Thread: ACE.

Originally Posted by Tins

Say WHAT?? Lordy.

Sensor, not spot John!!

Originally Posted by V8Ian

I occasionally get a red or amber "the doors are falling off" light, on the dash.
Nanocom has recorded an 18-04 fault. Can anyone decipher or explain this, please?

Hi, as long as it's intermittent it's hard to diagnose, usually this means that the pump is on the way out, if you can see serious fluid activity in the reservoir at idle you are still on the safe side, next time when it happens dont stop the engine and while the warning is on remove the ACE relay, make bridge with a piece of wire across the thicker cavities(where the contact goes) then read live inputs with nanocom and post them here and i'll tell you what's the problem. Unfortunately there is a big chance that the ACE fault code retrieved by nanocom to be false(that's a known glitch) so you can't rely only on that but the live readings are accurate. You can't read data while the warning is on cos the relay is open and the ECU has no feed that's why the bridge is needed...here's the list of readings took from a well working system

ACE INPUTS


1. DCVs (both) - .001A
2. Pressure control valve: 0 - .012A
3. Pressure sensor: varies between 16 and 19 but if it's out of that range the transducer is gone
4. Residual pressure: between 3 - 6 Bar but can be higher after the vehicle was driven or the ambient temp is low
5. System pressure: around 6 Bar fluctuating
6. Accelerometers: 0.01

for troubleshooting purpose: the resistance of both DCVs(top of the valve block, DCV1-toward front; DCV2-toward rear)= 2.7 Ohm, pressure control solenoid(on the left side of block) = 5.7 Ohm.

If you ever need one in a hurry I have a new ram sitting in the shelf Ian.
And my poverty pack car doesn't even have ACE. (projects )

Originally Posted by V8Ian

Yes John, the Nanocom told me the fault code.

Is there a speaking version? Mine didn't talk.

Originally Posted by Tins

Is there a speaking version? Mine didn't talk.

There are more than oral forms of communication, at least in Queensland.

Originally Posted by V8Ian

There are more than oral forms of communication, at least in Queensland.

yes. I've seen some of them, usually from car windows.

Originally Posted by Tins

yes. I've seen some of them, usually from car windows.

Well, you are from Victoria.

Our first D2 had ACE.
All I can remember was the clicking of the solenoids located somewhere under the vehicle, clearly constantly heard by the driver.
I think later models were different.

The serpentine belt used to also squeal at times, the dealer couldnt sort it.Thats just what they do, i remember the then service manager at Austral told me.

Anyway,the later D2a was great,no ACE,no SLS,so less to go wrong.

Anyway,back on topic,Ian should be all sorted in the next day or so, if he follows the helpful post, number 23.