Ford Trailer Brake Controller 2005 excursion
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5th Wheeling
Joined: Oct 2007
Posts: 47
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From: Texas
Ford Trailer Brake Controller 2005 excursion
Folks,
I am just playing with the idea of using a 5C34-2C006-AH integrated brake controller in the X. It looks like I would have to switch to the 06 F250 master cylinder with the pressure transducers. Does this controller really need to be on the CAN buss? constant and switched 12v is no issue. Where does the current feedback come into play? Is there a shunt somewhere?
I am just playing with the idea of using a 5C34-2C006-AH integrated brake controller in the X. It looks like I would have to switch to the 06 F250 master cylinder with the pressure transducers. Does this controller really need to be on the CAN buss? constant and switched 12v is no issue. Where does the current feedback come into play? Is there a shunt somewhere?
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Joined: Jan 2001
Posts: 56,973
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From: Virginia
What stands out to me looking at these diagrams, your dash buttons where you set the gain and manually apply the trailer brakes are not in the diagrams. That tells me they are communicated over the network. Here is a description of how it works below, an they also mention the engine computer and the abs system are tied into it too somehow. And you would also not have the little display in the instrument cluster telling you gain for the trailer system.
The trailer brake control system consists of the following components:
The TBC module applies the brakes of the trailer for shorter stopping distances and to increase control of the vehicle during braking. The TBC module accomplishes this by monitoring vehicle brake inputs and information from the ABS module and PCM. When the TBC determines that trailer braking is required, a Pulse Width Modulated (PWM) voltage, that is proportional to the brakepressure of the towing vehicle, is sent to the trailer. The trailer brake control system will only work with trailers that are equipped with electric-actuated brakes.
The TBC module has the following driver inputs and outputs:
The manual slider switch on the TBC module is used to active the trailer brakes independently from the vehicle brakes. The manual slider is used in conjunction with thegain buttons to adjust and set the trailer brakes. When the manual lever is activated with a trailer connected to the vehicle, the trailer stoplamps and the vehicle stoplamps (except the center high mount stoplamp) will illuminate. Activating themanual lever without a trailer connected to the vehicle will still illuminate the vehicle stoplamps (except the center high mount stoplamp).
The gain buttons are used to set the TBC system for specific towing conditions such as trailer load, vehicle load, road conditions and weather. The gain is normally setto provide maximum trailer braking while maintaining trailer stability. For information on setting the trailer brake gain, refer to the Owner's Literature.
The displays are used to provide the driver with TBC system information. Trailer connectivity is provided through the trailer connector icon, the gain setting displayprovides the driver with the current gain setting and the output bar graph shows the amount of power going to the trailer brakes relative to brake pedal or manual lever input (only if a trailer is connected to the vehicle).
The trailer brake system is normally installed at the assembly plant, however the system can be installed at the dealership. If the system is installed at the dealership, the IC must be reconfigured to communicate with the TBC module.
Auxiliary Brake System — Trailer Brake Control (TBC) Module
Trailer Brake Control SystemThe trailer brake control system consists of the following components:
- Trailer Brake Control (TBC) module, which is mounted in the center of the instrument panel just below the climate controls
- Brake pressure transducer, which is mounted on the underside of the master cylinder toward the rear of the vehicle
- Brake Pedal Position (BPP) switch, also know as the stoplamp switch and is mounted on the brake pedal assembly. For additional information on the stoplamp switch, refer to Exterior Lighting.
- Brake pressure switch (also known as the speed control deactivation switch), which is mounted on the underside of the master cylinder toward the front of the vehicle. For additional information on the speed control deactivation switch, refer to Speed Control.
- ABS module, mounted on the LH side of the engine compartment next to the brake master cylinder
- PCM, mounted on the RH side of the bulkhead in the engine compartment
- Instrument Cluster (IC)
- Instrument Cluster (IC)
- PCM, mounted on the RH side of the bulkhead in the engine compartment
- ABS module, mounted on the LH side of the engine compartment next to the brake master cylinder
- Brake pressure switch (also known as the speed control deactivation switch), which is mounted on the underside of the master cylinder toward the front of the vehicle. For additional information on the speed control deactivation switch, refer to Speed Control.
- Brake Pedal Position (BPP) switch, also know as the stoplamp switch and is mounted on the brake pedal assembly. For additional information on the stoplamp switch, refer to Exterior Lighting.
- Brake pressure transducer, which is mounted on the underside of the master cylinder toward the rear of the vehicle
The TBC module applies the brakes of the trailer for shorter stopping distances and to increase control of the vehicle during braking. The TBC module accomplishes this by monitoring vehicle brake inputs and information from the ABS module and PCM. When the TBC determines that trailer braking is required, a Pulse Width Modulated (PWM) voltage, that is proportional to the brakepressure of the towing vehicle, is sent to the trailer. The trailer brake control system will only work with trailers that are equipped with electric-actuated brakes.
The TBC module has the following driver inputs and outputs:
- Manual slider switch (input)
- Gain buttons (input)
- Gain setting display (output)
- Trailer connectivity icon (output)
- Output bar graph display (output)
- Output bar graph display (output)
- Trailer connectivity icon (output)
- Gain setting display (output)
- Gain buttons (input)
The manual slider switch on the TBC module is used to active the trailer brakes independently from the vehicle brakes. The manual slider is used in conjunction with thegain buttons to adjust and set the trailer brakes. When the manual lever is activated with a trailer connected to the vehicle, the trailer stoplamps and the vehicle stoplamps (except the center high mount stoplamp) will illuminate. Activating themanual lever without a trailer connected to the vehicle will still illuminate the vehicle stoplamps (except the center high mount stoplamp).
The gain buttons are used to set the TBC system for specific towing conditions such as trailer load, vehicle load, road conditions and weather. The gain is normally setto provide maximum trailer braking while maintaining trailer stability. For information on setting the trailer brake gain, refer to the Owner's Literature.
The displays are used to provide the driver with TBC system information. Trailer connectivity is provided through the trailer connector icon, the gain setting displayprovides the driver with the current gain setting and the output bar graph shows the amount of power going to the trailer brakes relative to brake pedal or manual lever input (only if a trailer is connected to the vehicle).
The trailer brake system is normally installed at the assembly plant, however the system can be installed at the dealership. If the system is installed at the dealership, the IC must be reconfigured to communicate with the TBC module.
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