B1836 : transponder aerial fault

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Maru-maru-555
Posts: 2
Joined: 13 Jun 2025, 03:43

Re: B1836 : transponder aerial fault

Unread post by Maru-maru-555 »

Hi
I'm having the same problem with my DS5.
When I press the start button nothing happens.
The speedometer doesn't even start up!
I'm thinking of replacing the ADML Control Module with a used one, but is adaptation necessary? Does anyone know?
wheeler
Posts: 7893
Joined: 21 Sep 2002, 19:07
x 1043

Re: B1836 : transponder aerial fault

Unread post by wheeler »

Does it start if you hold the fob on the emergency start area? not sure where it is on your car. Do you have more than one key to try?
Not sure if the unit you are talking about needs coded but i do know that Japan spec Citroen/DS vehicles can have additional RF receiver equipment not found in European spec cars as they use different frequency's.
Maru-maru-555
Posts: 2
Joined: 13 Jun 2025, 03:43

Re: B1836 : transponder aerial fault

Unread post by Maru-maru-555 »

Thank you for your reply.
When I hold the key fob over the emergency start area it doesn't react at all. Same for the spare key fob.
The key fob itself is fine, so I think the problem is with the vehicle.
When I press the start button a few times the meter lights up and the engine starts. I have already replaced the start button with a new one.