4dr power lock issue
#1
Honda-Tech Member
Thread Starter
4dr power lock issue
One day my locks on all but my driver door on my four door stopped locking/unlocking with the key fob. You can manually lock each door on the door itself, but if you try to use the switch inside on the driver door it doesn't unlock/lock them either. Any ideas?
#2
Old Fart
Join Date: May 2004
Location: kelowna, bc, canada
Posts: 26,173
Likes: 0
Received 14 Likes
on
14 Posts
Re: 4dr power lock issue
Check for broken wiring in the drivers door wire boot, [rubber boot between door and chassis, it is a common problem to have broken leads in the drivers door boot as it is the door that is opened/closed the most. 94
#4
Old Fart
Join Date: May 2004
Location: kelowna, bc, canada
Posts: 26,173
Likes: 0
Received 14 Likes
on
14 Posts
Re: 4dr power lock issue
Then either the actuators in the other doors are NG or, because it is effecting all other doors, there is a break in the wiring for the other acutators where the split off the the lines coming from the PDLCU.
What is the MM&Y of your 4door. 94
What is the MM&Y of your 4door. 94
#6
Honda-Tech Member
Thread Starter
Re: 4dr power lock issue
Still have this issue. Broke into the front doors to see if they were getting power. Just check the fronts and the passenger side is getting power to the actuator when I press the lock unlock buttons. Anyone else have any ideas?
Trending Topics
#8
Re: 4dr power lock issue
I'm having some what the same problems except I have a 2door. My driver side will work fine with the key but my passager side I have to try to open the door will turning the key to unlock it. Sometimes my locks don't want to unlock or lock by using the switch. Sometimes they both will unlock and lock constantly for second or 2 by using the switch then they unlock. should I try what you suggested him? or is there another cause?
#9
Honda-Tech Member
iTrader: (1)
Join Date: Aug 2003
Location: Left Coast : High Altitude, Top Floor
Posts: 7,616
Likes: 0
Received 1 Like
on
1 Post
Re: 4dr power lock issue
I'm having some what the same problems except I have a 2door. My driver side will work fine with the key but my passager side I have to try to open the door will turning the key to unlock it. Sometimes my locks don't want to unlock or lock by using the switch. Sometimes they both will unlock and lock constantly for second or 2 by using the switch then they unlock. should I try what you suggested him? or is there another cause?
The OP's issue is still in the air because not enough info is known just yet.
#10
Old Fart
Join Date: May 2004
Location: kelowna, bc, canada
Posts: 26,173
Likes: 0
Received 14 Likes
on
14 Posts
Re: 4dr power lock issue
The power door lock system in your car is a, "Polarity Reversing Ground at Rest Central Locking System" meaning both the leads going to the actuators are grounds at rest, [not locking or unlocking].
It is the first test you should perform, make sure both the leads going to the actuators, white/red and yellow/red, the blue/red, blue/white and black also going to the drivers door actuator is for the central locking switch in the actuator.
If both leads going to the actuators test as grounds, [full continuity the chassis ground] you will need to test for reversing polarity, a simple 12V test light is the easiest way to do it, unplug the actuator and connect the test light ground clip to one of the terminals in the plug, connect the test light probe to the other terminal in the plug, [they will be the white/red and yellow/red leads] rock the power door lock switch on either door to lock and unlock or you can also use the remote, [key fob], test light must light up when locking and unlocking the doors, if so, replace the actuators, if not, replace the Power Door Lock Control Unit, [in drivers door].
Before you replace the PDLCU test for power, [white/green] and ground, [black] to the PDLCU, if good replace the unit. 94
It is the first test you should perform, make sure both the leads going to the actuators, white/red and yellow/red, the blue/red, blue/white and black also going to the drivers door actuator is for the central locking switch in the actuator.
If both leads going to the actuators test as grounds, [full continuity the chassis ground] you will need to test for reversing polarity, a simple 12V test light is the easiest way to do it, unplug the actuator and connect the test light ground clip to one of the terminals in the plug, connect the test light probe to the other terminal in the plug, [they will be the white/red and yellow/red leads] rock the power door lock switch on either door to lock and unlock or you can also use the remote, [key fob], test light must light up when locking and unlocking the doors, if so, replace the actuators, if not, replace the Power Door Lock Control Unit, [in drivers door].
Before you replace the PDLCU test for power, [white/green] and ground, [black] to the PDLCU, if good replace the unit. 94
Thread
Thread Starter
Forum
Replies
Last Post
EG94dude
Honda Civic / Del Sol (1992 - 2000)
2
02-16-2010 05:44 PM
A Tribe Called Honda
Honda Accord (1990 - 2002)
1
02-27-2007 01:31 PM