|
||
|
18th December 2019, 16:38 | #1 |
Newbie
Rover 75 tourer Join Date: Jul 2019
Location: Chichester
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
|
radiator fan constantly running
Hi my 2005 Rover CDTi Tourer has gone from a reliable trusted friend to a shambles in one weekend. First I noticed the electrics doing strange things such as the fuel gauge rising towards full and then the radiator cooling fan running at full chat.and continuing to run until I disconnected the battery. After leaving the car dormant for a week with the battery disconnected I finally got round to connecting it again. The fan started immediately and continued to run.
I then noticed when I started the car that the mileage is now showing 999999 Any advise greatly appreciated Blowsy |
18th December 2019, 17:11 | #2 |
This is my second home
Rover75 and Mreg Corsa. Join Date: Nov 2006
Location: Sumweer onat mote o'dust (Sagin)
Posts: 21,751
Thanks: 341
Thanked 3,660 Times in 2,924 Posts
|
Have you had any unusual battery issues? Have you needed a jump start recently?
The 999999 problem is usually due to a voltage spike following a battery problem, so the system's memory chip (EEPRO) is corrupted. Unfortunately, this isn't a DIY fixable problem. You'll need a T4 specialist who can rewrite the EEPROM. Marinabrian does a postal service on this. See: http://www.the75andztclub.co.uk/foru...d.php?t=184727 Your fan issue may or may not be related. I'd guess at not. Statistically, diesel fans go awry mainly due to a component failure in the control box circuit board. I'm sue you'll get more on these in a mo. TC |
18th December 2019, 17:12 | #3 |
Give to Learn
Freelander 2 Join Date: Aug 2010
Location: West Midlands
Posts: 18,651
Thanks: 1,155
Thanked 6,407 Times in 3,874 Posts
|
Hi Christopher.
Have you checked the plenums sounds like the ECU could be swimming or as at least got wet, also have you jump started the car recently as that can cause the 999999 problem, if so then a new EEprom or one from another IPK then introduced to the car with a T4 Drop Big Russ, Brian or Trikey a PM I am sure they will be able to help, thay may even see this post PS Cyrano beat me to it
__________________
Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise " |
18th December 2019, 17:19 | #4 | |
Loves to post
Rover 75 Tourer Join Date: Sep 2011
Location: Leeds
Posts: 494
Thanks: 68
Thanked 76 Times in 43 Posts
|
You and I alike (see earlier post)! In my case though, it's just the high speed fan that won't cut out. I've had to remove the 80A fuse for now and will have to wait until the new year to get it fixed.
Quote:
|
|
19th December 2019, 10:11 | #5 |
Newbie
Rover 75 tourer Join Date: Jul 2019
Location: Chichester
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
|
Thanks for the information, I will run through the Christmas break and see . The battery was put on charge before I reconnected it; so I guess that's what has done the mileage. I have another 75 so will use that for now.
Have a great Christmas . Blowsy |
2nd January 2020, 10:36 | #6 |
Newbie
Rover 75 tourer Join Date: Jul 2019
Location: Chichester
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
|
cooling fan ECM
HI ,Happy New Year to you all.
I am in need of a replacement cooling fan module {ECM} This appears to be the fault with my constantly running fan. 2005 Rover 75 tourer CDTi Any pointers?? Thanks |
2nd January 2020, 11:05 | #7 |
This is my second home
Rover75 and Mreg Corsa. Join Date: Nov 2006
Location: Sumweer onat mote o'dust (Sagin)
Posts: 21,751
Thanks: 341
Thanked 3,660 Times in 2,924 Posts
|
Diesel systems are quite often affected by failure of the printed circuit board in the control box (the one with the relays). Is that what you mean? If so, check out the threads by FrenchMike, who fixes them.
TC |
2nd January 2020, 11:43 | #8 |
Newbie
Rover 75 tourer Join Date: Jul 2019
Location: Chichester
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
|
cooling fan ECM
Hi thanks for the info, its the Siemens control box attached to the fan assembly
|
2nd January 2020, 12:37 | #9 | |
Give to Learn
Freelander 2 Join Date: Aug 2010
Location: West Midlands
Posts: 18,651
Thanks: 1,155
Thanked 6,407 Times in 3,874 Posts
|
[QUOTE]
Quote:
Hi Christopher. Do you have the fan off the car, have you opened the control box? does your car have a silver resistor? what is wrote on the control box PWM2 or M47 most likely a relay sticking or the PCB board faulty.
__________________
Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise " |
|
2nd January 2020, 13:06 | #10 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
Posts: 20,265
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
|
Not the ECM
Quote:
Just to clarify what others have said, the fault lies inside your fan control box. Try to avoid using the abbreviation 'ECM' which can cause confusion. It specifically stands for Engine Control Module and is used only to describe the master electronic unit located at the base of the windscreen. Arctic will be able to help you find the problem with your fan control box. Simon
__________________
"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
|
Thread Tools | |
Display Modes | |
|
|