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WD21 door lock timer


ahardb0dy
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check on here, it's another Nissan forum that has gotten together with NPORA in the past on group buys and stuff,

 

http://infamousnissan.com/forum/index.php

 

join and contact David29 he sells Nissan parts (used) and usually has a lot of parts available.

 

I'm a member there also, same user name

 

dimmer switch on E-bay $18.90

 

http://www.ebay.com/itm/93-Nissan-Pathfinder-dash-light-dimmer-switch-rheostat-knob-/181602563279?pt=Motors_Car_Truck_Parts_Accessories&hash=item2a485b34cf&vxp=mtr

 

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The switch for the back hatch is in the latch, in the hatch. It's a crappy design and a common thing to have fail (the cargo light will start coming on randomly). I ended up rewiring mine to a different switch rather than try and fix the weird little rubber wedge thing.

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Any good way to check the timer?

 

Aside from proper diagnostics, running voltage to the right leads and checking the relay circuits operate properly, the cheap-o way is to visually inspect the solder points. I had to do this right off the bat with mine, and sure enough a visual "ring" around one of the solder contacts could be seen, indicating that solder contact had cracked and was only giving intermittent contact. Resolder and has been working fine since.

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  • 2 weeks later...
  • 1 month later...

93 Pathy. Door locks haven't worked for years. Read this and soldered what looked like some loose connections on the door timer. Locks work now but lock automatically.

When I get in and lock the doors then unlock and open the door as if I'm getting out of the vehicle the shut the door they all lock automatically.

Any suggestions?

Thanks in advance.

Does it have a factory alarm? If yours has the alarm it may be set to passive (if the alarm has that function to begin with). Good luck.

Edited by jj big shoe
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  • 2 months later...

I was looking for more info on door lock timers and found the link below. I didn't stop to think that they would be found in other Nissans (D'oh!). The one in his repair pics looks like the one I grabbed from a 94 Pathy. This gives us a few more models other than the Pathfinder to look in when scouring the yards.

 

http://www.q45.org/timers.html

 

 

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  • 6 years later...

Today, my door locks no longer work. This is a serious matter, since my door locks are worn out to the point they no longer turn. SO i use the double turn to unlock my doors. 
Since my power locks no longer work, I can't unlock my vehicle.

I'm trying to trouble shoot it, but none of these old photos are loading up. 
Where is the relay I should be looking for, or where is the door lock timer?

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Driver's side, behind the lower cargo trim panel. Little plastic box with a sticker on it that says door lock timer, though you may not be able to see that until it's out. The relay is on the board inside. JJBigshoe's link above still works and the innards shown there look about like what I remember.

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On 5/28/2021 at 3:41 AM, Slartibartfast said:

Driver's side, behind the lower cargo trim panel. 


"Lower Cargo Trim Panel"?
I have already read that. I don't know what that is.

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Open the rear hatch. Look left, at the side window, the one that says Pathfinder on it. Then look down. That long trim panel, with the access hatch for the tail light bulbs at one end and the rear seatbelt going through the other, that's the panel you need to remove. The jack cover may be in the way if you still have one of those. The jack and its bracket don't need to come out. The panel is held in by push-clips. The whole thing just pops out. The rear striker trim (long piece between the carpet and the hatch seal) is kind of in the way, but you can work around it. Slide the seatbelt out of its slot and set the trim panel aside.


These pictures will guide you from there, but basically find the ASCD module (cruise control) and look down.


The '90 service manual shows the two and four-door component locations side by side on EL-90. When they revised the manual for the round-dash trucks, someone got their illustrations mixed up, and they threw out the four-door diagram and left the two-door.

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After hours of more searching, I also independently found that link that you shared. 

https://pathfinder.tuskr.net/articles/pathfinder-1994-nissan/door-lock-timer.html

It's still hard to tell from those photos, but it appears that the 'Door Lock Timer' is above the rear wheel, and slightly behind, judging from what carpet that we can see in the edge of the photo. 

It looks like I'm going to a junk yard, and I'm going to try to find that relay/timer, and just try to replace it as a crap shoot? I don't suppose anyone has any known way to test that unit with a multimeter, and know what pins to check?

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That's where it is, yes. At some point you just have to pull the trim panel off and look for the thing.

 

Electrical troubleshooting for the power door locks starts on BF-15 of the '95 manual. Wiring diagram is on BF-18.

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Thanks. The door locks are working intermittently, so I need to figure out what's going on. Maybe a bad connection, maybe the Door Lock Timer is starting to go bad? 
Do they slowly fail, or fail hard?

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Cracked solder joints in the timer do make sense for an intermittent failure. Certainly not the only thing it could be, but it's an easy place to start.

The locks in my '95 went bonkers when I freed up a seized driver's door lock cylinder. Doors would re-lock after unlocking, or when I shut the door, or the lock motor would fight against me turning the key in the first place. Resoldering the timer didn't hurt but it didn't fix it, either. I'm pretty sure it was the switch in the door, but it only acted up when it was cold enough that I didn't want to mess with it, so I never tracked it down.

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