Volkswagen Electronics

VOLKSWAGEN ELECTRONICS

AUDI  MODULE CODING

Electronics has taken over the modern day car, a trend that started prior to 1994. Since then  motor vehicle electronics technology has taken on a completely different form. With the advent of OBD (On-Board Diagnostics) there has been strides to standardize automotive electronics in all vehicles with relative success. With the arrival OBD II automotive electronics standardization was close to uniform, however there were other derivatives, among which was EOBD (European OBD). Thereafter, CAN-Bus was introduced which is now the defacto standard for all cars built after 2008 internationally. All cars built from 2012 only sports CAN-Bus,  and are not backward compatible to older ODB II protocols, like KWP2000 for example. This move implies every auto technicians who financially invested in ODB II scanners will have to get the latest equipment in order to scan the latest cars. Just look at the Audi Q7 with its 50+ electronic modules all of which are CAN-Bus only. 

Audi Q7 has more than 50 Electronic Modules.

The hexadecimal list of Electronic Modules below are just an idea of what can be expected in current and future motor vehicles many of them having as many as 24 different module versions, many modules are incompatible with the various models of Audi, VW, Skoda and SEAT, each with its own features and coding.

01: Engine

02: Auto Trans

03: ABS Brakes

05: Acc/Start Authorization

06: Seat Memory - Pass Side

07: Control Head

08: HVAC

09: Electrical Control

0E: Media Player 1

0F: Digital Radio

10: Park/Steer Assist

11: Engine II

13: Auto Dist. Regulation

14: Susp. Elect

15: Airbags

16: Steering Wheel

17: Instruments

18: Aux. Heater  

19: CAN Gateway

1B: Active Steering 

1E: Media Player 2  

20: High beam assist

22: All Wheel Drive

25: Immobilizer

28: Heating / Air Conditioning (Rear)

2E: Media Player 3

30: Special Functions II

34: Level Control

36: Driver's Seat

37: Navigation

3C: Lane Change

3D: Special Function

42: Door Elect, Driver

46: Central Convenience

47: Sound System

4F: Centr. Electr. II

52: Door Elect, Pass

53: Parking Brake

55: Headlight Range

56: Radio

57: TV Tuner

5C: Lane Maintenance

5F: Information Electr.

61: Battery Regul.

62: Door, Left Rear

65: Tire Pressure Monitor

67: Voice Control

69: Trailer Controller

6C: Back-Up Camera

6D: Trunk Electronics

6F: Comfort System II

72: Door, Right Rear

76: Park Assist

77: Telephone

AUDI : - SOME ENGINE CONTROL UNITS AND CODINGS

Engine:

Controller:     8E0 909 518 A,
Coding:         0011581 or 0016711

Controller:    8E0 909 518 AA

Coding:         0011501

Controller:    8E0 909 518 AC
Coding:        0004501 / 0004581

Controller:     8E0 909 518 AF
Coding:         0016701 / 0016751 / 0016581

Controller:     8E0 909 518 AK
Coding:         0016711 /  0016751 /  0016501

Controller:     8E0 909 518 AL
Coding:         0011584

Controller:     8E0 909 518 AS
Coding:         0011511

Controller:    8E0 909 518 AQ  
Coding:        0011501

Controller:     8E0 909 518 F
Coding:         0016701 or 0016751

Controller:     8E0 909 518 G
Coding:         0016581

 AUDI Automatic Transmission 
codings will be covered in Future Blogs.

VIN Number identification 
will also be covered in Future Blogs.

Volkswagen’s new modular architecture 
will also be covered in Future Blogs.

VW AIRBAGS

VW AIRBAGS CODING

Virtually all modern cars are fitted with airbags and VWs or VAG cars are no exception.  Airbags are specifically designed to protect the driver and  passengers in the unfortunate case of an accident.  Having airbags gives drivers and passengers a certain sense of safety and assurance should they be involved in an accident that injuries sustained could be kept at a minimum. Airbags are manufactured from a parachute-like material and they instantly inflates with a compressed gas,  when the automobile in which it is fitted to meets with a collision.

