P38 Range Rover Mileage correction

**electromech** · 1st March, 2010, 08:14 PM

Hello any one here ever changed mileage on a Range Rover 1999 4.6 if so please give a brief explanation if possible. Thanks in advanced

**yasser** · 1st March, 2010, 08:22 PM

1. Remove dash from car.
2.Open dash and remove all internal connectors and pcb from dash.
3.You will see one BIG eeprom 28C16 i think it was NEC or something like that.
4.Desolder eeprom and solder eeprom socket on it's place.
5.Read eeprom and you will see that milleage is verry simple to change. It is not coded or secured.
6.After changing eeprom information DO NOT PUT back in dash.
7.Assemble dash and put in car.
8.Give car in ignition and wait about 20 seconds then swich ignition OFF.
9.Remove dash from car and then put chip inside.
10.Put dash in car and then give ignition ON and new milleage must be on display.

Regards.

**electromech** · 1st March, 2010, 08:26 PM

Originally Posted by yasser

1. Remove dash from car.
2.Open dash and remove all internal connectors and pcb from dash.
3.You will see one BIG eeprom 28C16 i think it was NEC or something like that.
4.Desolder eeprom and solder eeprom socket on it's place.
5.Read eeprom and you will see that milleage is verry simple to change. It is not coded or secured.
6.After changing eeprom information DO NOT PUT back in dash.
7.Assemble dash and put in car.
8.Give car in ignition and wait about 20 seconds then swich ignition OFF.
9.Remove dash from car and then put chip inside.
10.Put dash in car and then give ignition ON and new milleage must be on display.

Regards.

Thanks but the mileage in the becm will update the cluster to original anyway around that or is the fix to leave the eeprom out of cluster as explained to fool becm then refit eeprom and both milages should be the same? SORRY HATE TO BE THICK BUT ME AND THE BECM ARENT GOOD FRIENDS

**dashradio** · 1st March, 2010, 08:45 PM

Just do as he said and it will be ok
(I alway start and run the engine for about 1 minute without the chip in the dash, then refit chip)

**PremierD** · 2nd March, 2010, 08:52 AM

Originally Posted by electromech

Thanks but the mileage in the becm will update the cluster to original anyway around that or is the fix to leave the eeprom out of cluster as explained to fool becm then refit eeprom and both milages should be the same? SORRY HATE TO BE THICK BUT ME AND THE BECM ARENT GOOD FRIENDS

Mate just do as the man suggests....cos thats how you do it ..It will not update from anywhere...

**p38les** · 7th March, 2019, 01:28 PM

Hi i know this post is quite old but is it possible i could grab some more info on the eeprom file i have read it into a hex editor but can not clearly see the millage any chance you could help with some more info or an i reading it with the wrong editor.. many thanks Les

**Ace99** · 12th March, 2019, 07:01 PM

Hi did you get any more info. I'm trying to do the same, can read the eeprom but can't see any logic in the numbers displayed.

**clusters** · 12th March, 2019, 07:18 PM

Post your file and someone can correct it for you.

Edit: Never mind, saw your other post now.

**Ace99** · 12th March, 2019, 09:09 PM

I now know how to sort it. Send a copy of the file and I will talk you through it. It took a lot of playing but I can now work out mileage from bin file and edit file to mileage required.

**madles** · 24th December, 2021, 12:14 PM

Originally Posted by Ace99

I now know how to sort it. Send a copy of the file and I will talk you through it. It took a lot of playing but I can now work out mileage from bin file and edit file to mileage required.

Are you still able to help work out the mileage please, i can change the out put but not able to work out what i need to change to get an exact reading