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Old 05-31-2019, 06:28 PM   #1
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Workhorse Toad Tail light failure message

Hi,

My Workhorse UFO is generating alert "Tow Tail Light Failure" or something similar.

The toad brake lights, turn signal and rear lights are working.

Has anyone seen this alert before?

Thanks,
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Old 05-31-2019, 08:40 PM   #2
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Each time I have seen that message I had MH tail light burnt out. I don't think it monitors the tow car?
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Old 05-31-2019, 09:32 PM   #3
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Thanks Wayne, I will check if any of the MH tail lights are burnt out.

Coach is at the storage so will check it tomorrow.
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Old 06-01-2019, 07:27 AM   #4
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Forgot to say it only appears when the tow harness is connected.
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Old 06-13-2019, 05:32 PM   #5
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After some testing the alert only comes up after the toad is connected. Once I disconnect the toad and restart the alert does not appear.

The exact message is "Tow tail lamp fail". The issue is probably related to the toad wiring harness getting pinched while working on the bumper.

Will get it up on a lift at the weekend to check it out.
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Old 06-14-2019, 09:51 AM   #6
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Yah our UFO does the same thing. Nothing wrong.
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Old 06-14-2019, 05:11 PM   #7
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Thanks Mike,

That's good to know.

I am still going to put the Jeep on a ramp to check the wiring.
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Old 06-14-2019, 06:55 PM   #8
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After replacing RCCM have the same message. Talked with Jon Brazel and he informed me this is a requirement for Canadian units and program was supposed to be modified for US units to get rid of. Decided not to pay for someone to mod program so will live with it. Nothing wrong with your wiring so enjoy a bourbon for Fathers Day

Regards
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Old 06-15-2019, 04:00 AM   #9
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Thanks Lash,

I recall seeing this message every time I have towed but not the 1st tow. What's odd is the NSA Brake led is not activating anymore either, my wife can see it working during our tow checks.
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Old 06-16-2019, 06:18 PM   #10
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Quote:
Originally Posted by Lash View Post
After replacing RCCM have the same message. Talked with Jon Brazel and he informed me this is a requirement for Canadian units and program was supposed to be modified for US units to get rid of. Decided not to pay for someone to mod program so will live with it. Nothing wrong with your wiring so enjoy a bourbon for Fathers Day

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Hi Lash,

I am not sure what an RCCM is :-)

I did leave a message with Alan from Brazels but have not spoken on this yet. Will catch him tomorrow.
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Old 06-16-2019, 09:32 PM   #11
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RCCM = Rear Chassis Control Module
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Old 06-17-2019, 10:27 AM   #12
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Thanks Wayne,

All,

I spoke to Alan at Brazels and he explained the reason for this alert. It us caused by the Workshose Ecu picking up too low an amperage from the toad. He said if lights are working then all is fine.
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Old 06-20-2019, 11:43 AM   #13
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Got the message again today while not towing. Spoke to Alan again at Brazels he reckoned it it may something loose at the control module.
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Old 06-20-2019, 11:48 AM   #14
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If it is the RCCM, it is a real bear to get to. While mine was apart I cut a window in the metal cover and then covered it with a piece of metal that I can take on and off with 6 screws.
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