P38A eas sensor problem

enery8 · Oct 22, 2018

Hi Gents, I have a problem with a rear height sensor. Bought a new one (dunlop) and sent it to the repairer who does most of the work on my rangy. He fitted it and it is worse. I spoke to Sam at Island 4x44 and he told me it is most likely a wiring fault so I wondered if any of you Gents had come across this problem and if there is a typical area you might identify where this fault might occur.

Saint.V8 · Oct 22, 2018

Need a little more info on what is/has/was happening....why you needed to change out the sensor, what the symptoms were etc etc....

wammers · Oct 22, 2018

What is worse? The new sensor will need to be calibrated, they are not just plug and play unless you are very lucky.

Datatek · Oct 22, 2018

enery8 said:
Hi Gents, I have a problem with a rear height sensor. Bought a new one (dunlop) and sent it to the repairer who does most of the work on my rangy. He fitted it and it is worse. I spoke to Sam at Island 4x44 and he told me it is most likely a wiring fault so I wondered if any of you Gents had come across this problem and if there is a typical area you might identify where this fault might occur.

How do you know you have a problem with a rear height sensor? Have you run diagnostics? If you have run diagnostics, what faults, if any were shown?

enery8 · Oct 22, 2018

I have a 'Hawkeye' fault code reader that showed the fault as real left height sensor. it could not remove the fault so i bought a new unit from Island 4x4. However, when the local garage fitted it ( he did seem to know what he was talking about and mentioned calibration) it came back worse than it went in. I spoke to Sam at Island 4x4 and he reckoned it was likely a wiring fault , loose connection/break and that is what I am asking, has anyone come across this and an area to look.
Thanks in advance
Bill

Datatek · Oct 22, 2018

enery8 said:
I have a 'Hawkeye' fault code reader that showed the fault as real left height sensor. it could not remove the fault so i bought a new unit from Island 4x4. However, when the local garage fitted it ( he did seem to know what he was talking about and mentioned calibration) it came back worse than it went in. I spoke to Sam at Island 4x4 and he reckoned it was likely a wiring fault , loose connection/break and that is what I am asking, has anyone come across this and an area to look.
Thanks in advance
Bill

I would say that other than corrosion in the connector, a wiring fault is unlikely.
With the RSW software, you can see live readings from the sensors which would confirm if a sensor was actually working or not, can you not do this with Hawkeye?

Saint.V8 · Oct 22, 2018

what is 'worse' ??????

What was it doing before and now after....????

wammers · Oct 22, 2018

Saint.V8 said:
what is 'worse' ??????

What was it doing before and now after....????

I have asked that strange as it might seem, knowing what the problem is usually results in an answer. Maybe you Keith and i should organise a conference call so that all our crystal balls can work in unison.

enery8 · Oct 22, 2018

Datatek said:
I would say that other than corrosion in the connector, a wiring fault is unlikely.
With the RSW software, you can see live readings from the sensors which would confirm if a sensor was actually working or not, can you not do this with Hawkeye?

Hi keith, I don't know if I can see live readings on Hawkeye, I will check and report back, corrosion sounds like a possibility however

enery8 · Oct 22, 2018

Saint.V8 said:
what is 'worse' ??????

What was it doing before and now after....????

with the original the fault was intermittent but now it is permanent, I am going to put the old unit back and see how that goes

wammers · Oct 22, 2018

Oh dear.

DanClarke · Oct 22, 2018

Good luck. But what we are all dying to know is what the fault symptom is from a ride-height point of view not a "Hawkeye says" point of view.
Is it a drooping/too-high corner or what?

enery8 · Oct 22, 2018

DanClarke said:
Good luck. But what we are all dying to know is what the fault symptom is from a ride-height point of view not a "Hawkeye says" point of view.
Is it a drooping/too-high corner or what?

no, none of those just a load of xmas lights on the dash. it seems to be operating normally?????

wammers · Oct 22, 2018

enery8 said:
no, none of those just a load of xmas lights on the dash. it seems to be operating normally?????

Do you get all lamps solid on and a message on the dash EAS fault slow 35 mph?

enery8 · Oct 22, 2018

Lamps start normal then flash until the car moves then they go permanently on, text on dash says eas fault, no slow 35mph

wammers · Oct 22, 2018

enery8 said:
Lamps start normal then flash until the car moves then they go permanently on, text on dash says eas fault, no slow 35mph

Ok look for a bad connection on plug to height sensor or on pins 2 and 4 on EAS ECU.

Datatek · Oct 22, 2018

enery8 said:
Lamps start normal then flash until the car moves then they go permanently on, text on dash says eas fault, no slow 35mph

That is a what I have just had on my project car, it was corrosion in the rear N/S height sensor connector. The car did not drop to the bump stops and did not flag the "Slow 35Mph" message, I did 200Km like that.

enery8 · Oct 22, 2018

Thanks Wammers and Datatek I will check those points tomorrow and update the forum

enery8 · Oct 31, 2018

Thanks to Wammers and Datatek for your help. Finally got around to checking connections and found corrosion on pin 2 on ecu. However, I have now found I need a new height sensor on the osr which I am going to have fitted by my local garage. I will report back again when it is done.
Thanks again gents
Bill

Datatek · Oct 31, 2018

enery8 said:
Thanks to Wammers and Datatek for your help. Finally got around to checking connections and found corrosion on pin 2 on ecu. However, I have now found I need a new height sensor on the osr which I am going to have fitted by my local garage. I will report back again when it is done.
Thanks again gents
Bill

Does the garage know how to calibrate the suspension? Unless you are lucky, it will need doing.

P38A eas sensor problem

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