Page 1 of 1

ABS ECU not visible

Posted: Wed Oct 26, 2022 6:42 am
by RobS
Hi all,

I have a 2010/11 R51 2.5cdi EU spec.

Had a problem occur in which the abs doesn't work and the typical various dash lights are constantly on . But, the problem is that the Nissan dealer diagnostics cant find the ABS ECU … like its just not there … so that’s the first problem. I sent the ECU for testing and it is ok. Have checked wiring harness etc also seems ok.

Any ideas ? I will check and check again the wiring but thought I’d throw this out just in case someone has had experience of the same fault.

Thanks for any help :-)

Re: ABS ECU not visible

Posted: Wed Oct 26, 2022 6:54 am
by VStar650CL
If it's set up similar to US vehicles, the ABS should be able to communicate on the K-line (DLC pin 7) as well as the regular CANbus lines. Try an ABS-capable shop scanner instead of the Consult3+ used by the dealer, C3+ doesn't read the K-line and may show the ABS as absent when it simply can't communicate on CAN.

Re: ABS ECU not visible

Posted: Wed Oct 26, 2022 7:37 am
by RobS
Hi VStar

Thanks. Will try tomorrow :)