Electrics: 70: - speedo

src · Oct 2nd, 2009, 11:49

I have just brought another volvo, this time a v70 estate 1999, and the speedo is not working. When starting the needle goes right round to the right - the radio comes on loud - and the miles traveled above the total miles starts to count up and then it stops the needle goes right back to the left and than the radio goes down in volume and from then on the needle does not move! can anyone help or point me in the right direction.

FCPGroton · Oct 2nd, 2009, 15:56

WOW, that is some electrical issue you have there. I would just start going through and checking all the wiring for shorts and the like.

alv70d1999 · Oct 2nd, 2009, 19:02

could be a voltage spike..... get the alternator checked out

pacman67 · Oct 2nd, 2009, 22:26

Hmmm, that sounds more like a broken track on the pcb of the dash. Try thinking whats common to the radio and the speedo. Is there remote volume on the 99 model? It could be a bad earth around the dash somewhere, as said before look at connectors to the dash clocks and the stereo. Has someone tried to fit a different stereo in it in the past and butchered the wiring? Does the fault clear if you unplug the stereo?
ps modern dashboards have self test modes, some fords if you hold the trip button in and turn the key the dials will spin up and then reset, so could be a dash fault. Good luck.

FaKaWi · Oct 2nd, 2009, 22:31

Yes, the stereo volume is connected to vehicle speed on these cars. Faster you go, louder it gets, hence why your volume goes up then down with speedo needle.

pacman67 · Oct 2nd, 2009, 23:11

Sorry to clarify, does it have remote volume ie on the steering wheel or on the stalks, the auto volume may me on the stereo itself and just alters te volume dependant on cabin noise due to extra speed, cant remember exactly how it senses, ages since i worked on them, i was looking for something common to the stereo and the dash, as mines a 98, wasnt sure if the stereo controls were the same.

acshortt5 · Oct 3rd, 2009, 10:49

The speedo is powered by the abs system - might be worth checking that out as well, could be dry joints in the ABS ECU.

src · Oct 9th, 2009, 08:47

Many thanks to everyone who sent me info I will try these out I have also found that when you push the speedo panel it moves back and foth as if someone had taken it out and not put it back right and teh top cover over the streeing column is also lose!!! when this two things be part of the problem!!

also how easy is it to take the panel out and to try and sit it back correctly is it something I can do I am not very car practical but very capable of making and mending things have rewired by home if that helps!!

Oct 2nd, 2009, 11:49	#1
src New Member Last Online: May 28th, 2021 13:01 Join Date: Oct 2009 Location: london	speedo I have just brought another volvo, this time a v70 estate 1999, and the speedo is not working. When starting the needle goes right round to the right - the radio comes on loud - and the miles traveled above the total miles starts to count up and then it stops the needle goes right back to the left and than the radio goes down in volume and from then on the needle does not move! can anyone help or point me in the right direction.

Oct 2nd, 2009, 15:56	#2
FCPGroton Trader Last Online: Nov 29th, 2015 20:12 Join Date: Jun 2009 Location: Old Saybrook, CT	WOW, that is some electrical issue you have there. I would just start going through and checking all the wiring for shorts and the like. __________________ FCP Euro Andrew Owendoff Communications Facilitator +1.877.634.0063 Get 10% off your order, use coupon code VOLVOFORUMUK : FCP Euro Official Car Parts Website <- Click

Oct 2nd, 2009, 22:26	#4
pacman67 VOC Member Last Online: Dec 6th, 2023 14:09 Join Date: Feb 2009 Location: Richmond N Yorks	Hmmm, that sounds more like a broken track on the pcb of the dash. Try thinking whats common to the radio and the speedo. Is there remote volume on the 99 model? It could be a bad earth around the dash somewhere, as said before look at connectors to the dash clocks and the stereo. Has someone tried to fit a different stereo in it in the past and butchered the wiring? Does the fault clear if you unplug the stereo? ps modern dashboards have self test modes, some fords if you hold the trip button in and turn the key the dials will spin up and then reset, so could be a dash fault. Good luck. __________________ Regards, pacman67 previously held: V40 TD & S40 2ltr P1,V40 P2 sport lux, V70 XC P1, XC70 P2, V70 D5 P2 and P3, V40 T4,V70R, C30 R Design. currently held: V70 P3 D5 SE LUX, XC90 MK2 Inscription Pro.

Oct 2nd, 2009, 23:11	#6
pacman67 VOC Member Last Online: Dec 6th, 2023 14:09 Join Date: Feb 2009 Location: Richmond N Yorks	Sorry to clarify, does it have remote volume ie on the steering wheel or on the stalks, the auto volume may me on the stereo itself and just alters te volume dependant on cabin noise due to extra speed, cant remember exactly how it senses, ages since i worked on them, i was looking for something common to the stereo and the dash, as mines a 98, wasnt sure if the stereo controls were the same. __________________ Regards, pacman67 previously held: V40 TD & S40 2ltr P1,V40 P2 sport lux, V70 XC P1, XC70 P2, V70 D5 P2 and P3, V40 T4,V70R, C30 R Design. currently held: V70 P3 D5 SE LUX, XC90 MK2 Inscription Pro.

Oct 3rd, 2009, 10:49	#7
acshortt5 Volvo Nutcase Last Online: Jul 14th, 2023 12:57 Join Date: May 2007 Location: N/A View Photos By: acshortt5	The speedo is powered by the abs system - might be worth checking that out as well, could be dry joints in the ABS ECU. __________________ Andrew 1998 S70 T5 CD AUTO Previously a 1990 240 GLT-R

Oct 2nd, 2009, 19:02	#3
alv70d1999 I've Been Banned Last Online: Sep 28th, 2010 12:05 Join Date: Apr 2009 Location: button moon	could be a voltage spike..... get the alternator checked out

Oct 2nd, 2009, 22:31	#5
FaKaWi Master Member Last Online: May 11th, 2017 15:36 Join Date: Jan 2009 Location: Where the.....	Yes, the stereo volume is connected to vehicle speed on these cars. Faster you go, louder it gets, hence why your volume goes up then down with speedo needle.

Oct 9th, 2009, 08:47	#8
src New Member Last Online: May 28th, 2021 13:01 Join Date: Oct 2009 Location: london	speedo Many thanks to everyone who sent me info I will try these out I have also found that when you push the speedo panel it moves back and foth as if someone had taken it out and not put it back right and teh top cover over the streeing column is also lose!!! when this two things be part of the problem!! also how easy is it to take the panel out and to try and sit it back correctly is it something I can do I am not very car practical but very capable of making and mending things have rewired by home if that helps!! Last edited by src; Oct 9th, 2009 at 08:50.

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