so i just finished doing the RLS retrofit on my 2003 ZHP. i had the windwhield replaced with the updated prism holder. I got a RLS sensor from a 2002 E46 M3 parts car I bought along with the Automatic headlight LCM face plate to.
i wired up the 4 wires for the RLS sensor properly using info form several DIYs. basically:
http://forum.e46fanatics.com/showthread.php?t=759844
4 wires: brown=ground, purple=power, white/red=kbus(tap into any of them), green/brown=Pin #45 in the GM5 54 pin plug
I used NCS Export to mark the Rain sensor as ACTIVE in the GM5/ZKE module.
I fired up INPA and the RSL sensor (while attached to the prism) throws an error in INPA saying it can not communicate
when I remove the RLS from the prism and then the car off and turn it back on, the RLS sensor communicates and I can read the statrus and shine a light in it which shuts off my headlights.
if I put it back in the prism with the car still on, and shine a light through the prism, it still works.
as soon as I shut the car off and back on, the RLS sensor does not work anymore and doesnt communicate with INPA.
I have to remove it from the prism again, shut car off and back on and it works again.
it makes 0 sense and its not a wiring issue. its something with the prism.
my RLS sensor is part # RLS 6 920 044 and it is a 2001 model sensor.
i looked on ebay for E46 RLS sensor and thats not a common one found and most of them that come up are:
RLS 6 923 954 and have 2002-2004 dates.
Im thinking that my RLS sensor is too old to work properly with my GM5 module or something.
I was hoping ti see if anyone has factory RLS in their ZHPs and can tell me what their part number on the module says?
or maybe someone knows what the heck is going on lol.