Background:
2004 L322 TD6 HSE AUTO developed EAS fault.
Air suspension inactive, Max 35MPH on dash, EAS led went out and stayed out.
Codes stored for RHF height sensor fault & LHR height sensor fault. Tried clearing those but they were reoccurring. Called out the AA. Patrolman checked EAS fuses, they were all okay. He found same fault codes and they wouldn’t clear. Car was then dropped off at my local(ish) independent LR garage.
They found the same faults. They tried a test height sensor and the faults remained. They then suspected wiring fault and checked that. They couldn’t find any wiring fault. They then tried replacing the sensors on a sale or return basis. RHF fault cleared and stayed clear, LHR fault remained.
They then used a test wiring loom and wired the LHR sensor directly to the EAS ECU and the fault remains. They say this and other tests they’ve carried out points to the ECU being faulty and requires replacement.
I have AA breakdown repair insurance. The AA say they will cover the cost of a second-hand EAS ECU. The Indy has come back to me and said that they can’t be sure a S/H ECU will work due to coding. The only way to be sure is to buy new and that’s about £550 inc. VAT.
I’ve had a dig around and from what I can find what the Indy says is correct. Some say a S/H ECU will work others say it won’t and it needs to be new.
Question is, has anyone any experience of replacing the EAS ECU with a second-hand unit, can it be reset and recalibrated to my/another vehicle?
I’ve also found a new, old stock ECU which I’ve passed onto the Indy which is more expensive than a second-hand part, but half the cost of a brand new part.
I’ve also found this service bulletin on the EAS ECU which I’ve passed to the Indy in the hope it helps? They’re really very good, honest folk who know LR’s inside out. They’ve not come across this fault before so no direct experience of swapping out the ECUs.
http://rangerover.x10host.com/l322/tb/LM204-001 EAS ECU Incorrect Diagnosis.pdf
More. Both front airstruts were replaced in Oct 2019 due to leaks. Indy reported at the time that the EAS wouldn't run through the full calibration setup despite them trying to get it to 2 or three times. It was within tolerance though and was working fine so they left it at that. I wonder if this was a sign that all was not right with the EAS ECU then?
Many thanks in advance. John.
2004 L322 TD6 HSE AUTO developed EAS fault.
Air suspension inactive, Max 35MPH on dash, EAS led went out and stayed out.
Codes stored for RHF height sensor fault & LHR height sensor fault. Tried clearing those but they were reoccurring. Called out the AA. Patrolman checked EAS fuses, they were all okay. He found same fault codes and they wouldn’t clear. Car was then dropped off at my local(ish) independent LR garage.
They found the same faults. They tried a test height sensor and the faults remained. They then suspected wiring fault and checked that. They couldn’t find any wiring fault. They then tried replacing the sensors on a sale or return basis. RHF fault cleared and stayed clear, LHR fault remained.
They then used a test wiring loom and wired the LHR sensor directly to the EAS ECU and the fault remains. They say this and other tests they’ve carried out points to the ECU being faulty and requires replacement.
I have AA breakdown repair insurance. The AA say they will cover the cost of a second-hand EAS ECU. The Indy has come back to me and said that they can’t be sure a S/H ECU will work due to coding. The only way to be sure is to buy new and that’s about £550 inc. VAT.
I’ve had a dig around and from what I can find what the Indy says is correct. Some say a S/H ECU will work others say it won’t and it needs to be new.
Question is, has anyone any experience of replacing the EAS ECU with a second-hand unit, can it be reset and recalibrated to my/another vehicle?
I’ve also found a new, old stock ECU which I’ve passed onto the Indy which is more expensive than a second-hand part, but half the cost of a brand new part.
I’ve also found this service bulletin on the EAS ECU which I’ve passed to the Indy in the hope it helps? They’re really very good, honest folk who know LR’s inside out. They’ve not come across this fault before so no direct experience of swapping out the ECUs.
http://rangerover.x10host.com/l322/tb/LM204-001 EAS ECU Incorrect Diagnosis.pdf
More. Both front airstruts were replaced in Oct 2019 due to leaks. Indy reported at the time that the EAS wouldn't run through the full calibration setup despite them trying to get it to 2 or three times. It was within tolerance though and was working fine so they left it at that. I wonder if this was a sign that all was not right with the EAS ECU then?
Many thanks in advance. John.
