V50 Electrics : - Where is ECM on 2010 V50?

ozfiddler · Mar 19th, 2022, 05:07

I have an engine warning light on, and the air-con has stopped blowing cold air. However, the car is running perfectly normally. The error codes are:

ECM-1300 Mass air flow sensor signal too low
ECM-4000 Canister purge valve signal too low
ECM-6000 A/C relay signal too low
ECM-6400 Inlet camshaft reset valve signal missing
ECM-130B Mass air flow sensor signal too low

So, seems to me to be some sort of electrical connection problem. I have removed the CEM and cleaned all the connections but that didn't help. So I guess the next step is to check the connections on the Engine Control Module (ECM) except I can't find it!

Anyone know where it is on this car? Thanks.

MDS40 · Mar 19th, 2022, 09:08

As you have the 2.4i it should be at the front of the engine bay next to the air filter.

ozfiddler · Mar 19th, 2022, 22:17

Ah, nice one. Thanks for that. Found it! Now to check the contacts.

I was hoping it wasn't one of those models where it was tucked into the wheel arch.

ozfiddler · Mar 20th, 2022, 00:07

Well that didn't help either so I am stumped. Maybe the ECM has died?

I can clear the faults but as soon as I start the car the warning light comes on within about 15 seconds. The weird thing is the faults shows at <30% which should mean it is acceptable?

ozfiddler · May 4th, 2022, 04:26

If anyone else has a similar problem the answer was very simple. A blown fuse!

This was actually the first thing that occurred to me, and I checked all the fuses in the usual places. It turns out there are some engine management fuses near the A/C relay (I think he said it was under the wheel arch). One of these had blown causing all the error codes.

Mar 19th, 2022, 05:07	#1
ozfiddler Junior Member Last Online: May 23rd, 2023 22:21 Join Date: Oct 2016 Location: Blue Mts, Aust	Where is ECM on 2010 V50? I have an engine warning light on, and the air-con has stopped blowing cold air. However, the car is running perfectly normally. The error codes are: ECM-1300 Mass air flow sensor signal too low ECM-4000 Canister purge valve signal too low ECM-6000 A/C relay signal too low ECM-6400 Inlet camshaft reset valve signal missing ECM-130B Mass air flow sensor signal too low So, seems to me to be some sort of electrical connection problem. I have removed the CEM and cleaned all the connections but that didn't help. So I guess the next step is to check the connections on the Engine Control Module (ECM) except I can't find it! Anyone know where it is on this car? Thanks. __________________ 1999 V70 + 2010 V50 2.4i Last edited by ozfiddler; Mar 19th, 2022 at 05:26.

Mar 19th, 2022, 09:08	#2
MDS40 Senior Member Last Online: Apr 29th, 2024 08:31 Join Date: Sep 2017 Location: Berkshire	As you have the 2.4i it should be at the front of the engine bay next to the air filter. __________________ 2006 S40 2.4 SE Auto. Ruby Red. 83K Miles Some previous cars include: Jaguar x type: Mazda 6 : Mazda 626: Ford Sierra 2.0: Toyota Celica ST 1600 : Hillman Avenger: Triumph Spitfire: Oh and a Volvo 340 GL 1984 company car from new.

Mar 19th, 2022, 22:17	#3
ozfiddler Junior Member Last Online: May 23rd, 2023 22:21 Join Date: Oct 2016 Location: Blue Mts, Aust	Ah, nice one. Thanks for that. Found it! Now to check the contacts. I was hoping it wasn't one of those models where it was tucked into the wheel arch. __________________ 1999 V70 + 2010 V50 2.4i

Mar 20th, 2022, 00:07	#4
ozfiddler Junior Member Last Online: May 23rd, 2023 22:21 Join Date: Oct 2016 Location: Blue Mts, Aust	Well that didn't help either so I am stumped. Maybe the ECM has died? I can clear the faults but as soon as I start the car the warning light comes on within about 15 seconds. The weird thing is the faults shows at <30% which should mean it is acceptable? __________________ 1999 V70 + 2010 V50 2.4i

May 4th, 2022, 04:26	#5
ozfiddler Junior Member Last Online: May 23rd, 2023 22:21 Join Date: Oct 2016 Location: Blue Mts, Aust	If anyone else has a similar problem the answer was very simple. A blown fuse! This was actually the first thing that occurred to me, and I checked all the fuses in the usual places. It turns out there are some engine management fuses near the A/C relay (I think he said it was under the wheel arch). One of these had blown causing all the error codes. __________________ 1999 V70 + 2010 V50 2.4i

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