WhiskeyTango

Hello everyone,
My first post in rennlist for my first 911. I purchased this 911 C2S 2 months ago with 45K miles. On the weekend, I bought iCarsoft CR MAX, ran scans, and found many errors related to PCM. This is quite expected since I added an Isudar PCM 3.1 Apple Carplay module to modernize the old PCM 3.1. I cleared all codes, but a few persisted.

Here are the codes:
Passenger's door - 084D Implausible signal - Inner door handle switch, continuous actuated.
Front-end electronics - C12091 active/static - Check door control unit fault mem, content, driver.
Rear-end electronics - C12091 Active/static - Check door (driver) control unit fault. content.
Driver's door - 084D Implausible signal - Inner door handle switch, continuous actuated.
Passengers door- 084D Implausible signal - Inner door handle switch, continuous actuated.

It's probably related, but here is what I found out from researching before buying the iCarsoft. The driver door window switch has a top button for folding mirrors that does not work. When I bought the car, I figured I would go to FCP Euro or Suncoast and buy the replacement windows switch module. I went online left my vin and made the purchase. A couple of weeks later a different switch module without the top folding mirror button shows up. I called Suncoast, thinking they sent me the wrong module, but they confirmed that for my VIN, that is the correct part number. So I started thinking maybe the previous owner replaced the whole module with the first one they found (on amazon or something) without even checking compatibility. I wonder if putting a part that does not belong to that car will cause these errors to show up.

Either way, I am wondering if anyone went through these error messages before and what parts they ended up getting. Is it a simple window switch or the whole door module + door handles for both doors.





Thank you for your help!

alexfe83

Any luck finding the solution for the issue?

I just got 2014 Porsche 911 Turbo S and I have the same code: Passenger's door - 084D Implausible signal - Inner door handle switch, continuous actuated

WhiskeyTango

Hi Alex,
Sorry for the delay. I finally got a chance to install all new parts purchased from Sunset Porsche Parts earlier today . Here is a list of all items I purchased:

Part Number

Part Name

991-613-181-00

Switch

4H0-959-793-AC

Control Module

991-537-075-11

Lower Weather-Strip

991-537-076-11

Lower Weather-Strip

991-613-153-02-DML

Window Switch

991-555-122-02-5Q0

Sill Plate

991-555-119-02-5Q0

Sill Plate

4H0-959-792-S

Control Module

991-555-421-02-7N0

Access Cover

991-555-622-02-7N0

Access Cover

with the exception of the switch (991-613-181-00), not door switch, it’s a special switch that goes some where inside the door. Which I couldn’t figure out where. I replaced all parts succefully

My issue is that it seems I need to program the new window switch and controllers which my icarsoft is unable to do I did the usually windows up / down reprogram but the controllers require an actual reprogram which I don’t know how to do so some issues went away but I am getting controller not programmed error message now.

I need to look for someone with PIWIS in San Diego that can help me. I’ll keep you updated once I find someone.