Rover 75 Club - New Instrument pack/trip computer retro fit. Help needed. - MG-Rover.org Forums
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post #1 of 112 (permalink) Old 31-10-2005, 20:36 Thread Starter
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Rover 75 Club - New Instrument pack/trip computer retro fit. Help needed.

I've just bought a new instrument pack for my 75. Its a club model and is fitted with the basic clocks with warning light display. The new clocks have the lcd dot matrix display at the top.

I fitted them this morning and all the pictorial warnings seem to be showing correctly in the display (glow plugs, doors open etc). The rev counter, speedo, fuel, trip, coolant temp and outside temp gauges are working fine. My only problem is that the mileage is showing as 999999. On replacing my old clocks the mileage goes back to normal. Also, the auto gearbox "selected gear" display is active on the new one, my old pack has this but it is not illuminated.

Can anybody give me any pointers? Do I need to have the new clocks coded to my car with testbook? My workshop manual doesn't say anything about this.

Thanks in advance.
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post #2 of 112 (permalink) Old 31-10-2005, 21:20
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Can you explain what you mean about auto selected gear display please? I assume your car is an auto? Are the old clocks correct or the new one?

The i pack is supposed to be coded to the car. The i pack holds the mileage data and a backup of the mileage is stored on your Lighting control module. A specialist digital mileage frigger should be able to sort this. Although i suspect once coded to the car this would possibly right itself.

Only problem is im not sure how many times an i pack can be coded.
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post #3 of 112 (permalink) Old 31-10-2005, 23:00 Thread Starter
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Quote:
Originally Posted by MattL
Can you explain what you mean about auto selected gear display please? I assume your car is an auto? Are the old clocks correct or the new one?

The i pack is supposed to be coded to the car. The i pack holds the mileage data and a backup of the mileage is stored on your Lighting control module. A specialist digital mileage frigger should be able to sort this. Although i suspect once coded to the car this would possibly right itself.

Only problem is im not sure how many times an i pack can be coded.
Car is a manual 2.0 CDT. Transmission display doesn't light up on my old i pack. Going to take it to the dealer and have a quiet word with the boys through the back, see if they'll stick it on testbook for me.
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post #4 of 112 (permalink) Old 01-11-2005, 05:01
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Good luck!
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post #5 of 112 (permalink) Old 01-11-2005, 06:48
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Pretty sure this will have to be set up at a dealers
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post #6 of 112 (permalink) Old 01-11-2005, 15:52 Thread Starter
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After reading the system description on RAVE. The i pack confirms it has the same VIN as the light control unit before it will show a mileage. Need to get the VIN changed at the dealers.
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post #7 of 112 (permalink) Old 01-11-2005, 15:59
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Quote:
Originally Posted by Ross R75
After reading the system description on RAVE. The i pack confirms it has the same VIN as the light control unit before it will show a mileage. Need to get the VIN changed at the dealers.
Just as i thought then. I love being right.
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post #8 of 112 (permalink) Old 01-11-2005, 16:01
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Just as i thought then. I love being right.
lol... smart ar5e
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post #9 of 112 (permalink) Old 01-11-2005, 16:04
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lol... smart ar5e
I was actually being modest.
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post #10 of 112 (permalink) Old 01-11-2005, 16:21
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So does this mean (if I can find one) that I can fit the instrument pack with the clevertrevor graphic display to mine too without major surgery, just a visit to the dealer to get it to shake hands with the control module?

If so, might be time to start hunting!
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post #11 of 112 (permalink) Old 01-11-2005, 16:32
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As long as they can reflash the i pack then yes. Pretty sure they can but thats the one thing im not sure about, i know they can do new ones but im not sure about a used item.
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post #12 of 112 (permalink) Old 01-11-2005, 18:00 Thread Starter
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If its a standard EEPROM they'll be able to reflash it. I'd be amazed if it was anything different.
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post #13 of 112 (permalink) Old 04-11-2005, 09:40
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instrument pack problem

Just to confirm a new pack has to be reprogrammed using the diagnostic equipment "T4" at your rover dealer. They need to download the information from your old instrument pack, install the new pack and then upload all of the information.

The new pack is then coded by the chassis number to the vehicle and to my knowledge cant be changed there after, therefor you are unable to reuse second hand instrument packs.

hope this helps
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post #14 of 112 (permalink) Old 04-11-2005, 11:49 Thread Starter
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Quote:
Originally Posted by rvr garage
Just to confirm a new pack has to be reprogrammed using the diagnostic equipment "T4" at your rover dealer. They need to download the information from your old instrument pack, install the new pack and then upload all of the information.

The new pack is then coded by the chassis number to the vehicle and to my knowledge cant be changed there after, therefor you are unable to reuse second hand instrument packs.

hope this helps
I've spoken to my Rover dealer about this. The instrument pack can be re-programmed as its a standard EEPROM chip, the same as your ECU memory. There is no way of making an EEPROM chip an once only chip, if it can be written once, it can be written again.
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post #15 of 112 (permalink) Old 04-11-2005, 12:11
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Quote:
Originally Posted by Ross R75
I've spoken to my Rover dealer about this. The instrument pack can be re-programmed as its a standard EEPROM chip, the same as your ECU memory. There is no way of making an EEPROM chip an once only chip, if it can be written once, it can be written again.

Interesting. All that I have been told and read in the past said that a s/h 75 pack couldn't be re-programmed to a different car, and I guess there will be security implications if they can.

Please keep us informed as to when you get the one you have reprogrammed.

Cheers

Mike
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post #16 of 112 (permalink) Old 04-11-2005, 12:13
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When are you having it done then Ross? Are you going to let us know how you get on at the dealer?

The EEPROM can always be reflashed with a chip programmer but if its done via diagnostics port then it is probably being flashed via another device which CAN have a software counter in it, thus making it alot harder for you to recode things.
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post #17 of 112 (permalink) Old 04-11-2005, 12:27
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In response to Ross 75, appologies for the wrong info in my last thread.

I just had had a chat with one of the techys in the workshop. Ross 75 is correct that a second hand instrument pack can be used. The Techy said that there is only one problem, the mileage is something that can not be decreased so if the instrument pack you are using has come from a car with higher mileage you cant alter it to your own lower mileage.
If this is the case and you can find a used lower mileage instrument pack then thats great because from memory a new one is several hundred quid.
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post #18 of 112 (permalink) Old 03-12-2005, 21:29
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Did you get it to work in the end?
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post #19 of 112 (permalink) Old 29-01-2006, 09:44
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Quote:
Originally Posted by jamescj

A bit of a challenge - but that is part of the fun Has anyone any updates on this??? RossR75??
A bit of a challenge sounds about right. I'd love to upgrade to the trip computer at some stage. I follow your progress with interest.

If you do the work yourself, take some snap shots while you're at it.
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post #20 of 112 (permalink) Old 29-01-2006, 15:18
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Following this thread with great interest!

Can the new display show which door is open, or just "a" door?

Keep us posted on your progress Chris, if you can pull this off, I'll be buying one on ebay tomorrow

(er, well, whenever you do confirm its recalibrated to correct mileage and new stalk controls mpg etc!)
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