Driver door won't open
01-11-2015, 11:00 AM
#26
Passenger door relay
LV2TOUR I was looking to the schematic for the BCM on the passenger floor and cannot locate the relays, I can see the door lock and driver lock fuses but having trouble identifying the relays can anybody point me to the correct direction.
01-11-2015, 11:36 AM
#27
Race Director
Member Since: Apr 2007
Location: Toronto, Canada
Posts: 15,945
Received 1,500 Likes
on
817 Posts
C7 of the Year - Unmodified Finalist 2021
I've tried lubing without taking the actuator out of the door but didn't work - anybody think it will make a difference if I take it out and clean/lube?
01-11-2015, 12:15 PM
#28
Team Owner
Check the latch mechanism and see if it is getting power when you try to open the door. If power is there, then the latch mechanism is bad. Follow the power.
01-11-2015, 01:06 PM
#29
Le Mans Master
Since this is a resurrected 2 year old thread, you are going to get lots of people talking about lots of different issues. That is one of the reasons to start a new thread when you have a new issue. But...
The modiule mentioned would be either the Driver Door Module (DDM) or Front Passenger Door Module (FPDM). They are part of the window regulator motor assemblies inside their respective doors. PIA to get to and expensive to replace because they are small computers that control pretty much everything in their door. But, as cclive mentioned, the first thing to check is the latch power which is MUCH easier to get to and, if there is power there, the DDM and FPDM and BCM and... must all be good.
The relays that actually apply power to the latches are internal components of the BCM computer and do not appear to be accessible.
When a door doesn't open, the first thing to check is can it open? Are the components able to move freely. Next thing to check is that it is being told to open. Is there power to the latch?
The modiule mentioned would be either the Driver Door Module (DDM) or Front Passenger Door Module (FPDM). They are part of the window regulator motor assemblies inside their respective doors. PIA to get to and expensive to replace because they are small computers that control pretty much everything in their door. But, as cclive mentioned, the first thing to check is the latch power which is MUCH easier to get to and, if there is power there, the DDM and FPDM and BCM and... must all be good.
When a door doesn't open, the first thing to check is can it open? Are the components able to move freely. Next thing to check is that it is being told to open. Is there power to the latch?
01-11-2015, 01:23 PM
#30
Race Director
Member Since: Apr 2007
Location: Toronto, Canada
Posts: 15,945
Received 1,500 Likes
on
817 Posts
C7 of the Year - Unmodified Finalist 2021
will a code reader provide the answer to this, i.e., as to whether there is power being sent to the actuator?
Since this is a resurrected 2 year old thread, you are going to get lots of people talking about lots of different issues. That is one of the reasons to start a new thread when you have a new issue. But...
The modiule mentioned would be either the Driver Door Module (DDM) or Front Passenger Door Module (FPDM). They are part of the window regulator motor assemblies inside their respective doors. PIA to get to and expensive to replace because they are small computers that control pretty much everything in their door. But, as cclive mentioned, the first thing to check is the latch power which is MUCH easier to get to and, if there is power there, the DDM and FPDM and BCM and... must all be good.
The relays that actually apply power to the latches are internal components of the BCM computer and do not appear to be accessible.
When a door doesn't open, the first thing to check is can it open? Are the components able to move freely. Next thing to check is that it is being told to open. Is there power to the latch?
The modiule mentioned would be either the Driver Door Module (DDM) or Front Passenger Door Module (FPDM). They are part of the window regulator motor assemblies inside their respective doors. PIA to get to and expensive to replace because they are small computers that control pretty much everything in their door. But, as cclive mentioned, the first thing to check is the latch power which is MUCH easier to get to and, if there is power there, the DDM and FPDM and BCM and... must all be good.
The relays that actually apply power to the latches are internal components of the BCM computer and do not appear to be accessible.
When a door doesn't open, the first thing to check is can it open? Are the components able to move freely. Next thing to check is that it is being told to open. Is there power to the latch?
01-11-2015, 02:07 PM
#31
Race Director
Member Since: Apr 2007
Location: Toronto, Canada
Posts: 15,945
Received 1,500 Likes
on
817 Posts
C7 of the Year - Unmodified Finalist 2021
I checked for codes (with a reader) and there are none, when I hit the open switch on the outside and inside there is sound coming from the latch as though it is trying to open.
01-11-2015, 04:11 PM
#32
Le Mans Master
Member Since: Jan 2006
Location: Down south in Dixie
Posts: 6,801
Received 2,639 Likes
on
1,702 Posts
That helped mine. Good luck.
01-12-2015, 06:35 AM
#34
Le Mans Master
Then you have no electrical issue which is why there are no codes. It is strictly mechanical. Taking it out to see what is sticking or broken would be the next step.
01-14-2015, 08:29 PM
#36
Problem fixed here, long story made short. About 8 month ago I replaced the passenger side door window motor which is replaced as a complete unit, door module etc... short after that the passenger door could not be open from the outside, I did all the steps necessary. Changed the outside door pad, lubricated the door latch, checked the fuses and nothing seems to fix the problem. Today I replaced the passenger door speaker/bass since I had the door panel off I checked all connections, cables and cleaned all the connectors/plug with electric connectors cleaner, when I took off the old speaker I proceed to check the window motor connection the son of the gun was not fully connected pushed it in and everything its working now.
05-25-2016, 07:30 PM
#38
Drifting
I was experiencing the exact same problem about 3 weeks ago. Bought and installed a new door latch and problem is gone. I also replaced the door pads and the inside door switch. But, in the end, it was the door latch.
