Problem with my Ford TBC
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Laughing Gas
Joined: Aug 2018
Posts: 934
Likes: 248
From: CA
Problem with my Ford TBC
I have been chasing a problem with my factory installed trailer brake controller. When I apply the manual slider I get a rapid pulsing of the brakes and brake lights.
I tested the truck with a know good controller and it did the same thing, and I test the controller in a good truck and it worked normally.
I was wondering if anyone else has had a similar issue?
The code i was anle to pull from the TBC was C2803, pressure transducer.
I tested the truck with a know good controller and it did the same thing, and I test the controller in a good truck and it worked normally.
I was wondering if anyone else has had a similar issue?
The code i was anle to pull from the TBC was C2803, pressure transducer.
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Laughing Gas
Joined: Aug 2018
Posts: 934
Likes: 248
From: CA
Thanks, I did check #12, along with every other fuse that deals with brake lights, turn signals, and the TBC.
I went through the WSM for the C2803 which is Pinpoint Test C for the auxiliary brakes. By following the test tree looks like i need a new master cylinder. Damn. Has anybody else been down this road?
I went through the WSM for the C2803 which is Pinpoint Test C for the auxiliary brakes. By following the test tree looks like i need a new master cylinder. Damn. Has anybody else been down this road?
Fleet Owner
Joined: Nov 2003
Posts: 27,885
Likes: 3,599
Possible.
Do you remember the module that threw that code though - the scan tools will show that.
I ask because a network communications issue (U1900) with the ABS module can cause the code you posted earlier to be in the TBC module, and cause the behavior you describe.
Do you remember the module that threw that code though - the scan tools will show that.
I ask because a network communications issue (U1900) with the ABS module can cause the code you posted earlier to be in the TBC module, and cause the behavior you describe.
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Laughing Gas
Joined: Aug 2018
Posts: 934
Likes: 248
From: CA
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Fleet Owner
Joined: Nov 2003
Posts: 27,885
Likes: 3,599
Well, I'm stumped. Sorry. It clearly isn't the TBC module though - at least I wouldn't think so if it works fine in another truck.
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Fleet Owner
Joined: Nov 2003
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There are several aftermarket solutions for a brake master cylinder if you feel its replacement truly is necessary.
https://www.rockauto.com/en/parts/fo...+cylinder,1836
Personally, I would call up AutoNation White Bear Lake, ask for Internet sales, and see if they couldn't track on down for you.
https://www.rockauto.com/en/parts/fo...+cylinder,1836
Personally, I would call up AutoNation White Bear Lake, ask for Internet sales, and see if they couldn't track on down for you.
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