Coding Haldex 4 Control Unit

Hello.

I hope someone can help me here. I installed a new Haldex unit, using what was supposed to be the same Haldex control unit. Now I'm having a small problem: the diagnostic system shows "Transmission control unit, no communication." I thought it might possibly be related to coding.
Unfortunately, VCDS doesn't provide a list; it directs me to contact support via email. I disassembled the old ECU, and to my dismay, it was completely corroded. I'm attaching everything to the email.

I hope it can be resolved. Available tools: VCDS, VCP, Odis S, Odis E.
Thank you for your help.
Vehicle: VW Tiguan, Year of Manufacture: 09/2009.
Engine code: CBA, 103 kW.

Hello,

According to your files, the old and new Haldex control units have the same coding.

SW:0AY-907-554-C HW:0AY-907-554-C --- All-wheel drive.
Component: Haldex 4Motion, Code: 0000005.

If you are certain that the used Haldex control unit actually works, the next step is to investigate why it is communicating with a transmission control unit, which seemingly doesn't exist because there is a manual transmission.

Are you sure that the old Haldex control unit was original and not incorrectly programmed or the wrong control unit?

Edit: Found it.

Quote:

Error code 01315 is triggered when there is no communication with the automatic or DSG transmission via the CAN network. This error usually occurs because a used Haldex control unit, originally from a car/DSG vehicle, has been installed in a vehicle with a manual transmission. The Haldex control units are pre-configured to work with the correct type of transmission. You can replace an automatic transmission control module with a manual transmission control module, but not the other way around. If you want to get rid of code 01315, simply use VCDS or another good diagnostic tool: - Go to the 22-AWD module, navigate to "Basic Settings," select channel number "20," and then click the "On" button at the top of the window. - After that, turn the ignition off, then on again, and you will find that the 01315 code has been cleared.

Best regards, Rainer.

Hello Rainer.
I am aware of that. But with the old TCU, I had the DTC code 02248 from the pressure control valve, and everything was fine after I cleared it. I will test tomorrow to see if the all-wheel drive is working, but I won't receive the filter package and oil until tomorrow. Then I will test it. It's strange, though, that the numbers 5WP33522-02 0902 from the O-ring and 5WP33522-01 2458 might be related to this. I've never experienced anything like that before.

I wanted to let you know that it worked, setting the basic configuration to channel number 20 and turning it ON. Thank you for the information; I wouldn't have figured that out.

Great, thanks for the feedback!