code help

[chopz33]

while driving to work this morning in comfort mode i turn into my parking garage, and get the error code where it shows the diagonal axle and 4 wheels ("sport differential system fault" error, and shows a little car like stick figure in yellow.

buddy at work scanned the car for me and i had these errors. not sure if they are related. just to add, nothing is leaking from underneath the car
i know jack about this so any help or insight would help
2012 B8 S4 49k miles


1324 - Control Module for All Wheel Drive (J492)
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 4
Fault Frequency: 1
Reset counter: 1
Mileage: 80217 km
Time Indication: 0
Date: 2016.07.08
Time: 07:35:51


Address 22: AWD (J492) Labels: 8K0-907-163.clb
Part No SW: 8K0 907 163 A HW: 8K0 907 163 A
Component: 4 Wheel Drive H12 0025
Serial number: 002107110001035
ASAM Dataset: EV_AllWheelDiffeQSPCAN 003016
ROD: EV_AllWheelDiffeQSPCAN.rod
VCID: 2E530AAE71A16B4EDC-807A

1 Fault Found:
0273 - Oil Pressure and Temperature Sensor
C1004 F0 [008] - Oil Pressure Implausible
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Reset counter: 2
Mileage: 80217 km
Date: 2016.07.08
Time: 07:35:51

[chopz33]

Did some searching- possible haldex issue. I'm guessing I should see if the connectors are rusted or dirty for starters.
Also the part number on the error code matches the part number on this one on Amazon.
How do I check to see if the ECM needs replaced?

https://www.amazon.com/Audi-Electron...ords=S4+haldex

[chaos2984]

looks like you need to replace the oil pressure sensor on the rear sports diff.
but to check it your going to have to use vag com and road test and watch the oil pressure of the rear diff while doing hard in corners when the diff pump would activate. Im not sure if there is a test to turn the pump on. But you can check. If there is you don't need to drive it. just run the test and monitor the pressure data.


http://www.audiworld.com/forums/s4-b...fault-2833418/

[chopz33]

Thank you, has anyone had to replace the sensor before? What is the cost of something like that. I'm not under warranty?