sierrafery
Well-Known Member
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And the same code is stored again or it doesnt even clear ?
It clears then is logged again. Clearing it does appear to work on the nanocom screen as it then shows no faults until I restartAnd the same code is stored again or it doesnt even clear ?
Ok, thanks again for your help. I’ll check resistance again tomorrow (is there a figure I “should” be getting or just the same as pin 10?)So if the resistance and circuit test with nanocom works on that OV the same like the other dont rush to spend money on a modulator, you'll have to double check the fault code with hawkeye or other compatible tool cos i've seen cases when nanocom reported false codes in relation with the SLABS ECU but if the code is the same with other tool too i'd suspect the ECU rather than the modulator
Ok, thanks again for your help. I’ll check resistance again tomorrow (is there a figure I “should” be getting or just the same as pin 10?)
And stupidly I don’t have the old ecu anymore, something that I’m now annoyed about!!
The SLABS ECU was replaced about 9 months ago (long story but a friend had a good working SRD500070 ecu that he gave me - attached) and it’s been faultless with no issues until yesterday, not that that’s any indication!!
will try to find someone with a Hawkeye locally
have a good Christmas
Will do. Thank you again for all the helpI dont know the exact resistance, if you get the same like pin 10 it's OK, eventually check at ECU connector C0506 pins 7 and 10 too
I’m certainly not but have a mate who is pretty good with electrics so will ask him - certainly worth a shotIf you are skilled enough to unpin the wires at the ECU or modulator would be a good test to swap the RLOV with RROV wires then check the code again
I didn’t no, a good suggestion. Will try that in the morning along with fitting the new hub and sensor when that arrivesBTW did you test the outputs for all the 8 valves ? worth a try cos if nanocom mixed them up as it used to do ocasionally with sensors maybe you find the circuit which is at fault in reality if that's the case
You can also watch inputs with nanocom so better use all the diagnostic capacity of it in that area
INPUT ABS
.......
Inlet valve: This shows the voltage being applied to this valve by the SLABS ECU. When
driven, the voltage should be around 2.8 to 3.6 Volts and when not being driven, should
be around 0 to 0.5 Volts.
Outlet valve - Front Right, Front Left, Rear Right, Rear left: This shows the voltage being
applied to this valve by the SLABS ECU. When driven, the voltage should be around 2.8
to 3.6 Volts and when not being driven, should be around 0 to 0.5 Volts.
......
Thanks @NPG will have a read today and will see if I can record the abs on nanocom.In addition to @sierrafery's guidance, here are some additional web links with procedures and important parameters that might help you troubleshoot this problem :
https://www.roverparts.com/techtips/shuttle_valve_switches_test_proc.cfm
https://blackbox-solutions.com/help/SM016.html
https://www.rswsolutions.com/index.php/discovery-ii-abs-system
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