Fuel pump power supply fault CEM-B10C014

Jdaugh · Mar 14th, 2024, 18:42

Hi everyone,
I'm really hoping someone can help me - I have a dead V70 (2010, D5) and I need to go on holiday in a week.
It failed to start yesterday and it is showing the code CEM-B10C014 'Fuel pump power supply. General Electrical Failures. Circuit short to ground or open'
The garage who have the car can't find the relevant locations of the fuse/relay and would also like to know how to access the fuel pump. I have had this problem before - the fuse diagrams I find online don't match the ones in my car.
I tried other garages and even the main dealer but they can't fit me in for weeks. Any help gratefully received
Thanks in advance.

GrahamBrown1 · Mar 14th, 2024, 19:00

You will find the fuse in the CEM fuse box up under the glovebox. To access the pump you will need to drop the fuel tank, tho for testing purposes you should be able to slacken it enough and not need to remove it from the car.

Code description indicates broken wire. Obviously check the fuse, blown fuse indicates short to ground or shorted pump internally. check for power and ground at the pump ect but they should know what they’re doing.

Jdaugh · Mar 14th, 2024, 19:31

Thanks, much appreciated. I guess its one of the 20A fuses?

GrahamBrown1 · Mar 14th, 2024, 19:34

Quote:

Originally Posted by Jdaugh

Thanks, much appreciated. I guess its one of the 20A fuses?

Yep, number 13 I think or somewhere around there from what I remember

Jdaugh · Apr 4th, 2024, 19:10

It turned out to be the CEM. Replaced and now working fine

Jdaugh · Apr 4th, 2024, 21:21

It needed a new CEM. Sorted now

Mar 14th, 2024, 18:42	#1
Jdaugh New Member Last Online: Apr 4th, 2024 21:23 Join Date: Feb 2017 Location: Swansea	Fuel pump power supply fault CEM-B10C014 Hi everyone, I'm really hoping someone can help me - I have a dead V70 (2010, D5) and I need to go on holiday in a week. It failed to start yesterday and it is showing the code CEM-B10C014 'Fuel pump power supply. General Electrical Failures. Circuit short to ground or open' The garage who have the car can't find the relevant locations of the fuse/relay and would also like to know how to access the fuel pump. I have had this problem before - the fuse diagrams I find online don't match the ones in my car. I tried other garages and even the main dealer but they can't fit me in for weeks. Any help gratefully received Thanks in advance.

Mar 14th, 2024, 19:00	#2
GrahamBrown1 VOC Member Last Online: Today 22:25 Join Date: Feb 2013 Location: North Yorkshire	You will find the fuse in the CEM fuse box up under the glovebox. To access the pump you will need to drop the fuel tank, tho for testing purposes you should be able to slacken it enough and not need to remove it from the car. Code description indicates broken wire. Obviously check the fuse, blown fuse indicates short to ground or shorted pump internally. check for power and ground at the pump ect but they should know what they’re doing. __________________ Previous -03 S40, 04 V70 D5, 04 V70 D5 Sport, 05 V50, 07 S60 D5, 09 V70 D5 R design, 12 XC60 DrivE, 15 V60 D3 Current- 05 XC90 D5 Exec, 12 XC70 D4 AWD Se Lux, 14 S80 D3 Se Lux

Mar 14th, 2024, 19:31	#3
Jdaugh New Member Last Online: Apr 4th, 2024 21:23 Join Date: Feb 2017 Location: Swansea	Thanks, much appreciated. I guess its one of the 20A fuses?

Apr 4th, 2024, 19:10	#5
Jdaugh New Member Last Online: Apr 4th, 2024 21:23 Join Date: Feb 2017 Location: Swansea	It turned out to be the CEM. Replaced and now working fine

Apr 4th, 2024, 21:21	#6
Jdaugh New Member Last Online: Apr 4th, 2024 21:23 Join Date: Feb 2017 Location: Swansea	It needed a new CEM. Sorted now

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