D2 ABS Outlet Valve open circuit

Ed Cheung

Well-known member
Aug 23, 2006
1,584
2
Hong Kong
Here is the problem, have done the shuttle valve wiring bypass, down with 2 error codes, Outlet Valve open circuit on front left wheel and rear right wheel. Clear it and keep coming back. Measure the ohms on all 4 wheels and they are all literally the same. The measurements are done even right at the plug onto the ABS module.
So what should I do to get this clear?875C8820-E3F3-4B86-97CC-67EC8CD0F3B8.jpeg5A94C7BB-52E5-413C-A226-216C6FB4B813.jpeg
 

discostew

Well-known member
Sep 14, 2010
7,735
1,026
Northern Illinois
Check your terminal tension at all the connectors. That reading thru the valve is probably good but you should compare it to a circuit the ecu isn’t bitching about. Then also you should check it like the ecu is checking it. Look at the schematic and measure what’s coming back to the ecu after passing thru that valve. Until that valve is a load it’s a cundictor. A lot of times these things fault out during the circuit check, but if yours faults out when it’s trying to operate the valve you would still see it on that return or low side of the circuit. To me that resistance reading doesn’t really help much, as you can see. So look at voltage.
 

Ed Cheung

Well-known member
Aug 23, 2006
1,584
2
Hong Kong
Kind of slow on this, but finally took care of of it, give up testing it so bought one more abs sensor to try it, this time a longer wire one as I needed an extended wire one anyway, same result. So the is literally nothing wrong with the hub/sensors end. Went to the breaker/junkyard get another abs pump for £45 (even have a decent shuttle valve with it,lol) put it on. Plug in the nanocom and clear all error. Shut off the car. Re-start the car and clean off all the lights.
At the breaker, the same truck I got off the abs pump have a LPG kit in it, the place is selling it to me for £150 for everything with tanks,lol. That’s one the price of one tank of gas!