Hello everybody, i have a problem with the odometer and i want to test the dash with a tester, i see on youtube a lot of video for test the odometer but i can' t understand what are the connections to make between the tester and the dash. This is the situation, backlight ok revcounter ok multifunctionboard ok, odometer death
Sorry for my bad english
Dashboard Test !!
Moderators: jifflemon, coyote1980, Rachel
Re: Dashboard Test !!
Hi Motorcycle77
If your only problem is the odometer is not working, then you do not need a dash tester.
The problem will be a broken odometer cog. You will need to get one, strip down the speedometer and replace it. Not complicated just a bit fiddly.
There is stuff on here about it - I'll try to find it for you Found it - see this thread viewtopic.php?f=24&t=35684
David
If your only problem is the odometer is not working, then you do not need a dash tester.
The problem will be a broken odometer cog. You will need to get one, strip down the speedometer and replace it. Not complicated just a bit fiddly.
There is stuff on here about it - I'll try to find it for you Found it - see this thread viewtopic.php?f=24&t=35684
David
Current: 1994 480 GT, 1996 460 CD & 1997 440 LE with lots of optional extras & 2007 V50 SE Sport
Previous: Celebration 331 (re-homed with Richard S), Celebration 467 (returned to Martin Mc); Celebration 346 (re-homed with Alan480); Celebration 269 (scrapped abandoned project), Celebration 73 (sold on after 6 years), 1992 ES, 1988 ES - and numerous other non-480 Volvos!
Previous: Celebration 331 (re-homed with Richard S), Celebration 467 (returned to Martin Mc); Celebration 346 (re-homed with Alan480); Celebration 269 (scrapped abandoned project), Celebration 73 (sold on after 6 years), 1992 ES, 1988 ES - and numerous other non-480 Volvos!
-
- 480 Newbie
- Posts: 5
- Joined: Sun Jul 25, 2021 7:40 am
Re: Dashboard Test !!
Thank you very much but how can i know if the problem is the cog broken or if the problem is on the sensor on gearbox or if the wiring between gearbox and the dash ?
- dragonflyjewels
- 480 Is my middle name
- Posts: 1591
- Joined: Sat Dec 18, 2010 10:38 am
- Location: Norfolk
Re: Dashboard Test !!
If it was the sensor or connections, the speedo would almost certainly be dead as well. Just the odometer is unlikely to be anything other than the cog.
Sylvia
Snazzy - 1993 Paris Blue ES red dipstick 2.0i bought 2001
Lethal Lily - 1991 White Turbo
Paris the Unicorn - 1991 Paris Edition
hubby has
Sven - 1994 Racing Green GT
Evil Eva - 1992 Paris Blue Turbo
no previous 480s - can't bear to sell any
Snazzy - 1993 Paris Blue ES red dipstick 2.0i bought 2001
Lethal Lily - 1991 White Turbo
Paris the Unicorn - 1991 Paris Edition
hubby has
Sven - 1994 Racing Green GT
Evil Eva - 1992 Paris Blue Turbo
no previous 480s - can't bear to sell any
-
- 480 Newbie
- Posts: 5
- Joined: Sun Jul 25, 2021 7:40 am
Re: Dashboard Test !!
So the odometer have another signal to go ?
- jamescarruthers
- 480 Is my middle name
- Posts: 2510
- Joined: Mon Jul 07, 2003 3:19 pm
- Location: Cambridge
Re: Dashboard Test !!
Does the speedometer needle work?
1987 Volvo 480 ES, 507274, 217 - Red (Ness)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)
Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)
Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)
- brinkie
- 480 Connoisseur
- Posts: 861
- Joined: Mon Apr 21, 2014 11:20 am
- Location: The Netherlands
- Contact:
Re: Dashboard Test !!
The electronics of the 480 speedometer work as follows:
- a sensor (pick-up coil) in the gearbox senses passing teeth of the gears
- electronics in the speedometer detect this and create two signals
-- 1. a PWM signal for the speedometer needle and infocenter computer
-- 2. a stepper motor control signal to drive the odometer gears
When the odometer is dead, it is in 99 out of 100 cases (yes I have repaired that many instrument clusters ) a broken odometer cog. These deteriorate with age and will eventually break. In approximately 1 out of 100 cases the stepper motor is dead.
When odometer and speedometer are dead, it is in 99 out of 100 cases a cold solder joint on the main board.
- a sensor (pick-up coil) in the gearbox senses passing teeth of the gears
- electronics in the speedometer detect this and create two signals
-- 1. a PWM signal for the speedometer needle and infocenter computer
-- 2. a stepper motor control signal to drive the odometer gears
When the odometer is dead, it is in 99 out of 100 cases (yes I have repaired that many instrument clusters ) a broken odometer cog. These deteriorate with age and will eventually break. In approximately 1 out of 100 cases the stepper motor is dead.
When odometer and speedometer are dead, it is in 99 out of 100 cases a cold solder joint on the main board.
Robert.
Present cars: 1994 Volvo 480 GT 2.0i, 1999 Volvo S70 2.5 Europa, 2010 Volvo V70 2.0F Momentum
Present cars: 1994 Volvo 480 GT 2.0i, 1999 Volvo S70 2.5 Europa, 2010 Volvo V70 2.0F Momentum