Key fob RF not working
05-31-2022, 11:26 AM
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R320
Key fob RF not working
Hey folks,
I hope someone can help me or have an idea whats wrong with my car. The car is a 2006 w251 and just locks and unlocks via infared. RF is not working. Both keys are not locking/unlocking via RF, just via infared. I already change the rear sam to test but the same problem. Both keys have new batteries. I read the fault codes via obd and it shows me:
-90C4 - Interference suppression filter short circuit A49/1.
-9259 K24/2 passenger seat relay (is working without problems).
When i delete both, they came back after a few minutes.
I check the plug C on the rear sam but couldn't see anything wrong with it. I don't have any idea more what it could be. Broken cable? But where? Or something other?
DAS shows the problem could be the roof antenna A2/93. But everything other is working fine. Radio no problems and GPS no problems.
I hope someone can help me or have an idea whats wrong with my car. The car is a 2006 w251 and just locks and unlocks via infared. RF is not working. Both keys are not locking/unlocking via RF, just via infared. I already change the rear sam to test but the same problem. Both keys have new batteries. I read the fault codes via obd and it shows me:
-90C4 - Interference suppression filter short circuit A49/1.
-9259 K24/2 passenger seat relay (is working without problems).
When i delete both, they came back after a few minutes.
I check the plug C on the rear sam but couldn't see anything wrong with it. I don't have any idea more what it could be. Broken cable? But where? Or something other?
DAS shows the problem could be the roof antenna A2/93. But everything other is working fine. Radio no problems and GPS no problems.
Last edited by Rrrklasse; 05-31-2022 at 11:52 AM.
