Doug427

I've tried Googling and searching this forum but I get tiny bits of info but not a complete picture. I used my Durametric to clear all fault codes on my car. I then drove it, and rechecked. Here's what came up, and they're all repeat customers:

Bosch Digital Motor Electronics Motrinic 7.8.1 header:
P0327 Knock sensor 1

(This one is easy - I assume the knock sensor on bank one is bad. Is bank one the drivers side?)


Instrument Cluster -9x7 header:
9150 reverse light 1 failure
9151 reverse light 2 failure

(Strange since both reverse lights work. Confusing why this would repeatedly come up.)

Airbag - POSIP header-
C152 communication PSM control unit (drive)
C141 Communication PCM (display)

(Multiple "communications" message arise. Perhaps because I have an aftermarket stereo in it and it messes with the CANBUS some how? I used a pro made madule to tap into the existing Bose system on the Kenwood head unit installation. It works flawlessly.)



Cornering lights header:
C144 Communication CDR (display)

(Yet another "communications" issue. Again, no idea what this is. The car has no warning lights on at all. )


Left Door Module header:
8704 Door h. Button inner sh. Stroke

(My interior door handle has the usual 987 issue where the travel is limited after hearing and feeling a pop once while opening the door and now the handle does not lay flush when released. I have the part everyone says to install that usually cures this, but I haven't put it in yet. I assume this code is tied to this?)

If anyone has any ideas on any of this I would be tremendously grateful. Thanks!

danschy

I think you can ignore the communication errors. Someone somewhere has written an explanation as to what causes them, but I don't recall other than to not worry about them. Every time I check my car I have a bunch.

Is it possible your reverse bulbs have been replaced with LEDs? That might trigger an alarm.

Doug427

I saw the LED issue raised when I searched earlier. The bulbs are normal bulbs. The reverse lights work perfectly. Very strange!

deilenberger

Anyone with an aftermarket headunit in their car is going to get the two communications error faults show up:

C152 communication PSM control unit (drive)
C141 Communication PCM (display)

That's because the functions being done were part of the factory display.