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Engine mount error code

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Old Feb 6, 2026 | 01:44 PM
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Engine mount error code

Someone perhaps can help with engine mount error:

AMG DRVU - AMG DRIVE UNIT DTC (1) 1.P0AB602 - Actuation for engine mount ''B'' has an electrical fault or an open circuit.There is a general signal fault.

I changed both mounts but still give same error as current and stored. Seems the issue somewhere else , but where and what to check?
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Old Feb 6, 2026 | 02:15 PM
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My guess would be the harness. Any chance a rodent got in there and chewed up some wires?
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Old Feb 6, 2026 | 02:43 PM
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Originally Posted by superswiss
My guess would be the harness. Any chance a rodent got in there and chewed up some wires?
No,not possible.
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Old Feb 6, 2026 | 03:13 PM
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Nevertheless, the thing to do is measure if there’s a signal arriving at the engine mount. That should have probably been done before going ahead with replacing the mounts. Most likely a faulty connection somewhere or the wires themselves.
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Old Feb 6, 2026 | 03:14 PM
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2022 AMG E53
Sub-Code = P0AB6-02 / P0AB602
General Meaning = Short to Ground
Possible Causes = Wiring harness shorted to ground, damaged component, faulty insulation.
Diagnostic Steps = Inspect wiring for shorts to ground, check component grounds, repair damaged insulation. Also check the acceleration sensors.
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Old Feb 7, 2026 | 01:55 AM
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Originally Posted by lbowersaz
Sub-Code = P0AB6-02 / P0AB602
General Meaning = Short to Ground
Possible Causes = Wiring harness shorted to ground, damaged component, faulty insulation.
Diagnostic Steps = Inspect wiring for shorts to ground, check component grounds, repair damaged insulation. Also check the acceleration sensors.
Do you know where I can find wiring diagram etc..?
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Old Feb 7, 2026 | 09:05 AM
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I have the same code on both sides. When I did my research I came to on a software update as the first step to cure this problem. I have attached the search. The problem is it's expensive to get the update.I was actually looking at getting a scanner to do the update myself. A lot of the scanners promise the world , but they don't do what they promise.

Launch X431 Pro5 vs pro3 v elite 2026 modules

I was looking at 1 of these 2 models, but when I emailed them, they havent responded yet. All the reviews that received these unitsd said it was great. Then they never said anything again about it.

If someone could chime in thst this might work , it could be a big , helpful resource for us all.


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Old Feb 7, 2026 | 09:20 AM
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Originally Posted by hc_416
I have the same code on both sides. When I did my research I came to on a software update as the first step to cure this problem. I have attached the search. The problem is it's expensive to get the update.I was actually looking at getting a scanner to do the update myself. A lot of the scanners promise the world , but they don't do what they promise.

Launch X431 Pro5 vs pro3 v elite 2026 modules

I was looking at 1 of these 2 models, but when I emailed them, they havent responded yet. All the reviews that received these unitsd said it was great. Then they never said anything again about it.

If someone could chime in thst this might work , it could be a big , helpful resource for us all.
Thats interesting , I have x431 Elite 2025 but i dont know how to update it..
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Old Feb 7, 2026 | 11:56 AM
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Hit up @BenzNinja and you will always be able to update any module anytime
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Old Feb 7, 2026 | 03:54 PM
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Originally Posted by laisad191
Thats interesting , I have x431 Elite 2025 but i dont know how to update it..
Are you able to access that module?And if you have online connectivity , you should be able to update it via that platform and cloud based software.
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Old Feb 7, 2026 | 05:13 PM
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Originally Posted by hc_416
Are you able to access that module?And if you have online connectivity , you should be able to update it via that platform and cloud based software.
Noup, cant access - even no such option dor this. Seems need DAS or Xentry dor that.
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Old Feb 7, 2026 | 05:18 PM
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Originally Posted by laisad191
Noup, cant access - even no such option dor this. Seems need DAS or Xentry dor that.
what's the exact model you have? Some of the x forty three ones are only scanners and will not program the module.
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Old Feb 8, 2026 | 09:02 AM
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Originally Posted by hc_416
what's the exact model you have? Some of the x forty three ones are only scanners and will not program the module.
Pro Elite.
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Old Feb 8, 2026 | 09:59 AM
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Originally Posted by laisad191
Pro Elite.

I don't think that one can do it.It's only a diagnostic scanner from what I can see. For what I can tell you have to have one of the two I have stated above or a more expensive one from them.

https://www.launchx431online.com/pro...34-programming

I think using there command 3 you load the oe software and go from there. I have an email into them but have not heard back yet.
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Old Feb 8, 2026 | 10:23 AM
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Originally Posted by hc_416
I don't think that one can do it.It's only a diagnostic scanner from what I can see. For what I can tell you have to have one of the two I have stated above or a more expensive one from them.

https://www.launchx431online.com/pro...34-programming

I think using there command 3 you load the oe software and go from there. I have an email into them but have not heard back yet.
Have you tried to replace accelerator sensors? Some pages writing that error code can be mean issues with this one..
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Old Feb 18, 2026 | 03:05 AM
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Finally solved, changed both mount's and error gone. But interesting that adaption showed that both mounts were good..
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Old Feb 19, 2026 | 01:31 AM
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Originally Posted by laisad191
Finally solved, changed both mount's and error gone. But interesting that adaption showed that both mounts were good..
And what I mean here is that previously i changed already both and now under warranty 2 weeks later they changed both again and issue solved, seems x-files mystery.
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Old Feb 19, 2026 | 10:28 AM
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Did the actually replace with a second set , or just do something in the software?
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Old Feb 19, 2026 | 07:13 PM
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Originally Posted by hc_416
Did the actually replace with a second set , or just do something in the software?
Yes, second set. First step was to update software but it didnt help, same issue.
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