V50 Electrics : - alarm code 'Cem-6C30'

Alker · Jan 26th, 2020, 20:06

So in an attempt to sort my remote central locking and alarm issue . I checked the SCM batteries , dismantled box , charged up batery , refitted and tested a few times over the last few weeek... It holds charge at over 7.2 v , and pushes out at the 3 pins circa 4v , and 2.v ( i seem to remember, but might be wrong .. But neverless , battery voltage above 7.4V ... Vut when plugged into car , No joy ,, but have a code Cem - 6C30..

Cant clear with Vida , and cant find a decent explanation of the code other than internal fault.... Maybe the battery is suppose. But to spend £25 on a new battery unnecessarily is against my principals..

Any experience folks ?

MJS3 · Jan 27th, 2020, 17:13

Does this help?
Damaged fuse.
Internal fault in the siren control module (SCM).
Battery voltage too low.
Too low voltage in the internal battery in the siren (SCM).

Taken from
https://www.dtcdecode.com/Volvo/CEM-6C30

Does VIDA give you a better description/fault finding process to work through?

Alker · Jan 30th, 2020, 20:14

Thanks ... When weather improves ( maybe weekend ) ,I'll look tondo some more investigation... I'll report back

Jan 26th, 2020, 20:06	#1
Alker New Member Last Online: May 6th, 2020 10:25 Join Date: Nov 2019 Location: NOTTINGHAM	alarm code 'Cem-6C30' So in an attempt to sort my remote central locking and alarm issue . I checked the SCM batteries , dismantled box , charged up batery , refitted and tested a few times over the last few weeek... It holds charge at over 7.2 v , and pushes out at the 3 pins circa 4v , and 2.v ( i seem to remember, but might be wrong .. But neverless , battery voltage above 7.4V ... Vut when plugged into car , No joy ,, but have a code Cem - 6C30.. Cant clear with Vida , and cant find a decent explanation of the code other than internal fault.... Maybe the battery is suppose. But to spend £25 on a new battery unnecessarily is against my principals.. Any experience folks ?

Jan 27th, 2020, 17:13	#2
MJS3 New Member Last Online: Mar 6th, 2024 15:25 Join Date: Oct 2019 Location: Swindon	Does this help? Damaged fuse. Internal fault in the siren control module (SCM). Battery voltage too low. Too low voltage in the internal battery in the siren (SCM). Taken from https://www.dtcdecode.com/Volvo/CEM-6C30 Does VIDA give you a better description/fault finding process to work through?

Jan 30th, 2020, 20:14	#3
Alker New Member Last Online: May 6th, 2020 10:25 Join Date: Nov 2019 Location: NOTTINGHAM	Thanks ... When weather improves ( maybe weekend ) ,I'll look tondo some more investigation... I'll report back

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