DTC CODE U0185 Code -No amp trigger
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Joined: Mar 2021
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From: Plymouth, Minnesota
DTC CODE U0185 Code -No amp trigger
I just installed new Neo 690 6 x 9's in my system. During the install two DTC codes popped up U0185 and U186. The detail for the code is a "fail to communicate with amp 1 and amp 2". The DTC faults will not clear. I am also no longer getting 12 volts to my blue and white amp trigger so my DSR1 and amps are not turning on anymore.
This is on a 2019 CVO Street Glide with two aftermarket amps using the original Harley Wires with Rockford amp bypasses installed. The Sound Design 400.2 is running the new rear Neo 690 6 x9's and in front is a DS18 1600.4 running the front Ground Zero Yellow Baskets in the upper and lower fairings. So it is a 6 speaker , two amp setup on an American Hardbags DSR1 T-Harness. I am getting 14 volts at both amps. The DSr1 was pulled out and bench tested and is functioning. It is accepting programming just fine while connect to a laptop by usb. I updated the DSr1 firmware and software including the Bluetooth update. The system was actually running fine after the speaker install but I had a turn off pop and was attempting to troubleshoot that issue when the DTC codes popped up and I lost communication between the amps, DSr1 and the radio. As near as I can tell I am not receiving the startup signal from the CANBUS system from the radio / head unit. The head unit plays fine using a wireless headset. I did make sure the head unit was set to speakers.
Anyone have any ideas? I did a hard reset on the BCM by disconnecting power and ground at the battery for a few hours. Reconnected but no change. I reset the head unit / radio. Again no change. Again I am not getting 12 volt to the blue and white trigger wire on start up. I also jumped each amp to 12 to 14 volts and each fires right up when voltage is applied directly.
Any suggestions would be welcome... thanks in advance.
This is on a 2019 CVO Street Glide with two aftermarket amps using the original Harley Wires with Rockford amp bypasses installed. The Sound Design 400.2 is running the new rear Neo 690 6 x9's and in front is a DS18 1600.4 running the front Ground Zero Yellow Baskets in the upper and lower fairings. So it is a 6 speaker , two amp setup on an American Hardbags DSR1 T-Harness. I am getting 14 volts at both amps. The DSr1 was pulled out and bench tested and is functioning. It is accepting programming just fine while connect to a laptop by usb. I updated the DSr1 firmware and software including the Bluetooth update. The system was actually running fine after the speaker install but I had a turn off pop and was attempting to troubleshoot that issue when the DTC codes popped up and I lost communication between the amps, DSr1 and the radio. As near as I can tell I am not receiving the startup signal from the CANBUS system from the radio / head unit. The head unit plays fine using a wireless headset. I did make sure the head unit was set to speakers.
Anyone have any ideas? I did a hard reset on the BCM by disconnecting power and ground at the battery for a few hours. Reconnected but no change. I reset the head unit / radio. Again no change. Again I am not getting 12 volt to the blue and white trigger wire on start up. I also jumped each amp to 12 to 14 volts and each fires right up when voltage is applied directly.
Any suggestions would be welcome... thanks in advance.
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Joined: Aug 2014
Posts: 2,843
Likes: 574
From: Lockport Illinois
I just installed new Neo 690 6 x 9's in my system. During the install two DTC codes popped up U0185 and U186. The detail for the code is a "fail to communicate with amp 1 and amp 2". The DTC faults will not clear. I am also no longer getting 12 volts to my blue and white amp trigger so my DSR1 and amps are not turning on anymore.
This is on a 2019 CVO Street Glide with two aftermarket amps using the original Harley Wires with Rockford amp bypasses installed. The Sound Design 400.2 is running the new rear Neo 690 6 x9's and in front is a DS18 1600.4 running the front Ground Zero Yellow Baskets in the upper and lower fairings. So it is a 6 speaker , two amp setup on an American Hardbags DSR1 T-Harness. I am getting 14 volts at both amps. The DSr1 was pulled out and bench tested and is functioning. It is accepting programming just fine while connect to a laptop by usb. I updated the DSr1 firmware and software including the Bluetooth update. The system was actually running fine after the speaker install but I had a turn off pop and was attempting to troubleshoot that issue when the DTC codes popped up and I lost communication between the amps, DSr1 and the radio. As near as I can tell I am not receiving the startup signal from the CANBUS system from the radio / head unit. The head unit plays fine using a wireless headset. I did make sure the head unit was set to speakers.
Anyone have any ideas? I did a hard reset on the BCM by disconnecting power and ground at the battery for a few hours. Reconnected but no change. I reset the head unit / radio. Again no change. Again I am not getting 12 volt to the blue and white trigger wire on start up. I also jumped each amp to 12 to 14 volts and each fires right up when voltage is applied directly.
Any suggestions would be welcome... thanks in advance.
This is on a 2019 CVO Street Glide with two aftermarket amps using the original Harley Wires with Rockford amp bypasses installed. The Sound Design 400.2 is running the new rear Neo 690 6 x9's and in front is a DS18 1600.4 running the front Ground Zero Yellow Baskets in the upper and lower fairings. So it is a 6 speaker , two amp setup on an American Hardbags DSR1 T-Harness. I am getting 14 volts at both amps. The DSr1 was pulled out and bench tested and is functioning. It is accepting programming just fine while connect to a laptop by usb. I updated the DSr1 firmware and software including the Bluetooth update. The system was actually running fine after the speaker install but I had a turn off pop and was attempting to troubleshoot that issue when the DTC codes popped up and I lost communication between the amps, DSr1 and the radio. As near as I can tell I am not receiving the startup signal from the CANBUS system from the radio / head unit. The head unit plays fine using a wireless headset. I did make sure the head unit was set to speakers.
Anyone have any ideas? I did a hard reset on the BCM by disconnecting power and ground at the battery for a few hours. Reconnected but no change. I reset the head unit / radio. Again no change. Again I am not getting 12 volt to the blue and white trigger wire on start up. I also jumped each amp to 12 to 14 volts and each fires right up when voltage is applied directly.
Any suggestions would be welcome... thanks in advance.
If you have remove the oem boom amps you should have the headunit flashed for no boom amps.
The canbus system is looking for the amps and since they have been removed it will keep throwing the BCM codes.
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Joined: Mar 2021
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From: Plymouth, Minnesota
The blue and white remote is coming from the T-Harness which originates from the head unit / radio. After the Boom Amps were removed several years ago the bike was re-flashed to 6 speakers + two amp configuration using a Techno tool.
Stellar HDF Member
Joined: Aug 2014
Posts: 2,843
Likes: 574
From: Lockport Illinois
To eliminate the AMP COMMUNICATION codes is to reflash bike to the soundz flash so the BCM isn't looking for the amps.
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ThaGlyde
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