S40 (New) Electrics : - Reversing sensors, intermittent fault? S40 SE Sport 2.0d - Page 2

Philatron · Jun 14th, 2012, 17:31

Unfortunately, after changing the battery, the rear sensor issue is still there

Elfed · Jun 16th, 2012, 13:33

I'm not sure if this is a coincidence, but I gave my sensors a thorough cleaning with all purpose cleaner and they haven't misbehaved since, strange!!!

Philatron · Jun 30th, 2012, 10:39

I'd just popped back to see if you'd updated this, somehow missed your last post!

So, what did you do coz I've wiped over mine a few times with no joy...

Elfed · Jun 30th, 2012, 10:47

They worked for a bit, then went back to their usual thing, it's so intermittent i really can't see a pattern.

Philatron · Jul 1st, 2012, 15:22

Have you tried taking the bumper off yet? Next free weekend I get I'll give it a go...

The rear sensors on mine are definitely not as sensitive as they should be, either, as I've now tested them out, when not screaming, by reversing up to a wall. They only start beeping when I'm really close.

Elfed · Jul 11th, 2012, 19:14

I've had my car serviced at my local Volvo dealership today, turns out the problem's in the module, which is giving out too high a current at times.

Changing the module's very easy, although I'm not sure if it needs programming to the car so not sure if I can do it myself.

Penteante · Aug 23rd, 2012, 19:02

I Have the same problem for about 1 year, but the VOLVO dealer never came to conclusion. At some point, they sugested replacing the CEM. But the price is so hi, I prefered to not replace it.

Since your solution seems to be a diferent one, can you please inform the part number of the module you have to replace?

Thanks in advance.

Elfed · Aug 23rd, 2012, 20:20

Hi, I don't know what the part number is as I haven't replaced mine yet, it's behind the filler cap in the boot compartment.

Penteante · Aug 27th, 2012, 16:19

Elfed,

There are 2 diferent modules related to the Rear Parking System.

These 2 modules are :
PAM - Parking Assitance Module
AEM - Acessories Electronic Module

Did they mention the name of the malfunctioning one?

Elfed · Aug 27th, 2012, 16:56

I'm pretty sure it was the Parking Assist Module.

Aug 23rd, 2012, 19:02	#17
Penteante I've Been Banned Last Online: Aug 27th, 2012 16:20 Join Date: Apr 2012 Location: Ponta Delgada	Module I Have the same problem for about 1 year, but the VOLVO dealer never came to conclusion. At some point, they sugested replacing the CEM. But the price is so hi, I prefered to not replace it. Since your solution seems to be a diferent one, can you please inform the part number of the module you have to replace? Thanks in advance.

Aug 27th, 2012, 16:19	#19
Penteante I've Been Banned Last Online: Aug 27th, 2012 16:20 Join Date: Apr 2012 Location: Ponta Delgada	PAM or AEM Elfed, There are 2 diferent modules related to the Rear Parking System. These 2 modules are : PAM - Parking Assitance Module AEM - Acessories Electronic Module Did they mention the name of the malfunctioning one?

Jun 14th, 2012, 17:31	#11
Philatron New Member Last Online: Sep 19th, 2012 16:15 Join Date: Jun 2012 Location: NW	Unfortunately, after changing the battery, the rear sensor issue is still there

Jun 16th, 2012, 13:33	#12
Elfed Member Last Online: Jan 23rd, 2013 18:29 Join Date: Feb 2011 Location: Bangor	I'm not sure if this is a coincidence, but I gave my sensors a thorough cleaning with all purpose cleaner and they haven't misbehaved since, strange!!!

Jun 30th, 2012, 10:39	#13
Philatron New Member Last Online: Sep 19th, 2012 16:15 Join Date: Jun 2012 Location: NW	I'd just popped back to see if you'd updated this, somehow missed your last post! So, what did you do coz I've wiped over mine a few times with no joy...

Jun 30th, 2012, 10:47	#14
Elfed Member Last Online: Jan 23rd, 2013 18:29 Join Date: Feb 2011 Location: Bangor	They worked for a bit, then went back to their usual thing, it's so intermittent i really can't see a pattern.

Jul 1st, 2012, 15:22	#15
Philatron New Member Last Online: Sep 19th, 2012 16:15 Join Date: Jun 2012 Location: NW	Have you tried taking the bumper off yet? Next free weekend I get I'll give it a go... The rear sensors on mine are definitely not as sensitive as they should be, either, as I've now tested them out, when not screaming, by reversing up to a wall. They only start beeping when I'm really close.

Jul 11th, 2012, 19:14	#16
Elfed Member Last Online: Jan 23rd, 2013 18:29 Join Date: Feb 2011 Location: Bangor	I've had my car serviced at my local Volvo dealership today, turns out the problem's in the module, which is giving out too high a current at times. Changing the module's very easy, although I'm not sure if it needs programming to the car so not sure if I can do it myself.

Aug 23rd, 2012, 20:20	#18
Elfed Member Last Online: Jan 23rd, 2013 18:29 Join Date: Feb 2011 Location: Bangor	Hi, I don't know what the part number is as I haven't replaced mine yet, it's behind the filler cap in the boot compartment.

Aug 27th, 2012, 16:56	#20
Elfed Member Last Online: Jan 23rd, 2013 18:29 Join Date: Feb 2011 Location: Bangor	I'm pretty sure it was the Parking Assist Module.

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