AWD Transmission: - Criuse not working in morning - Page 2

GJB · Dec 6th, 2013, 20:19

Quote:

Originally Posted by bobdabuilda

Did you check on VIDA whether the brake light switch was at fault though? My money is still on the brake pedal position sensor in the servo.... but I'm a crap gambler!!!!
Keep us updated please

Doing cheapest first. Have found if I switch on cruise before moving in the morning it switches on BUT when I touch the brake pedal it goes off so am taking the gamble as it is definitely a DIY job. No have not done a VIDA check yet.

volvoid · Dec 6th, 2013, 22:03

Its a special safety feature by volvo for the local authority fleet cars, think pedantic elf n safety, it doesnt allow driver to relax until 45 minutes into journey, by which time
a - drivers coffee has started to take effect
b - driver will be at destination anyway
The assumption is by evening the driver will be raring to go home after a day of drivel in the office, and so be sufficiently awake to use cruise

Borgi · Dec 7th, 2013, 14:55

I have had a simillar fault. Sometimes it would switch on then go off. Turn engine off & restart then it would come on.

This became the norm for a while untill cruise would not engage & I had a Brake Assist Srevice Required message come up on the dash. I connected VIDA & this told me that there was a weak signal from the brake pedal position sensor.

I pulled off the connection & sprayed WD40 down the block connector. Hey Presto no more playing silly buggers.

I looked at replacing the switch but then I thought about it a little. The switch works with bellows for it to activate the signal. It either works or not. I figured if the fault was intermittent then it had to be a poor connection.

Just me thinking out loud & not wanting to spend £100+ only to find out it wasn't that.

GJB · Dec 10th, 2013, 12:52

Well new switch arrived but have not used it as the problem seems to have gone away and being of the school that says "If it ain't broke don't fix it " I have decided to leave it alone if it comes back now have a brake light switch to try with.

GJB · Dec 11th, 2013, 10:24

Brake light Switch number VO8622064 this is for 2010 r design but see no reason for it not being same on other models and years

GJB · Dec 29th, 2013, 14:52

Quote:

Originally Posted by GJB

Brake light Switch number VO8622064 this is for 2010 r design but see no reason for it not being same on other models and years

Well problem has returned new switch will be fitted tomorrow.

GJB · Dec 31st, 2013, 14:26

Have replaced the brake light switch and problem has gone away thanks for every ones help.

Dec 6th, 2013, 22:03	#12
volvoid Monster Raving Loony Last Online: Nov 12th, 2018 20:03 Join Date: Oct 2013 Location: hitchin	Its a special safety feature by volvo for the local authority fleet cars, think pedantic elf n safety, it doesnt allow driver to relax until 45 minutes into journey, by which time a - drivers coffee has started to take effect b - driver will be at destination anyway The assumption is by evening the driver will be raring to go home after a day of drivel in the office, and so be sufficiently awake to use cruise

Dec 7th, 2013, 14:55	#13
Borgi Junior Member Last Online: May 30th, 2024 21:18 Join Date: Nov 2008 Location: Preston	I have had a simillar fault. Sometimes it would switch on then go off. Turn engine off & restart then it would come on. This became the norm for a while untill cruise would not engage & I had a Brake Assist Srevice Required message come up on the dash. I connected VIDA & this told me that there was a weak signal from the brake pedal position sensor. I pulled off the connection & sprayed WD40 down the block connector. Hey Presto no more playing silly buggers. I looked at replacing the switch but then I thought about it a little. The switch works with bellows for it to activate the signal. It either works or not. I figured if the fault was intermittent then it had to be a poor connection. Just me thinking out loud & not wanting to spend £100+ only to find out it wasn't that.

Dec 10th, 2013, 12:52	#14
GJB Premier Member Last Online: May 14th, 2024 09:06 Join Date: Dec 2004 Location: Cromer Norfolk	Well new switch arrived but have not used it as the problem seems to have gone away and being of the school that says "If it ain't broke don't fix it " I have decided to leave it alone if it comes back now have a brake light switch to try with.

Dec 11th, 2013, 10:24	#15
GJB Premier Member Last Online: May 14th, 2024 09:06 Join Date: Dec 2004 Location: Cromer Norfolk	Brake light Switch number VO8622064 this is for 2010 r design but see no reason for it not being same on other models and years

Dec 31st, 2013, 14:26	#17
GJB Premier Member Last Online: May 14th, 2024 09:06 Join Date: Dec 2004 Location: Cromer Norfolk	Have replaced the brake light switch and problem has gone away thanks for every ones help.

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