and the truck chassis for the controller to operate properly. You might also refer to the linked article that covers the process of installing a brake controller.
I suggest you try to isolate the malfunction to your truck or trailer. Disconnect the tow vehicle from the trailer and apply a circuit tester like # PTW2993 to the pin on the truck trailer connector that carries the brake signal to your trailer. On a typical 7-way connector this will be the pin at the 5-o-clock position. (Please refer to the linked article that includes photos of trailer connectors showing the functions carried on the various pins). With an assistant pressing the truck brake pedal, test for a brake control signal on the appropriate pin. If you detect the correct signal, then the problem may be in your trailer.
Or if possible, try hitching your trailer to a different truck to see if the trailer brakes operate properly. You can also try the truck with a different trailer that has electric brakes as a way to isolate the problem to the truck or trailer.
You may also want to consider using a brake controller like the Prodigy P3 Brake Controller, # 90195. This brake controller is compatible with electric and electric-over-hydraulic systems and is very easy to use and set up. You can install this unit on your truck using the brake controller wiring kit # 5506.
To install the P3, you will need to find a dedicated stop light circuit and use a tester to find the wire that only has power when the brake pedal is pressed. Since your truck has air brakes, this switch may not be at the brake pedal where it is typically found on vehicles without air brakes. If you are unable to find the stop light switch, I recommend contacting International Trucks with your VIN and they may be able to tell you where you can find a dedicated stop light switch.
Products Referenced in This Question
Wiring Kit for 2, 4, 6, and 8 Brake Electric Trailer Brake Controllers
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Tekonsha Prodigy P3 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
- LCD Display
- Up to 360 Degrees
- Tekonsha
more information >
Product Page this Question was Asked From
Hayes Air Actuated Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Air to Electric
- Electric over Hydraulic
- Manual Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- Indicator Lights
- Up to 360 Degrees
- Hayes
more information >
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