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Did you have all the other wires identified and they are connected to the Mictuning and there's still and "extra" red wire? At some point it's my guess you'll find something doesn't work...(rear camera power? TPMS module?)
Surprise the Furion REAR Camera works! (previously I called it back up camera, I meant rear view camera on back of trailer). It must be one of the 3 green running light wires coming from the trailer.
I can't think of any other thing we have that would run on that EXTRA RED Wire that was originially connected the the Left Turn/Brake seven pin post.
Brenda & Jay
2021 Imagine XLS 17 MKE
2021 Ford F150 3.5l ecoboost v6
Final resolution. Talked to a Grand Designs tech. He thinks the red wire was an extra and we should just cap it off. He said only the original wiring guy would know why it was there. Also said many differnt people work on wiring the trailers, one for brakes, one connects the junction box, another wires appliances etc. Interesting.
We're leaving on a big 8 week adventure to Canada. I'm happy to have a working left turn signal and brake light.
Brenda & Jay
2021 Imagine XLS 17 MKE
2021 Ford F150 3.5l ecoboost v6
2022 378MBS - No left turn signal or running lights with the very infrequent "Trailer Left Turn Lamps Fault Check Lamps" issue. I have attempted the following:
1. Checked all trailer fuses - GOOD
2. Had Ford check the 7-pin connector in the bed and on the bumper - GOOD
3. Purchased new 8ft cord and verified all connections (Ohmed out) - GOOD
4. Verified 12vdc at 7-pin cord to trailer black connectors - GOOD (13.4VDC)
5. Verified ground inside junction box - GOOD
From this forum - going to try:
1. Pulling left light to see if there is a bad connection.
2. Connect 12vdc power source to light to verify operation.
3. Pull coroplast down if 12vdc not at light
4. Check ground.
5. Look for "extra" red wire to cap off
Am I missing anything? Thanks.
Very Respectfully,
Tod, Ginny, Connor, Cullen, and Smokey
2020 Ford F450 Platinum
2022 GDRV Solitude 378MBS w/ GEN-Y Executive Torsion-Flex
haznavy Have you verified that Ford did the recall on the trailer module or verified that the truck does not need the recall?
I would suggest tapping a normal incandescent bulb into the system to see if the error goes away. Could be that the LED's and PWM are not playing well together.
Joseph
Tow Vehicle: 2024 GMC K3500 Denali Ultimate Diesel
Coach: 303RLS Delivered March 5, 2021
South of Houston Texas
haznavy Have you verified that Ford did the recall on the trailer module or verified that the truck does not need the recall?
I would suggest tapping a normal incandescent bulb into the system to see if the error goes away. Could be that the LED's and PWM are not playing well together.
Yes, I went to the Ford recall page and there isn't a recall listed for my 2020 F450. I used the Liteswich 2.0 to activate the trailer lights to make sure everything works, they do. I have verified alternating 12vdc voltage on the green wires at the junction box when the left turn signal is activated. I verified all connections and ground at junction box. Still no left side blinker or trailer marker lights. Problem seems to be downstream of the junction box. Scratching my head on this one.
Very Respectfully,
Tod, Ginny, Connor, Cullen, and Smokey
2020 Ford F450 Platinum
2022 GDRV Solitude 378MBS w/ GEN-Y Executive Torsion-Flex
haznavy have you confirmed power at the light? Also verify polarity (this is a big one on LED lights).
Problem turned out to be an open wire to the left turn signal above the axles, no fun to get to, and a Ford lighting module fault for the running lights. What a PITA to diagnose.
Very Respectfully,
Tod, Ginny, Connor, Cullen, and Smokey
2020 Ford F450 Platinum
2022 GDRV Solitude 378MBS w/ GEN-Y Executive Torsion-Flex
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