VW Polo Classic 2.0L highline facelift airbag controller

However it is becoming increasingly common for airbags to deploy unintentionally, sporadically and spontaneously, completely  without the help of an accident. Even though airbags are designed to make drivers and passengers feel safer, in several cars the presence of an airbag  has the complete opposite effect. Airbags dashboard lights are also commonly lighting-up for no reason and without explanation. If or when the airbag on the dash board  lights-up, the system detected a problem and as a consequence sets an error code or trouble code. This implies that the airbag circuit isn't working properly and will not deploy in the event of an accident. When the airbag light comes on  for no reason, you should have your VAG car checked and  diagnosed by a trained technician because the airbag system is certainly not a D.I.Y item. There is no "reset" for an airbag system so NEVER attempt to repair it yourself since serious injury can result  if not done correctly.


Every time the ignition is switch on the system does a self check and should  it detect a problem, the air bag light is will be illuminated or flash. Repeated flashing  is actually the fail code being spelled out in a two-digit code. The light will pulse the first digit,  pause, then pulse out the second digit, pause again but for longer, then start all over again. Once the problem if fixed and the error code cleared the light will stay off.

Normally car code readers, scan tools and auto diagnostic testers omit airbag testing and interrogation unless specifically selected for fear that the diagnostic equipment or user error could trigger the airbags and cause personal injury. Numerous airbag malfunctions has occur during impact, amongst which are delayed deployment, partially deployment and complete failure to deploy. Several vehicle owners including VW, Golf  and Polo owners have complained to The National Highway Traffic and Safety Administration about airbag problems which could entitle them to a full or partial refunds for airbag problems experienced and in some cases even entitled to a new car replacement.

When a VW ends up in a crash, it stores the crash data which cannot be cleared with a VAG-COM. VW and the  airbag controller manufacturer intended it to be "unclearable" but rather replaced.  Normally the safety belts will have to be replaced along with the new airbags because the strain gauges and other electro-mechanical sensors inside them are unreliable once they have exceeded the G-forces limit at deployment.

VW POLO
Address 15:      Airbags
Controller ID No 6Q0 909 601 F
Component 05 AIRBAG VW5 0010
Coding         12341
Alternative:       12337 or 12338

00589               Airbag Igniter 1 - Passenger Side -N131
         Short to Ground  INTERMITTENT
00588        Airbag Igniter - Driver Side -N95
         Resistance to High  INTERMITTENT
00589               Airbag Igniter 1 - Passenger Side -N131
         Resistance to High  INTERMITTENT
00588           Airbag Igniter - Driver Side -N95
         Resistance to Low  INTERMITTENT
00588        Airbag Igniter - Driver Side -N95
         Short to Ground  INTERMITTENT
P1280        Passenger side Airbag Switched Off

Below is a list of airbag codings and some alternatives for those with airbag coding issues.

6Q0 909 601        -   12597 or 12622 or 12360 or 12358 or 12628 or 12344 or 12360
6Q0 909 601 A    -   12362
6Q0 909 601 C    -   12338
6Q0 909 601 E     -   12343 or 12359 or 12354 or 12338
6Q0 909 601 F     -   12341 or 12337 or 12338
6Q0 909 601 OM -   12365
6Q0 909 601 OB  -   12354
6Q0 909 601 0C   -   12355
6Q0 909 601 2A   -   12865

OTHER INTERESTING VOLKSWAGEN TOPICS

VW ABS diagnostics

VW Polo Diagnostics

VW ABS CODING

VOLKSWAGEN ABS DIAGNOSTICS

Using a code reader or  diagnostic tester to view your VW Polo ECU data is quite a treat and is also really cool. A view of the data just exudes the growth of motor vehicle technology in general and it is quite humbling if you are electronically minded and quite intimidating if you are mechanically minded.  However there is often the temptation to change a number or something, just to see what happens to your Volkswagen. If you are one of those people who just did that, I bet you have a wistful regret, wishing that you never did so in the first place because you got yourself a "01044 control module incorrectly coded error." Or perhaps you  swapped a 1996 VR6 engine into a 2007 MkV GTI chassis and got a "01044 control module incorrectly coded error." Or you had your car serviced and the ABS and ESP light stays on in the instrument panel and showing up as a "01044 control module incorrectly coded error."  Or you cleared that nagging airbag light on your VW Beetle, only to get a "01044 control module incorrectly coded error."

