‘04 XC90 Brake Reset

spideyymaneee · Apr 23rd, 2024, 06:30

Hello, I’m looking to buy a XC90 2.5T however the seller is saying the “kill switch” is engaged and needs the electrical brake system reset, the vehicle turns over but won’t run.

I did some digging around in the forums and thought this might be something related to the turning back of the brake module to factory position when changing the pads & rotors, but it appears that’s only needed to compress the piston in the caliper & has no affect on the ability to drive after the job is complete.

I know this may be a shot in the wind, I have some mechanical knowledge but was hoping someone with more expertise in Volvo’s realm might be able to pinpoint the issue based on the description above and point me in the right direction of getting this car running. It’s in good condition otherwise and the seller is asking $1,000 so if it appears to be something relatively simple I would certainly appreciate the knowledge and help!

Tia,

Spidey

Tannaton · Apr 23rd, 2024, 07:40

There is no kill switch as such, the only thing I can think of is the CEM (central electronic module) is in crash mode, and hence no power to the fuel pump and engine disabled following a heavy impact during which the airbags would likely have blown. This likely means the car has had major repairs and never driven (or tested) since. That would be my guess based on what you have shared - needs plugging in to proper Volvo diagnostics.

Apr 23rd, 2024, 06:30	#1
spideyymaneee New Member Last Online: Apr 23rd, 2024 06:30 Join Date: Apr 2024 Location: Amarillo Texas	‘04 XC90 Brake Reset Hello, I’m looking to buy a XC90 2.5T however the seller is saying the “kill switch” is engaged and needs the electrical brake system reset, the vehicle turns over but won’t run. I did some digging around in the forums and thought this might be something related to the turning back of the brake module to factory position when changing the pads & rotors, but it appears that’s only needed to compress the piston in the caliper & has no affect on the ability to drive after the job is complete. I know this may be a shot in the wind, I have some mechanical knowledge but was hoping someone with more expertise in Volvo’s realm might be able to pinpoint the issue based on the description above and point me in the right direction of getting this car running. It’s in good condition otherwise and the seller is asking $1,000 so if it appears to be something relatively simple I would certainly appreciate the knowledge and help! Tia, Spidey

Apr 23rd, 2024, 07:40	#2
Tannaton Bungling Amateur Last Online: Today 22:10 Join Date: Aug 2014 Location: Beverley, East Yorks	There is no kill switch as such, the only thing I can think of is the CEM (central electronic module) is in crash mode, and hence no power to the fuel pump and engine disabled following a heavy impact during which the airbags would likely have blown. This likely means the car has had major repairs and never driven (or tested) since. That would be my guess based on what you have shared - needs plugging in to proper Volvo diagnostics. __________________ 2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135 Last edited by Tannaton; Apr 23rd, 2024 at 07:43.

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