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" > AWD Discussion

Notices

AWD Discussion A forum dedicated to the AWD systems fitted to Volvo cars.

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

2014 XC70 DSTC / PAM errors

Views : 3940

Replies : 12

Users Viewing This Thread :  

Reply
 
Thread Tools Display Modes
Old Jan 14th, 2019, 23:46   #11
37 RUBY
Master Member
 

Last Online: Feb 15th, 2024 19:41
Join Date: Jun 2017
Location: Chesterfield
Default Problem solved- read above^^^

Steve

Excellent skills

I'm sure the solution will be of invaluable use to someone in the future.

Cheers

Dave
37 RUBY is offline   Reply With Quote
Old Jan 30th, 2023, 18:36   #12
V70AWDSweden
New Member
 

Last Online: Jun 20th, 2023 01:02
Join Date: Jan 2023
Location: Helsingborg
Default

Hi Steve,

I created this account merely to thank you. I have gone through so many forms in Swedish and English and noone found the culprit of this problem. Some people spent £1000s and problem still existed.

I have the same problem with my 2011 V70 and it was eating my brain as I’m now abroad and the car feels and drive very weird. No DSTC, parking sensor and the gear shifts hard. Also heaters in the seats given up. I read your comment and went right away to the closest dealership and bought that R1 relay, praying it’s my problem too. I haven’t worked much on cars electric systems before and I’m wondering whether it’s ok to change the relay myself without removing battery heads? I don’t have Vida atm, so what do you advise regarding clearing codes? Would it work again if I don’t clear the codes?

Thanks again for your follow up on your problem!

Best,
N


Quote:
Originally Posted by sellxc70 View Post
I've solved the problem today

Working back from checking for 12v power at the modules led me to the fuses under the glove box. All the fuses were ok (not blown) but having no 12v power to some fuses didn't immediately occur to me but that is what I found on the right hand side fuse bank; no power!?! I worked out that the fuses without power all led to the modules and systems that were showing in the vida fault diagnosis.

My next course of action was to check the power supply routes to the fuse box by looking at the wiring diagram. This is part of vida if you have the EWD but my version didn't have this so I searched on line and manged to locate a 436 page .pdf file with comprehensive wiring diagrams. By page 14 I found what I needed and could see that the bank of fuses was being fed 12v power from a relay 'R1'.

I removed and tested the relay and found a fault with the switch. A new relay from Volvo fitted and problem now solved. I've erased all the errors using vida and taken the car for a test drive and all is good. Parking sensors and heated seat back on along with DSTC and AWD.

I hope this conclusion helps anyone with similar issues.

Regards, Steve
V70AWDSweden is offline   Reply With Quote
Old Feb 1st, 2023, 15:02   #13
Simmy
Premier Member
 
Simmy's Avatar
 

Last Online: Today 20:18
Join Date: Mar 2017
Location: Manchester
Default

quick easy fixes are the most satisfying I'm sure this fix will also apply to other models as well. well done on tracking down this mystifying problem. keep u the good work.
Simmy is offline   Reply With Quote
Reply

Tags
relay


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 22:33.


Powered by vBulletin
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.