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W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Testing Canbus

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Old Jul 25, 2016 | 10:10 PM
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realien
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2016 AMG GTS
Testing Canbus
I have a thread in the audio section trying to figure out a canbus decoder issue for a headunit, but now I'm starting to think I have a canbus issue.

everything in the car works, except I get a message "active headlamp display malfunction" on the instrument cluster, the headlamp work fine, I just see that message, not sure yet if its related

I tapped two wires near the drivers side raceway to check the voltage on the canbus, with the ignition in ACC, I see just under 1v on one wire and about 4v on the other wire, is the normal ? Some folks see 11v (supposed to be at rest) but I never see that.

here are the two wires I tapped


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Old Jul 26, 2016 | 10:24 AM
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realien
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2016 AMG GTS
Yeah, that was starting to dawn on me. Either going to borrow a star setup, or find someone who has the expertise, Just like to do everything myself
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