147 0.9a battery drain on Fuse22 - Alfa Romeo Forum
You are currently unregistered, register for more features.    
 
Thread Tools
(Post Link) post #1 of 11 Old 03-02-11 Thread Starter
Status: -
Newbie
 
Join Date: Nov 2010
Location: United Kingdom
County: Greater Manchester
Posts: 6

Member car:

147

147 0.9a battery drain on Fuse22

Hi, newbie here with a problem so please be gentle

I have 2003 Alfa 147 1.6 Lusso 3 door which I love but the relationship is being tested by an intermittent battery drain.

I have had the car to an auto electrician who tells me that the draw on the one occasion we had managed to replicate the problem in the workshop (after waiting 20mins or so for the system to settle) is 0.9a which is obviously way too high. He has identified that pulling Fuse 22 solves the problem. HOWEVER Fuse 22 relates to a multifunction control unit which feeds allsorts and is beyond his capabilities.

Does anyone out there have any similar experiences of this fault or know what I can do next.

If there are any Alfa Specialists on here in the North West area and are willing to take this job on then please contact me.
on2wheelsand4 is offline  
Sponsored Links
Advertisement
 
Status: BEEN AWAY SITE GOT WORSE .....
AO Gold Member
 
davealfa11's Avatar
 
Join Date: Mar 2007
Location: United Kingdom
County: Merseyside
Posts: 9,904
Images: 4

Member car:

156 1.9 mjet 16v

not very good auto spark comes to mind ,contact gus at alfatune he may just sort problem easier
davealfa11 is offline  
CJO
Status: Enjoying a nice mug of tea
AO Silver Member
 
Join Date: Oct 2008
Location: United Kingdom
County: Bedfordshire
Posts: 1,752
Does this fuse cover the Rev Counter ?

If so do a search on Rev Counter Issues or Bulb Out Circuit issues
CJO is offline  
 
(Post Link) post #4 of 11 Old 03-02-11 Thread Starter
Status: -
Newbie
 
Join Date: Nov 2010
Location: United Kingdom
County: Greater Manchester
Posts: 6

Member car:

147

Not sure whether this fuse covers the rev counter but no 'bulb out' lights on the dash. Looking at the wiring diagram on Autodata it has CAN low, CAN High, VAN A VAN B, a feed to the ECU, and a feed to the air con control unit - which feeds air flap motors, recirc motors, temp sensors etc.
on2wheelsand4 is offline  
CJO
Status: Enjoying a nice mug of tea
AO Silver Member
 
Join Date: Oct 2008
Location: United Kingdom
County: Bedfordshire
Posts: 1,752
sorry just spotted it's a 147 - Rev Counter Issues are for 156's only.

The bulb out circuit on a 147 runs through the body computer so this is a red herring
CJO is offline  
(Post Link) post #6 of 11 Old 04-02-11 Thread Starter
Status: -
Newbie
 
Join Date: Nov 2010
Location: United Kingdom
County: Greater Manchester
Posts: 6

Member car:

147

Thanks for contributing anyway CJO
on2wheelsand4 is offline  
CJO
Status: Enjoying a nice mug of tea
AO Silver Member
 
Join Date: Oct 2008
Location: United Kingdom
County: Bedfordshire
Posts: 1,752
It could still be the bulb out circuit, it's just that it is a lot more expensive to fix on a 147.

Is one (normally the OSR) of the rear lights on continuosly ? It may be very dim and only visable in the dark - you will need to replace the fuse before you check.
CJO is offline  
(Post Link) post #8 of 11 Old 04-02-11 Thread Starter
Status: -
Newbie
 
Join Date: Nov 2010
Location: United Kingdom
County: Greater Manchester
Posts: 6

Member car:

147

I have checked this but will double check tonight... the drain is only intermittent though.
on2wheelsand4 is offline  
(Post Link) post #9 of 11 Old 11-02-11 Thread Starter
Status: -
Newbie
 
Join Date: Nov 2010
Location: United Kingdom
County: Greater Manchester
Posts: 6

Member car:

147

Still not having any joy with this...... there seems no pattern to the drain..... alarm on or locked with the key.... even think it has something to do with the fuel gauge........seems to be flat the day after i've put fuel in it.... or maybe I'm going mad... any help would be appreciated.
on2wheelsand4 is offline  
Status: permanently confused
AO Silver Member
 
Sunbar's Avatar
 
Join Date: Mar 2003
County: -
Posts: 2,425

Member car:

MINI Cooper

Quote:
Originally Posted by mlm4u View Post
..... the draw on the one occasion we had managed to replicate the problem in the workshop (after waiting 20mins or so for the system to settle) is 0.9a which is obviously way too high. He has identified that pulling Fuse 22 solves the problem. HOWEVER Fuse 22 relates to a multifunction control unit which feeds allsorts and is beyond his capabilities.
Did the auto electrician actually show you the fuse in question? According to the 147 handbook I have access to (Alfa's download 222068616) the fuse F22 is in the fuse bank next to the battery (4th from the right bottom row) and controls only the fuel injectors (both petrol and diesel versons)?

Can you clarify which fuse it is that he says controls the 'multifunction control unit' as its not listed separately in the handbook. Can you check the fuse number? Is it by the battery or under the dashboard, where is it located actually, by row and position, and the value in amps?

The fuel gauge is unlikely IMO but of course these problems are never straight forward so anything is possible.

Are you having the battery re-charged between it being discharged? If so how long (hours/days) does it take to go flat?

'A business absolutely devoted to service will have only one worry about profits. They will be embarrassingly large.' - Henry Ford.
Sunbar is offline  
Status: -
Newbie
 
Join Date: Aug 2016
County: -
Posts: 1
Hello mate, I know its been a few years but did you ever get the problem fixed in the end? I'm having the same problem and have reached a dead end

Sorry if this is bringing back bad memories!
Sci147 is offline  
Reply

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Alfa 147, 156 & GT

Tags
09a , 147 , battery , drain , fuse22

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome