Troubleshooting P2 Wiring on 2006 Ford F-650 with Air Brakes and Commercial 7-Pin Trailer Connector
Question:
I have a 2006 F650 with air brakes and it has a factory trailer harness with a commercial 7 pin trailer connector. I ordered and installed a Tekonsha P2 and an Adapter to swap from 7 pin to 7 blade for an RV trailer. I ran the blue wire from the controller harness to the commercial connector and spliced at the 5 o’clock wire....looking at it from the front. This wire was yellow. I am not getting any indication of brake on the controller when the brakes are applied. I have the red wire tapped into the brake pressure switch. This works only because I know my third brake light activates with the same wire. What am I missing?
asked by: Dave
Expert Reply:
If you have the 7-pin heavy duty connector, you need to make sure the brake controller is on the center pin and not the 5 o'clock position like the 7-way RV standard. The 7-pin and the 7-blade have different locations for functions, that your adapter takes into account. You will want to add the P2 # 90885 output to the correct location. I've attached a photo to assist.
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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