Control modules codings are normally NOT interchangeable since virtually every model among the numerous versions of  VW's  each have a different ABS/ESP module, Power Assisted Steerin Module, Climate control Module,  Instrument Module, Immobilizer Module and Engine Control Module and so many other modules. Taking this into consideration,  it is more than  obvious that one should NEVER copy coding from a different model VW, AUDI, SKODA or SEAT and paste it into your own Volkswagen, AUDI, SKODA or SEAT, unless you write down your original modules original coding so that you can revert back to it later, should things appear to go pear shaped. 

However if the two VW, AUDI, SKODA, or SEAT are the same in every respect, then  their module codings will be identical and therefore perfectly fine to use. Be particular about the module suffix since different suffixes signify different software versions which may not be compatible to your VAG car. Virtually each module that appears identical but has different letter suffixes will invariable have a different coding. So the rule is same car, same module, same module number, same module suffice, same coding. Disregarding this could incapacitate your car and cost you a huge amount of money.

Every Control module coding is stored as an onboard binary number, which in essence is the binary sum of the features for that specific module. Whereas the ECU also stores an onboard binary number which is the binary sum of all the Control Modules fitted in the car. This binary sum is called the checksum and any incorrectly coded  module will result in an erroneous checksum. If this is the case, the erroneous checksum is compared to a reference checksum also stored in the ECU module and any discrepancy could incapacitate your Volkswagen completely or present you with some peculiarities and error codes to match. Like the notorius 01044 control module incorrectly coded.  Checksum verification was adopted by BOSCH Motronic ECUs to validate its EPROM's stored data. Having said that, it is wise not to change the coding or replace any control modules in your VW AUDI, SKODA or SEAT unless you are au fait with binary and hexadecimal number systems. 

Below, is a list of VW ABS controllers and their respective coding which vary from  'ABS FRONT MK60 0101' to  'ABS 8.0 front H03 0002' to 'ABS 8.0 front H05 0002' to 'ABS 5.7 FRONT V20' to 'ABS 5.7 FRONT V30 ' to 'ABS/ASR 5.7 FRONT V20' to 'ABS 5.7 FRONT V00' to 'ESP 8.0 front H03 0001' to 'MABS 8.0 front  H04 0002' to 'ESP 8.0 front H03 0001' to 'ABS 8.0 front H03 0002' to mention but a few. Several VW, AUDI, SKODA and SEAT owners and mechanics are constantly searching the Internet for ABS module coding and hopefully this information may help them to get their Volkswagens, Skodas, Seats,  Audis and other VAG cars up and running once again.

VW POLO 6Q0 907 379 AC ABS Pump

VW Polo 9N
Address 03: ABS Brakes
Controller: 6Q0 907 379 AC
Component: ABS 8.0 front H03 0002
Coding: 0000145

ALTERNATIVE ABS MODULE CODING
NB! These are the codings I currently have but are certainly not the only ones use by Volkswagen, SEAT, Skoda and Audi. As I get them I will update this list.

6Q0 907 379    - Coding:  00036 or 00044
6Q0 907 379 AA - Coding: 0000005 or 0000008
6Q0 907 379 AB - Coding: 0000005 or 0000008
6Q0 907 379 AC - Coding: 0000145 or 0000142

6Q0 907 379 AF - Coding: 0002061 or 0002079 or 0002082 or 0002085 or 0002103 or 0002115 or 0002118 or 0002122 or 0002136 or 0002145 or 0002175 or 0002181 or 0002190 or 0002193 or 0002199 or 0002202
As can be seen above, AF suffix has the whole gamut of codings and each should be tried before throwing in the towel.

6Q0 907 379 AG - Coding: 0002202 or 0002229 or 0002238
6Q0 907 379 AH - Coding: 0000299 or 0000284
6Q0 907 379 AQ - Coding: 0002356
6Q0 907 379 AS - Coding: 0002347 or 0002368 or 0002368 or 0002491
6Q0 907 379 AT - Coding: 0000269
6Q0 907 379 BC - Coding: 0002136 or 0002098
6Q0 907 379 C  - Coding: 00044
6Q0 907 379 D  - Coding: 00124 or 00188
6Q0 907 379 E  - Coding: 0001097
6Q0 907 379 G  - Coding: 00044 or 00045
6Q0 907 379 H  - Coding: 00188
6Q0 907 379 L  - Coding: 0001097
6Q0 907 379 M  - Coding: 0000000
6Q0 907 379 R  - Coding: 0000008
6Q0 907 379 T  - Coding: 0000281 or 0000296 or 0000299

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