View Full Version : Reverse lights - Bad connection somewhere

04-20-2016, 04:11 AM

The reverse lights on our 2008 have stopped working for the most part. When the van is put into reverse, the lights will only occasionally flash on, and I do mean flash. They won't stay on for any longer than about 0.2 seconds. This is consistent with both the driver and passenger side.

I read on another thread here that the wires from the left and right tail lights all come together somewhere in the driver side footwell. From there I am unclear on where the signal comes from. Is there actually a switch in the gearshift assembly? Or would the 12 volts originate from a relay somewhere, or the computer? This parts diagram (http://www.moparpartsoverstock.com/showAssembly.aspx?ukey_assembly=917074&ukey_make=1095&ukey_model=15977&modelYear=2008&ukey_category=22704&ukey_driveLine=9224&ukey_trimLevel=20380) shows two wiring harnesses to the gearshift, but no switch. It would suck to have to buy the whole shifter.

Another suggestion I read here has to do with corroded relays in the trailer wiring harness. This sprinter has no such harness that I can find.

Any brilliant ideas?

05-03-2018, 01:08 AM
Hey, I'm having the same issue! Any updates on what went wrong with yours?

05-03-2018, 02:37 AM
There is a 2007 wiring diagram (close enuf for you...) here: http://diysprinter.co.uk/reference/07_Wiring-sprinter-2500.pdf
(and lots more stuff at http://diysprinter.co.uk/reference/ too... snoop around)