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Good morning everyone,

Well Im back in a Maserati drivers seat :). A 2004 Spyder

Sadly, she has the listed DTC codes, will not shift passed 2nd gear, and no speedometer.

Just to share in case anyone encounters this issue, it is the abs module. Like many parts on our cars, we share several parts with more average vehicles. In this example our ABS unit being a Bosch 5.7 used in several audi, vw cars, and some Bentley. Anyhow, I switched it out with a module from an a8 and sent it to the dealer to have it flashed.

Dealer cant communicate with the module at all. Says he feels there is a short somewhere. I tested for power and before i shipped it off and he says that he did to so now they feel it is an issue on the CAN bus. He asked Maserati for wiring diagrams on Wednesday and we haven't heard anything back.


I have seen several request for full wiring diagrams for the 4200 but I have not found a completed set. I do already have the workshop manuals located here:

Anybody have anything better or have a final answer on, as crazy as this sounds, if they exist?

oh, and any chance there is Maserati tech on here that can tell me the ABS coding for my model? I cant communicate with the maserati but i could throw it in my jag or audi to code it.

Thanks in advanced!
 
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Ok, you are kinda all over the place here..Yes, you need the ABS module for the speedo and the gearbox to work correctly... The CAN bus can be checked by going to pins 6 and 14 on your OBD2 connector..It should read 60 ohms...basic shit here...Sounds like your dealer couldn't fix a toy wagon....Just because a vehicle uses a 5.7 Bosch ABS module doesn't mean you can just swap them from make to make or code/configure them....All these manufactures have different protocols(languages) they use and you can't even communicate with the unit...What is ABS coding? My best advice is check the CAN bus and look for a good used unit on EBAY...The rebuilders can't always fix them when they don't communicate.....Jason
 

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Welcome back and good luck on the 2004 spyder... Really too bad you're having problems out of the gate but as Jason mentioned, you can't just swap the parts from other cars even if they appear to be the same. The tech should be able to read codes and do trouble shooting on the transmission issues. Can bus tech is likely needed as well and the pins are OBDII standard so a shop should know this. In any case, if they can't seem to figure it out, try another shop. Good luck hope it comes out well for you

Best Regards,
 

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I suspect it is just a bad wheel speed sensor, they are integral with the wheel bearings. the communication issue seems to be just the tech not having proper equipment. most scanners will not communicate. And yes, the ABS unit has to be from a Cambiocorsa spyder, nothing else will work, coupe will work but will have wrong calibration.
 
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The dealer can't communicate with the module because there is a Audi module in a Maserati.. You can't flash, reprogram, or configure anything in this case....Jason
 

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I can offer this. I was working on an older VW Passat and could not clear the abs module fault.
internet search led me to a small shop that repairs them. Send them yours and the repair it. So no problem with cross switching.
Somewhere north of 100 bucks got it fixed. Plus shipping.
The problem is you could never find it searching under Maserati. Look under VW. Then call them and show them the model number on your unit. They will say yes or no.
if you can’t find them PM me and I will dig it up.
The fix, apparently is just resoldering a connection that fails.
 
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