V40 cc error codes

keithC70 · Oct 27th, 2022, 10:07

My wife's 2015 v40 cross country has lit up with brake warning lights.

It started with a tyre pressure warning - they're all at the correct pressures!

Then she had Low Speed Collision Mitigation by Braking Disabled.

Then the DIM lit up with ABS, and other warning lights.

The first DTC I looked at TCM -C003A00 suggested faulty rear right speed sensor, but in live readings it shows the same output as the other wheels!

It's now showing 13 DTCs all related to electrical system failures, the first being

CEM-U030141

Help!

Any ideas anyone?

Thanks,

Keith

ele288 · Oct 29th, 2022, 10:16

How old is your battery? On my v40 had all kind of dtc. The laser detector is connected to the braking system, in mine the rear left failed and had brake service required. Funny enough it's ford part and the volvo dealer was the cheapest £27 for the sensor and Ford wanted £42

keithC70 · Oct 30th, 2022, 07:14

Thanks for that.

I've carried out a further test up to motorway speeds and there is no output from the rear right sensor, so I will get that changed first.

Hopefully the dtc list will not reappear.

Thanks.

Oct 27th, 2022, 10:07	#1
keithC70 Senior Member Last Online: Today 17:53 Join Date: Apr 2007 Location: Andover	V40 cc error codes My wife's 2015 v40 cross country has lit up with brake warning lights. It started with a tyre pressure warning - they're all at the correct pressures! Then she had Low Speed Collision Mitigation by Braking Disabled. Then the DIM lit up with ABS, and other warning lights. The first DTC I looked at TCM -C003A00 suggested faulty rear right speed sensor, but in live readings it shows the same output as the other wheels! It's now showing 13 DTCs all related to electrical system failures, the first being CEM-U030141 Help! Any ideas anyone? Thanks, Keith __________________ 2013 S60 D5 Lux Nav Auto 2016 V70 SE Lux D4 Auto 33k

Oct 30th, 2022, 07:14	#3
keithC70 Senior Member Last Online: Today 17:53 Join Date: Apr 2007 Location: Andover	Thanks for that. I've carried out a further test up to motorway speeds and there is no output from the rear right sensor, so I will get that changed first. Hopefully the dtc list will not reappear. Thanks. __________________ 2013 S60 D5 Lux Nav Auto 2016 V70 SE Lux D4 Auto 33k

Oct 29th, 2022, 10:16	#2
ele288 Member Last Online: Today 21:36 Join Date: Jun 2019 Location: Havant	How old is your battery? On my v40 had all kind of dtc. The laser detector is connected to the braking system, in mine the rear left failed and had brake service required. Funny enough it's ford part and the volvo dealer was the cheapest £27 for the sensor and Ford wanted £42

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