P38A EAS in hard fault mode can I bypass relay

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EntropyUK

Well-Known Member
Posts
467
Location
Hemel Hempsted
As per the title. Experienced a hard EAS fault and now on bump stops (dentist booked after drive home). I am trying to run through Wammers diagnostic post in the tech archive. I understand that the system is now powered down. Can I test/run the pump by bridging the pins on relay 20?
 
EntropyUK said:
As per the title. Experienced a hard EAS fault and now on bump stops (dentist booked after drive home). I am trying to run through Wammers diagnostic post in the tech archive. I understand that the system is now powered down. Can I test/run the pump by bridging the pins on relay 20?
Click to expand...

What have you got on dash 35 MPH warning and all lamps on? Do you not have diag? Top scenario is that you have a leak and compressor has failed feeding it. Even if you bridge relay and compressor runs it does not mean it will run off ECU.
 
Last edited:
Yes Wammers I have the 35Mph message of death and all the associated bleeping.

Grrrrr is coming over with his Nanocom this evening. I was planning on running through your diag list in order to make sure that it is a leak rather than poorly performing compressor pump causing the problem.
 
EntropyUK said:
Yes Wammers I have the 35Mph message of death and all the associated bleeping.

Grrrrr is coming over with his Nanocom this evening. I was planning on running through your diag list in order to make sure that it is a leak rather than poorly performing compressor pump causing the problem.
Click to expand...

Best to look at it with diag. Even if the temp cutout has failed you should be able to run the compressor with Nanocom and do the pressure and diaphragm tests that way. Good luck.
 
It seems the with the air temperature rising these pumps are struggling. I've rebuilt 2 today & another two range rovers are due in with the same problem.
Although the pumps are running, make sure they're sucking in the air by using your finger, thin paper trick.
These pumps respond well to a new piston seal kit.
I've noticed these faults always come around at roughly the same time, when the temperature rises.
 
Rick-the-Pick said:
It seems the with the air temperature rising these pumps are struggling. I've rebuilt 2 today & another two range rovers are due in with the same problem.
Although the pumps are running, make sure they're sucking in the air by using your finger, thin paper trick.
These pumps respond well to a new piston seal kit.
I've noticed these faults always come around at roughly the same time, when the temperature rises.
Click to expand...

I reckon you're right. Comparison of @EntropyUK and my car. Bear in mind his was too short a trace really, just round the block, whereas mine was a decent run. I think the pump is running too much and possibly the front bags might be wearing.

EAS_EntropyUKvsGrrrrrr_20170410.jpg
 

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  • EASlive_20170410.zip
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Thanks everyone,it was a sensor 'out of range error' fault that caused the problem which I think was my my fault. Grrrr's gracious assistance had me back on the road in no time by using his Nanocom to clear the fault. I'll post a new thread with the problem.
 
brianp38dse said:
If some one could work out the software for eas on an android phone that would be a godsend :)
Click to expand...

Talk to Storey Wilson. I think the original EAS unlock had quite a few people working on it. It is open source so presumably could be recompiled for Android. Hardest part will be getting one of those ELM327 bluetooth jobbies to talk to the EAS computer through the ODB socket. Maybe someone could contact Ian Hawkings of Torque fame and see if he could add it as an add-in to Torque.
 
Grrrrrr said:
Talk to Storey Wilson. I think the original EAS unlock had quite a few people working on it. It is open source so presumably could be recompiled for Android. Hardest part will be getting one of those ELM327 bluetooth jobbies to talk to the EAS computer through the ODB socket. Maybe someone could contact Ian Hawkings of Torque fame and see if he could add it as an add-in to Torque.
Click to expand...

I've e-mailed him. You never know.
 
oakey said:
Where did you get all that data from GRRR?
I have a nano but that looks awffy complicated
Click to expand...

You press the disk symbol while you are looking at the Inputs screen. Think it was inputs. You take a live trace for as long as you want (or the ignition is switched off). Copy yhe csv to your laptop and then just dump it into Excel and manipulate. Can do that bit for you if you're a bit unused to using Excel. Or just copy the file in the zip, drop your data in and fill down rows as required and edit formulas.
 
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