Japanese import,air suspension codes

[Bill Preston]

Good morning all, hope i'm doing this right as new on here,we have a 99 p38 4.0 se Japanese import owned since 2011 and enjoyed occasional use, done about 20k miles since purchase and now has 62k miles on clock.Anyway it has pretty much always had an issue with air suspension when after a few weeks of not being used over the first twenty miles or so the dashboard would light up and usual message display on dash,i would correct this with eas kicker light purchased from ebay,this would happen three times and would then be fine for rest of time car being used,car then laid up for few weeks then same happens again.Car used a couple of weeks ago and went nine times in thirty miles,still resets perfectly but just a pain not knowing how far it will go before fails again,hoping to go to Gaydon this weekend.Car went into a local land rover man for a couple of other jobs and went in with fault present so i asked if he could read the codes and repair whatever needed,this is where it has got complicated as it has thrown up a code which he does not recognize,So i suppose i have a couple of questions here. 1. any ideas what the suspension problems may be and 2 is there a fault code difference between Japanese and English range rovers.

 

[elbekko]

I don't think there's a difference in fault codes. After a few weeks of sitting, is it sitting on the bumpstops, or are the bags still inflated?

[Bill Preston]

15 minutes ago, elbekko said:

I don't think there's a difference in fault codes. After a few weeks of sitting, is it sitting on the bumpstops, or are the bags still inflated?

Thanks for reply, it usually is left on normal setting  but on return to car it can still be as 

left it can have gone down on one side usually but not always nearside,front or rear could have gone down,in other words totally random

[Ally V8]

By coincidence I look after a Japanese 4.6v8 P38. Its a 1998 50th anniversary model with about 40k on it. Just last week it was in for an EAS fault,which was caused by the drive pack failing on the valve block. It gave codes for something like RHF signal incorrect. Which it clearly wasn't. After a bit of diagnostic checking and subbing over a secondhand drive pack normal service was resumed.

The point of me telling you this is that the codes don't always pinpoint the exact fault, but the good news is that the Japanese cars had the same ecu,codes are the same etc. Can you tell us what your car reported ?

[Bill Preston]

Thanks for reply,i think code came up as something like sensor out of range, but cannot confirm as mechanic away for few days.

[Ally V8]

Sensor out of range is usually where the car is driven on its bumpstops or the same but with a bumpstop missing.This allows the axle to deflect more than hence the out of range signal.If the car is left long enough to settle right down I always advise customers to let the air build up and get the car off the ground before driving off.

[elbekko]

Indeed, or parked slightly cross-axled and went down to the bumpstops. Or sometimes even the rear starts going up, and throws the front just out of range.

Not that uncommon an error. But it's a soft fault, so should clear automatically.