Dashcam causing interference with key fob?
Thread Starter
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Joined: Aug 2020
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C43 amg
Dashcam causing interference with key fob?
Hi when my dual dash cams are connected my car doesn’t or very rarely respond to any input from my key (it’s 100% not the battery)
First I thought it was because I hardwired the camera constant 12V to the fuse 205 which is the Electronic ignition lock control unit.
I don’t take away this possibly but I have been told that it could be the cables that can interfere with the RF receptors on the car.
Can it be the case knowing there’s many of them on the car? Also I couldn’t find any diagram that tells where they are.
Any solutions?
thanks
First I thought it was because I hardwired the camera constant 12V to the fuse 205 which is the Electronic ignition lock control unit.
I don’t take away this possibly but I have been told that it could be the cables that can interfere with the RF receptors on the car.
Can it be the case knowing there’s many of them on the car? Also I couldn’t find any diagram that tells where they are.
Any solutions?
thanks
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2015 C300 4Matic Sport
I would suggest wiring your dash cam to one of the 12 volt cigarette lighter fuses instead. (My w205 has two)
The rule of thumb is never tap into a fuse for a critical system like a control unit.
The rule of thumb is never tap into a fuse for a critical system like a control unit.
Thread Starter
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C43 amg
I already use the glove box fuse for the ACC.
I think I tried the cigarette lighter for the constant 12V it did not work can you help me by telling me which fuse number you took for the 12V? And am I better to go use the trunk fuse box?
https://www.autogenius.info/mercede-...e-box-diagram/
Super Member
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2018 C43
Hi thanks for the answers so you think it could be the fuse I choose? Because I tried to unplug the rear camera as said in dashcam forums and the key works as normal apparently it’s the rear camera cable that causes interferences.
I already use the glove box fuse for the ACC.
I think I tried the cigarette lighter for the constant 12V it did not work can you help me by telling me which fuse number you took for the 12V? And am I better to go use the trunk fuse box?
https://www.autogenius.info/mercede-...e-box-diagram/
I already use the glove box fuse for the ACC.
I think I tried the cigarette lighter for the constant 12V it did not work can you help me by telling me which fuse number you took for the 12V? And am I better to go use the trunk fuse box?
https://www.autogenius.info/mercede-...e-box-diagram/
Thread Starter
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C43 amg
Super Member
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2018 C43
However, on 211 the very last fuse on the yellow rail, which yours is also blank, make sure to just use single fuse to power up the dashcam not 2.
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Thread Starter
Junior Member
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C43 amg
Thanks and I keep the 7.5A I have ? And it’s the top one that need to stay empty right?
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Super Member
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2018 C43
Just remove the original fuse that was on 205 from the piggy and put it back on 205. The single fuse that's on the piggyback should work on 211 or other blank fuse you want to use on the constant yellow rail.
Thread Starter
Junior Member
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C43 amg
Hi I did it and it worked fine but I still cant lock/unlock my car from far
