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Advice please : My 2003 S, is trying to engage LOW RANGE whilst I am motorway driving


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Hi guys,

 

I'd appreciate some advice, I have trawled the forum but can't find a similar issue.

In the last couple of trips I have noticed that my Cayenne S 2003 has tried a couple of times to engage 'low range' whilst I have been cruising on a motorway, without any request from me. I was travelling at approx. 60 MPH  and the air suspension began to raise to high level - I quickly requested low level on the rocker and it complied no problem

A few miles later on it tried again and I notice the low range rocker flashing (square indicator) whilst the car and dash was moving the vehicle to high level once again - I again stopped this this by requesting low level at the rocker.

I am not getting any shuddering, deceleration or clunking but I am noticing that the high/low range rocker is flashing occasionally and on 3 or 4 of those occasions this has tried to alter the ride height - this was over a 400 mile trip on a motorway.

 

I would appreciate any direction or advice you can offer.

 

Thanks & best regards, Cornelius.

 

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7 hours ago, Cornelius said:

Hi guys,

 

I'd appreciate some advice, I have trawled the forum but can't find a similar issue.

In the last couple of trips I have noticed that my Cayenne S 2003 has tried a couple of times to engage 'low range' whilst I have been cruising on a motorway, without any request from me. I was travelling at approx. 60 MPH  and the air suspension began to raise to high level - I quickly requested low level on the rocker and it complied no problem

A few miles later on it tried again and I notice the low range rocker flashing (square indicator) whilst the car and dash was moving the vehicle to high level once again - I again stopped this this by requesting low level at the rocker.

I am not getting any shuddering, deceleration or clunking but I am noticing that the high/low range rocker is flashing occasionally and on 3 or 4 of those occasions this has tried to alter the ride height - this was over a 400 mile trip on a motorway.

 

I would appreciate any direction or advice you can offer.

 

Thanks & best regards, Cornelius.

 

Fault Codes would be good if any? 

Also check for corroded wires under front foot Wells and also wires under both seats. 

As both the suspension and transfer low / high range are separate controller and equipment it sounds like a wiring or weird control modules error. 

Very strange. It shouldn't raise at highway speeds anyway by default setting. It should lower at speed and then return to normal when you are at slow speed or stopped. 

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Hi Lewis,

Thanks for replying - No codes just yet unfortunately, I need to acquire a diagnostic tool, I think that is likely to be a good investment.

Thanks for the direction on the wiring - I'll look in to this over the weekend.

Thanks & kind regards,

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