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Old 06-17-2016, 09:08 AM   #1
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No Taillights

2014 Coachman Prizm on Mercedes Sprinter chasis. No taillights or rear corner lights. Everything else is OK. Checked Coachman fuses and breakers in bedroom and Sprinter fuses under dash and driver seat (although none labeled for tail lights).

Any suggestions...thanks in advance

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Old 06-17-2016, 09:12 AM   #2
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It could be a bad ground connection if all fuses are O.K. Use a multimeter, test light or jumper wire with alligator clips to test.


Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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Old 06-18-2016, 06:23 PM   #3
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My RV is on the MB Sprinter chassis but is by Thor. I had the opposite failure, lost brake and turn signals on the rear. Still had clearance and running lights. Front lights worked normally.

My RV---The MB front lights are incandescent, both signal and marker. The motorhome rear lights are LED. Under the rear of the chassis there are 2 dummy load boxes (Matchbox size) to load the light circuits similar to incandescent bulbs. When my rear turn/brake lights failed it was a relay, not a fuse under the drivers seat that connected the coach to the chassis. Absent a wiring diagram from Coachmen, you might try making sure the relays are seated and tapping them to possibly get one to operate.

Good previous recommendation to check with a meter, start with checking for 12 volts for your taillights at the hitch connection.

And-- Welcome to IRV-2

Thor emailed wiring diagram the next day, hopefully Coachmen will respond.
Hooligan, Pensacola, Fl -U.S. Coast Guard 1956-1985
2016 Thor Siesta Sprinter 24ST diesel
Our Pug "Lily" & "George" the Newfoundland
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light, lights

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