P38A EAS AGAIN!!!

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
D

Digweed

Active Member
Posts
120
Location
Ireland
Evening all,

Ever since I bought this car the suspension hasn't worked. Block was refurbed along with the pump, then I got a brand new pump from a friend of mine who had it sitting in the bottom of his locker for ages. Still no life out of it. I can get it pumping with the RSW software and lift the bags, did that yesterday and she still hasn't dropped but I'll be damned if I can get it to work off the switch on the dash. There are no lights coming on at all on it, I swapped out the ECU today and the switch and still nothing. Weird thing is that if I press the inhibit switch it will only light up if the headlights are switched on and the light will stay on until the headlights are switched off. I had a trawl through the archive of EAS discussions on here and found tell of the connector plugs in the footwell, I'll be checking those tomorrow when I'm back at the motor. But in the meantime is there anything else that could be causing the problem? (If it might mean something there is no power to the hevac unit either and that was changed too). 01 2.5d

D.:cool:
 
Last edited:
Have you removed the EAS bypass kit that was presumably fitted when taken off air?

Is the delay relay fitted?

If it can be triggered with diagnostics but not otherwise then the thermal switch might be fried.
 
Grrrrrr said:
Have you removed the EAS bypass kit that was presumably fitted when taken off air?

Is the delay relay fitted?

If it can be triggered with diagnostics but not otherwise then the thermal switch might be fried.
Click to expand...

I don't think it was ever taken off air. When I got it there were 4 schrader valves attached to the pipes for the bags and iirc the compressor was disconnected. All were pumped up and holding air. There is a relay fitted beside the eas ecu, tall/long one. The compressor is new/never used one from a Land Rover mechanic who had it sitting in his locker for ages. The thing that is stumping me is that inhibit switch only lighting up when pressed if the headlights are turned on and only going off when the headlights are switched off. Battery is good, starting car every time, even when left for a few days. The switch headlight thing is looking like a short somewhere but looking through RAVE I can't see where they might be connected.
 
Digweed said:
I don't think it was ever taken off air. When I got it there were 4 schrader valves attached to the pipes for the bags and iirc the compressor was disconnected. All were pumped up and holding air. There is a relay fitted beside the eas ecu, tall/long one. The compressor is new/never used one from a Land Rover mechanic who had it sitting in his locker for ages. The thing that is stumping me is that inhibit switch only lighting up when pressed if the headlights are turned on and only going off when the headlights are switched off. Battery is good, starting car every time, even when left for a few days. The switch headlight thing is looking like a short somewhere but looking through RAVE I can't see where they might be connected.
Click to expand...

The inhibit switch has two bulbs one for lighting one for active maybe the bulb has blown. https://rimmerbros.com/Item--i-STC1877 Face lighting should be green active bar should be orange.
 
Last edited:
If the switch lights up with headlights on, I'd be looking for bad earths. The ECU must be powered and the EAS relay in place or you would not be able to switch the pump on/off with diagnostics.
 
Datatek said:
If the switch lights up with headlights on, I'd be looking for bad earths. The ECU must be powered and the EAS relay in place or you would not be able to switch the pump on/off with diagnostics.
Click to expand...

Lighting up with headlamps and lighting up when active uses two different bulbs Keith. If it is working when selected but not lighting orange the bulb has blown. Unless the activation circuit runs through the bulb to prevent unwarned use.
 
wammers said:
The inhibit switch has two bulbs one for lighting one for active maybe the bulb has blown. https://rimmerbros.com/Item--i-STC1877 Face lighting should be green active bar should be orange.
Click to expand...

It's the orange bar that comes on. I'll try and put a small video on YouTube later to slow what I'm on about. Doing a search last night i found out about the two connectors in the passenger side and I'll have a look at them later.
 
wammers said:
Lighting up with headlamps and lighting up when active uses two different bulbs Keith. If it is working when selected but not lighting orange the bulb has blown. Unless the activation circuit runs through the bulb to prevent unwarned use.
Click to expand...
He's talking about the orange bar not the illumination.
 
The green switch illumination should come on with lights. The orange bar should only be lit when the switch is in the engaged position. They are two totally separate power supplies, although they do share the same ground. It should not be possible for the interior lights to switch on the orange lamp. Have a look at diagram in RAVE you will see what i mean.
 


this is what i was talking about with the lights.

I had a look at the connectors and in probably going to have to do the soldering job on them.
20181006_185100.jpg 20181006_185047.jpg
 
dubbleRR said:
Is it me or is that switch in the fog light position.....:eek: thats why it works with lights
Click to expand...

On mine I am pretty sure the 2 right hand switches are the fogs. Then going left EAS inhibit, EAS rocker select, cruise control, (actually my front parking sensors) and then high/low ratio select. Hold on, missed the hazards out. Think they're far left ... er, maybe. Can you remind me what my name is?
 
Grrrrrr said:
On mine I am pretty sure the 2 right hand switches are the fogs. Then going left EAS inhibit, EAS rocker select, cruise control, (actually my front parking sensors) and then high/low ratio select. Hold on, missed the hazards out. Think they're far left ... er, maybe. Can you remind me what my name is?
Click to expand...

Yes it should be from right to left. Front fogs (if fitted). Rear fogs. Inhibit switch, rocker switch. Looks like it's connected to the wrong plug. There will be a spare one as he has no front fogs.
 
wammers said:
Yes it should be from right to left. Front fogs (if fitted). Rear fogs. Inhibit switch, rocker switch. Looks like it's connected to the wrong plug. There will be a spare one as he has no front fogs.
Click to expand...

Thanks guys. There is a spare plug in there, black one. I'll have a check to see if the switches are plugged in wrong. Would've thought that the plugs would only go into its own switch though.
 
Digweed said:
Thanks guys. There is a spare plug in there, black one. I'll have a check to see if the switches are plugged in wrong. Would've thought that the plugs would only go into its own switch though.
Click to expand...

That is the one you need to connect to inhibit switch. White one is for front spots.
 
You are looking for a black plug. Pin # 1 Black. Pin # 2 Red/White. Pin # 3 Yellow/Grey. Pin # 4 White. Pin # 5 Two Yellow/Grey wires. Pin # 6 Two black wires. That is the plug for the inhibit switch. The plug for the front spots is identical but coloured white with different wire connections.
 
You must log in or register to reply here.

Similar threads

roger01
2000 RPM max
Replies
7
Views
497
Datatek
Datatek
K
Is my RR Classic in EAS shutdown?
Replies
12
Views
962
kevleaper
K
Montyjohn
P38A Adding a valve to manually fill EAS tank and why did my pump fail again?
Replies
14
Views
1K
Datatek
Datatek
J
P38A p38 EAS - immediate drop of pressure
Replies
11
Views
698
Mark Piercy
Mark Piercy
Flossie
P38A Eas issues
2
Replies
22
Views
1K
Datatek
Datatek
Back
Top