W221 TRUNK CLOSE BUTTON SWITCH HELP
12-08-2019, 10:02 PM
#1
Junior Member
Thread Starter
W221 TRUNK CLOSE BUTTON SWITCH HELP
2008 S550,trunk opens from door panel, from remote control, from trunk button but doesn't goes up automatically, needs to be open by hand and same way to close.
The open and close red button doesn't illuminate.
It was working fine before until the day i left the trunk opened for about an 40minutes, then the close button didn't illuminate and i pressed, it didn't close the trunk.
Since then, I have been slamming and pulling it manually. I tested the voltage going to the switch, i got 11+ voltage. So I replaced the Trunk lock close button switch, but still didn't illuminate.
Does any one know which fuse controls the close button switch? or is there anything else since i got 11volt from one of the switch wires?
The open and close red button doesn't illuminate.
It was working fine before until the day i left the trunk opened for about an 40minutes, then the close button didn't illuminate and i pressed, it didn't close the trunk.
Since then, I have been slamming and pulling it manually. I tested the voltage going to the switch, i got 11+ voltage. So I replaced the Trunk lock close button switch, but still didn't illuminate.
Does any one know which fuse controls the close button switch? or is there anything else since i got 11volt from one of the switch wires?
12-09-2019, 09:29 AM
#2
Out Of Control!!
Join Date: Jul 2003
Location: North Scottsdale, AZ
Posts: 15,903
Received 4,446 Likes
on
3,154 Posts
'71 Pinto
Pull 147 @ rear SAM for 15 minutes or so with trunk closed in an attempt to reset RTC CU.
Last edited by konigstiger; 12-09-2019 at 01:22 PM.
The following users liked this post:
GPF (12-09-2019)
12-09-2019, 10:10 PM
#3
Junior Member
Thread Starter
12-10-2019, 07:49 AM
#4
Out Of Control!!
Join Date: Jul 2003
Location: North Scottsdale, AZ
Posts: 15,903
Received 4,446 Likes
on
3,154 Posts
'71 Pinto
Does your data card show code 881 if so, 147 (control unit) is applicable.
12-12-2019, 06:59 PM
#5
Junior Member
Thread Starter
12-13-2019, 08:29 AM
#6
Out Of Control!!
Join Date: Jul 2003
Location: North Scottsdale, AZ
Posts: 15,903
Received 4,446 Likes
on
3,154 Posts
'71 Pinto
VIN?
12-13-2019, 04:15 PM
#7
Junior Member
Thread Starter
Trending Topics
12-13-2019, 04:34 PM
#8
Out Of Control!!
Join Date: Jul 2003
Location: North Scottsdale, AZ
Posts: 15,903
Received 4,446 Likes
on
3,154 Posts
'71 Pinto
Vehicle is equipped with 881 remote boot lid closing so pull 147 @ rear SAM for 15 minutes or so with trunk closed in an attempt to reset control unit. No guarantee nevertheless, worth a try.
12-13-2019, 07:25 PM
#9
Junior Member
Thread Starter
12-14-2019, 09:41 AM
#10
Out Of Control!!
Join Date: Jul 2003
Location: North Scottsdale, AZ
Posts: 15,903
Received 4,446 Likes
on
3,154 Posts
'71 Pinto
Odd, check your PM.
The following users liked this post:
dlafever (01-10-2020)
02-07-2020, 09:44 AM
#12
Junior Member
Thread Starter
So now with the new module, the trunk pulls up, but doesn't go down with the button or remote. I have to pull it down with my hand.
But it pulls up when open with remote or button
02-09-2020, 05:43 PM
#13
MBWorld Fanatic!
Did you have the dealer install it or do it yourself? It will need to be calibrated using SDS to work properly.
02-10-2020, 06:28 PM
#14
Junior Member
Thread Starter
