fault in can communications with N73 EZS control module?

2005 MERCEDES BENZ C200

138,000 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC

ALAEDDIN IBRAHIM BEN GHARBIA

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my car has gear shift level disappeared from IC , the ac condition unavailable on can bus means not running , parktronic does not working no volts for bumpers but it is working with no fault and flashing when ignition on only reverse lights does not go on when r gear in but from SAM test it is light on audio 20 fault can communication with N73 both SAMs f and rear fault is also can N73 fault can communication.

Jul 6, 2023 at 6:22 PM

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Can I ask if a CAN scan was done? You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

We should start by checking the fuses, here is a guide that should help.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

The Audio 20 fault suggests a problem with the audio system. If both the front and rear SAM modules are experiencing faults, it could indicate a problem with the modules themselves or a wiring issue. Similarly, if the N73 module (which is responsible for communication) is also experiencing faults, it could be related to a wiring issue or a malfunctioning module.

It is common for the SAM modules to go out if all fuses are good, I would try swapping the SAM module out. Here is how in the images below.

Images (Click to enlarge)

Jul 7, 2023 at 11:42 AM

ALAEDDIN IBRAHIM BEN GHARBIA

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Thanks a lot fixed change ECU and ezs and els and now everything back to work.

Jul 10, 2023 at 4:27 AM

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Thanks for letting us know, we are here to help, please use 2CarPros anytime.

Jul 10, 2023 at 10:32 AM