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Can a used ABS module replace a defective one?

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I have a 2005 Cayenne S and am chasing the cause of my PSM and ABS fault lights. Using a durametric I recieved a 1276 code which was subsequently confirmed by the dealer. I am being told my abs module or hydraulic pump is likely faulty. FYI - there is no visible isssue with wire harness to module, I have cleaned the MAF and I have no brake switch in my model to swap out - all of which are all documented causes for this issue. I would like to know the following as I am getting mixed info from online forums:

1. Can the abs module be replaced with a used version with the same part number?

2. If so, does the module still need to be reprogrammed by Porsche to my VIN or specific car?

3. I have read there is a TSB that explains compatible part numbers (e.g. Last letter) - i would appreciate this information if known to you.

4. If others have resolved the same fault code please advise how.

Many thanks in advance for your response -


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I am being a broken record now but is your battery in good shape? 

Starting to see a lot of people with codes as the winter has come upon us and suspect batteries are alarmingly common with our cars. 

Officially the modules are supposed to be coded to you car but some people have had success by using a used module from the same  year/spec/option cars ie for comfort control modules.

A cheap one off ebay might not be a bad gamble if you think module is the issue. 

FYI modules are not that frequently faulty. It's usual associated items. I assume when you checked the connectors and wiring that you also confirmed all fuses related are good? 

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