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Old 4 Weeks Ago   #16
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Re: no warning lights but the ABS pump not working

Well, two possible reasons: the valve is physically seized OR is permanently acivated by a faulty circuit... If I remember well they're all driven by MOSFETs and it's possible that the drive circuit failed and closes the valve ...

BRs, Bernie

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Old 3 Weeks Ago   #17
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Re: no warning lights but the ABS pump not working

Nice one bernie, liked the schematic, very usefull.

Would you have the pin out etc. for the abs block and any bench test procedure, so valves/solenoids can/could be tested/activated??
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Old 3 Weeks Ago   #18
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Re: no warning lights but the ABS pump not working

Yeah sorry for the mumbo jumbo
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Old 3 Weeks Ago   #19
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Re: no warning lights but the ABS pump not working

Quote Originally Posted by puntodad19 View Post
Nice one bernie, liked the schematic, very usefull.

Would you have the pin out etc. for the abs block and any bench test procedure, so valves/solenoids can/could be tested/activated??
Unfortunately the internal valves / pump can NOT be accessed from the connector: the electronics is buil-in the module and talks to the car via CANs and K lines. The only way to check it is to MES it for fault and I don't know if one can test individual components...

Here's the pinout.

BRs, Bernie

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Attached Thumbnails
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Name:	ABS connector 1.JPG
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Name:	ABS pinout.JPG
Views:	4
Size:	61.0 KB
ID:	202466  

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Old 3 Weeks Ago   #20
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Re: no warning lights but the ABS pump not working

Thanks bernie, useful info.....
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Old 2 Weeks Ago   #21
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Post Re: no warning lights but the ABS pump not working

Was there a brake pads change performed recently?
And done most common and wrong way (retracting dirty fluid to the ABS unit)?
Proper way is to bleed old fluid: PT 12-0001.pdf
https://www.brakebleeder.com/prevent...d-replacement/
https://www.tirebusiness.com/article...s-malfunctions
https://www.dentonisd.org/site/handl...apter%2010.pdf
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Last edited by GrandePunto PL; 2 Weeks Ago at 08:32. Reason: ...Improper disc/pad change kills ABS.
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