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Old 04-21-2021, 07:21 AM
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Overboost Overboost is offline
//Binary is in my DNA
Join Date: Apr 2006
Location: Huntersville, NC
Posts: 3,244
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I retrofitted the RLS system on my E46 and it is really easy. The RLS only needs 4 wires but you will need a new windshield, RLS with mirror cover, the switch you already acquired, make a 7 ft 4 wire harness and code the car for RLS.

RLS pin 1 (KLR power) Fuse 15 (mine was empty) (violet)
RLS pin 2 (ground) empty connection on ground strip module above fuse box (brown)
RLS pin 3 (k-bus) empty connection on K Bus strip module above fuse box (white/red/yellow)
RLS pin 4 (wiper motor signal) X253 GM5 pin 45 (brown/green)

Here is the link to my E46 retrofit.
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