Igoogled the code, 01221 and this pops up on Ross-Tech's site: 01221 - Crash Sensor Side Airbag; Driver Side (G179) as well as: Possible Solutions. Check Wiring/Connections between Airbag Control Module (J234) and Crash Sensor Side Airbag; Driver Side (G179) Replace Crash Sensor Side Airbag; Driver Side (G179) Replace Removing& Replacing CAMSHAFT POSTION SENSOR B8 2013 AUDI A4 2.0 TFSI. Removing & Replacing CAMSHAFT POSTION SENSOR B8 2013 AUDI A4 2.0 TFSI. A4(B8 Platform) Discussion - No A/C Fault In J519 Module - Hi All, Just had my A4 in at the mechanic today trying to fix the AC (AC not cooling). He found a fault code 457 in the J519 power control module (P/N 8K0 907 063 D) and a fault with the pressure temp sensor. The sensor was replaced and the same sensor fault 01769 Sensor for Viechicle Leveling Front Right (G289) 010- open or Short to Plus 03262- Comfort Restrction 000. Dose anybody know where I can find Wiring Diagrams for my 2009 Audi A4 2.0T Quattro B8 looking to find the shorts from the previous owner installing the aftermarket amp. TheS4 has started throwing up a Check Coolant Level fault on the dashboard. There are no coolant leaks and I’ve had the system pressure tested too. The fault seems to only come on after a short while of driving but once it trips it remains on permanentlay until it’s cleared with VCDS (This includes being on with just the ignition . gareth1021 I've got a 2009 Audi A4 with central locking issues believed to be a faulty BCM. I'm attempting to swap the body control module using one with matching part numbers but the ignition and other car functions don't work with the new body control module. i even tried a third incase it was fault. I assumed the new one could be plugged iveread that the yellow plug under the seat is prone to corroding or coming appart - neither hsa happened to mine so its either wiring to the sensor or the sensor AudiA4 B8 Park/Steer Assist not working anymore. Thread starter Roar; Start date Dec 30, 2017 3C21CA4586E0B68 Crash sensor for side airbag: driver side: Serial number: 6334MSME340449445 Crash sensor for side airbag: front passenger side: Serial Im looking into retrofitting front PDC sensors on a facelift 2013+ Audi S4 via the 09-Cent. Elect. module (should be similar for A4,A5,S5 facelift). I know one option is to move front and rear PDC control to a "10" Park/Steer assist module module in the trunk, but am investigating a more "Factory" approach where all sensors are wired to 09-Cent. J Patterson (02-25-2022) A4 (B8 Platform) Discussion - 2015 A4 Sensor Issues - Hey All! 2015 Audi A4 started throwing out the following errors one morning: Parking Brake Malfunction, TPMS, and ABS. After running diagnostics w VCDS, parking brake malfunction and TPMS are still present, but ABS fault is now replaced by an Airbag

audi a4 b8 crash sensor location