Volvo Community Forum. The Forums of the Volvo Owners Club

Forum Rules Volvo Owners Club About VOC Volvo Gallery Links Volvo History Volvo Press
Go Back   Volvo Owners Club Forum > "Technical Topics" > XC90 '02'15 General
Register Members CarsBlogs Help Calendar Mark Forums Read

Notices

XC90 '02'15 General Forum for the Volvo XC90 Phase 1 Series

Information
  • VOC Members: There is no login facility using your VOC membership number or the details from page 3 of the club magazine. You need to register in the normal way
  • AOL Customers: Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session. This is a known issue with AOL.
  • AOL, Yahoo and Plus.net users. Forum owners such as us are finding that AOL, Yahoo and Plus.net are blocking a lot of email generated from forums. This may mean your registration activation and other emails will not get to you, or they may appear in your spam mailbox

Thread Informations

Engine service warning message

Views : 305

Replies : 8

Users Viewing This Thread :  

Reply
 
Thread Tools Display Modes
Old Jul 21st, 2019, 21:27   #1
Peterspencer
Junior Member
 

Last Online: Sep 14th, 2019 21:35
Join Date: Dec 2018
Location: Derby
Default Engine service warning message

Its appeared a few times now over a couple of months, i reset the codes do the start procedure and no new codes appear immediately so guess its something which appears after time or is intermittent.

The fault codes are all high or low signal

High signal no2 injector
Low signal Maf
Low signal,swirl thingy.

I guess either the ecu has an issue or was wondering if there could be a dodgy connector somewhere, is there a common fault to cause this?
Peterspencer is offline   Reply With Quote
Old Jul 22nd, 2019, 13:02   #2
gmonag
Premier Member
 

Last Online: Today 11:59
Join Date: Jun 2010
Location: Bury St Edmunds
Default

I doubt its the ECU. I would trace the wiring and check power/ground/signal voltages.

VIDA will also give you suggestions as to posssible causes if you use it to read the codes. The generic code readers can be misleading.
__________________
Greg
gmonag is offline   Reply With Quote
The Following User Says Thank You to gmonag For This Useful Post:
Old Jul 22nd, 2019, 19:07   #3
Peterspencer
Junior Member
 

Last Online: Sep 14th, 2019 21:35
Join Date: Dec 2018
Location: Derby
Default

Quote:
Originally Posted by gmonag View Post
I doubt its the ECU. I would trace the wiring and check power/ground/signal voltages.

VIDA will also give you suggestions as to posssible causes if you use it to read the codes. The generic code readers can be misleading.
Vida only points to the faulty ECU but as you say its quite odd as so many signals are an issue.
I will check earth connections ect at the ecu once i find it, to be fair not looked yet
Peterspencer is offline   Reply With Quote
Old Jul 22nd, 2019, 19:41   #4
SwissXC90
Premier Member
 

Last Online: Today 10:47
Join Date: Jan 2016
Location: Cross Country
Default

Never consider VIDA to be 100% correct

Using VIDA requires a working and functional Brain in a Human Being to get the right results.
__________________
XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65.
SwissXC90 is offline   Reply With Quote
Old Jul 22nd, 2019, 22:53   #5
Peterspencer
Junior Member
 

Last Online: Sep 14th, 2019 21:35
Join Date: Dec 2018
Location: Derby
Default

Quote:
Originally Posted by SwissXC90 View Post
Never consider VIDA to be 100% correct

Using VIDA requires a working and functional Brain in a Human Being to get the right results.
Crikey


I only asked for a bit of assistance, this is not assistance in any way shape or form and if this is the forum I guess i am best finding a new one.
Peterspencer is offline   Reply With Quote
Old Jul 22nd, 2019, 23:22   #6
gmonag
Premier Member
 

Last Online: Today 11:59
Join Date: Jun 2010
Location: Bury St Edmunds
Default

You have had 2 prompt responses from long-term, experienced forum members. The advice you have been given is the best you will get, given that we have not got all the info required.

I don't know what else you can expect.
__________________
Greg
gmonag is offline   Reply With Quote
The Following 2 Users Say Thank You to gmonag For This Useful Post:
Old Jul 23rd, 2019, 08:44   #7
Peterspencer
Junior Member
 

Last Online: Sep 14th, 2019 21:35
Join Date: Dec 2018
Location: Derby
Default

Quote:
Originally Posted by gmonag View Post
You have had 2 prompt responses from long-term, experienced forum members. The advice you have been given is the best you will get, given that we have not got all the info required.

I don't know what else you can expect.
Its not your message which i read as being rude.
I was fishing to see if there was a known electrical fault which would cause the error, my other motors are Range Rover Classics which experience shows have certain faults across the car range.

The message may not of been written to be rude but reads that way to me, one should always be careful.
Peterspencer is offline   Reply With Quote
Old Jul 23rd, 2019, 08:58   #8
Tannaton
Premier Member
 
Tannaton's Avatar
 

Last Online: Today 09:20
Join Date: Aug 2014
Location: Beverley, East Yorks
Default

Whilst it was a bit direct - Swiss's advice was factual and relevant.

VIDA is by the far best diagnostic system that you can use on your Volvo but it will only tell you symptoms, not causes. Like a doctor know your temperature is high and blood pressure low.... a brain is needed (with experience and intelligence) to diagnose.

By coming on to this forum you get access to more Volvo experience that anywhere else. But as you say you have the option of going elsewhere...

Anyway to your post - I agree with what has been said so far - ECU's very rarely give trouble and generally either work or fail hard.

Bad earth's are not likely to be the issue either - Volvo's wiring standards are much higher now and every resistance based sensor has it's own dedicated earth and reference resistor built in so it is effectively one half of a wheatstone bridge. Many of the sensors now are digital also (but probably not on the Mk 1 90)
__________________
2015 XC60 D5 SE LUX, 2012 V40 D3 SE, 2003 XC90 D5 SE, 2009 Ford Ranger SC, 1977 Triumph Spitfire 1500
Tannaton is offline   Reply With Quote
The Following User Says Thank You to Tannaton For This Useful Post:
Old Jul 23rd, 2019, 10:10   #9
Peterspencer
Junior Member
 

Last Online: Sep 14th, 2019 21:35
Join Date: Dec 2018
Location: Derby
Default

Quote:
Originally Posted by Tannaton View Post
Whilst it was a bit direct - Swiss's advice was factual and relevant.

VIDA is by the far best diagnostic system that you can use on your Volvo but it will only tell you symptoms, not causes. Like a doctor know your temperature is high and blood pressure low.... a brain is needed (with experience and intelligence) to diagnose.

By coming on to this forum you get access to more Volvo experience that anywhere else. But as you say you have the option of going elsewhere...

Anyway to your post - I agree with what has been said so far - ECU's very rarely give trouble and generally either work or fail hard.

Bad earth's are not likely to be the issue either - Volvo's wiring standards are much higher now and every resistance based sensor has it's own dedicated earth and reference resistor built in so it is effectively one half of a wheatstone bridge. Many of the sensors now are digital also (but probably not on the Mk 1 90)

Thanks for that.

Guess its multimeter time now.

This in my first modern volvo i have worked on so its going to be interesting. VIDA is a great tool and would of helped me in my past life mending the F88 we had on the fleet...
Interesting to hear of the wire standards, this could be simply a lose plug or dodgy connector i guess, we do get a poor radio signal when its damp in the rear of the car which i also guess is a corrosion on a connector or component.

I will report back what i find, the message is back on the dashboard after only 2 days this time.

Its a 2010 D5 BTW
Peterspencer is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 19:40.


Powered by vBulletin
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.