Trailer

How can I activate the trailer indicator light control? (Applicable to VW T5 and other vehicles like the Seat Ibiza, etc.)
Thank you very much, Manfred.

Hello Manfred,

Is the coding in the body control module (address 09) adjusted?
Bit 1 (weight: 2) must be set.

Best regards, Rainer.

Thank you for the quick response.
'What is the value of bit 1?'
Best regards,
Manfred

Hi,

Bit 1 of the value indicates whether or not the vehicle has a trailer hitch.
Example: Trailer hitch disabled; the old value is encoded as 17 (this is an arbitrarily chosen value; read yours and write it down!).
17 = 16 (Bit 4) + 1 (Bit 0) = binary 10001.
The binary representation 10011 corresponds to the decimal value 19.

Best regards, Rainer.

To cut to the chase...

For the T5, Rainer is correct; simply add 2 to the current encoding.
However, with the Ibiza, it's different; there, it's 1 (bit 0).