2017 Ram 2500 BCM codes

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Darryl2136

Junior Member
Joined
Nov 4, 2025
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Location
Southern Oregon
Ram Year
2017
Engine
6.7 Cummins
I have a 2017 Ram 2500 that is throwing codes for both reverse lamps and both front fog lights. The truck was purchased a year and a half ago. The fog lights have not worked from the day I bought it. The reverse lights were switched to a reputable LED light. They work like normal. I am not experienced in tracking wiring issues. How do I go about starting and besides looking for the obvious wire breakage or corrosion? Where can I get a wiring diagram for my truck?
Codes are B170B-15 (Right Reverse lamp control- circuit short to battery or open)
B1707-15 (Left Reverse lamp control- circuit short to battery or open)
B16FB-15 (Front Right Fog lamp control- circuit short to battery or open)
B16F7-15 (Front Left Fog lamp control- circuit short to battery or open)
 

SitKneelBend

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Location
St. Louis
Ram Year
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I have a 2017 Ram 2500 that is throwing codes for both reverse lamps and both front fog lights. The truck was purchased a year and a half ago. The fog lights have not worked from the day I bought it. The reverse lights were switched to a reputable LED light. They work like normal. I am not experienced in tracking wiring issues. How do I go about starting and besides looking for the obvious wire breakage or corrosion? Where can I get a wiring diagram for my truck?
Codes are B170B-15 (Right Reverse lamp control- circuit short to battery or open)
B1707-15 (Left Reverse lamp control- circuit short to battery or open)
B16FB-15 (Front Right Fog lamp control- circuit short to battery or open)
B16F7-15 (Front Left Fog lamp control- circuit short to battery or open)

That site has wire colors/purpose
 

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