VW Golf 5 interior fan

Hello,
I have a parking distance control (PDC) system for a Golf 5 that I would like to install in my Golf 4. Only the GOLF5 uses CAN for everything.
Does anyone happen to have the IDs for 'ignition on' and 'reverse' for me?

Best regards,
Markus.

Not really, when it comes to physical assistance.
I need to go home and see if I can find them.

Sure, Maxx.

I would be very grateful for that.

I'm not going to leave the house today without checking something.
I will definitely follow up on that tomorrow .

Sure, Maxx.

Ignition: ID 2C3, Byte 1, Bit 1.
Reverse light: ID 531, Byte 1, Bit 5.

They should fit...

Sure, Maxx.

You're welcome, I'm glad I could help.

Unfortunately, I won't be able to come and test it until the weekend.


Best regards.
markus

No problem.
Sure, just let me know if it worked.

Sure, Maxx.

I've now connected a Golf 5 instrument cluster with the PDC (Parking Distance Control) to my desk, and I've linked it to VAGCOM, but unfortunately, I can only access the instrument cluster, not the PDC. When I log in with can tool, the PDC control unit doesn't send any CAN IDs either. :(

I need to figure out how to trigger a 'wake-up' signal from the control unit.

Best regards.
markus

Yeah, it's quite possible that a reboot is necessary.
While I do have a parking distance control (PDC) system in my car, I can't check it right now because I haven't connected the CAN cable to the car.
I need to install a connection first.

Sure, Maxx.

Last night, I was really motivated, thinking it would only take 5 minutes. I even planned to test out the new CAN hacker while I was at it, but... now I'm hoping the PDC control unit isn't broken.

hmm, somehow my PDC STG doesn't want to .
Does anyone have any idea how to create a 'wakeup'?

Just send any message; normally, the control unit needs to be activated first. Is it only a question of how long ? Without simulated network management, it goes back to sleep after just a few seconds...

'No, nothing's coming up. And I've already tried simulating network management.'

You've either connected something incorrectly, or the device is faulty. A control unit with CAN-Wakeup functionality needs to be woken up via the CAN bus. How about using LocalWakeup through the wire connected to the reverse light (if there's a pin for that)? As far as I know, there's no 'reverse gear' signal transmitted via the CAN bus in a standard switch.

EDIT: I need to correct myself. Maxx was right. 0x531 is a message from the body control module and transmits the status of the reverse light. The byte and bit values also match. Sorry for the confusion.

EDIT: That part about the ignition is only partially correct. Actually, the PDC should listen on 0x575. Byte 1 and Bit 1. 0x2C3 are essentially the unprocessed 'raw signals' of the ignition switch status .

But as I said - if the control unit isn't waking up, then something is wrong. Is the CAN bus polarity reversed? Unfortunately, you can't see whether error frames are coming through the interface .

No, I intentionally swapped 'can high' and 'can low'. Then I'll get another CAN control unit and test it with that.


Best regards.
markus

Does the Golf V not have an external CAN gateway, similar to the A3 8P, that requires a CAN-capable VAG-COM interface (#19)? With the A3 8P, almost nothing works without the gateway, even if the instrument cluster and comfort CAN buses are connected. Many devices will also fail to function if they cannot reach the CAN gateway (in the 8P, the telephone interface is a good example of this).