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1998 Toyota Corolla Door Locks


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slicksam 
Copper - Posts: 291
Copper spacespace
Joined: July 12, 2004
Location: Canada
Posted: November 10, 2019 at 8:05 AM / IP Logged Link to Post Post Reply Quote slicksam
Hello all,
Customer brought me a 1998 corolla to check doorlocks
He told me they don’t work(no sign of life). Then he told me that he had the car battery boosted, but it was boosted wrong. The cables work reversed.(not the first time I see that)
Ever since then, no doorlocks
I checked all fuses, switches, even broken wires.
Anyone have any thoughts
Testing is the key
geepherder 
Platinum - Posts: 3,668
Platinum spaceThis member consistently provides reliable informationspace
Joined: October 27, 2003
Posted: November 10, 2019 at 6:30 PM / IP Logged Link to Post Post Reply Quote geepherder
slicksam wrote:
The cables work reversed.(not the first time I see that)
Ever since then, no doorlocks
I checked all fuses, switches, even broken wires.
I'm assuming you mean the cables "were" reversed, not "work" reversed. If all fuses/switches work, my best guess would be the integration relay on the interior fuse box.
Since Ebay links are not allowed, search item 222773213264
My ex once told me I have a perfect face for radio.
slicksam 
Copper - Posts: 291
Copper spacespace
Joined: July 12, 2004
Location: Canada
Posted: November 15, 2019 at 3:54 PM / IP Logged Link to Post Post Reply Quote slicksam
correct WERE reversed
Just change that module, still not working.
any other idea
Testing is the key
geepherder 
Platinum - Posts: 3,668
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Joined: October 27, 2003
Posted: November 16, 2019 at 4:10 AM / IP Logged Link to Post Post Reply Quote geepherder
Have you tested the door lock actuators themselves? Assuming they test good, you could always rewire using relays. Here's the diagram according to Autozone:
1998 Toyota Corolla Door Locks -- posted image.
My ex once told me I have a perfect face for radio.
slicksam 
Copper - Posts: 291
Copper spacespace
Joined: July 12, 2004
Location: Canada
Posted: November 16, 2019 at 4:06 PM / IP Logged Link to Post Post Reply Quote slicksam
ok, I unplugged all actuators, and tested to see if i get 12 volts. I do not get 12volts. What wire should have 12v, and can I bypass it and add 12v to it?
Testing is the key
geepherder 
Platinum - Posts: 3,668
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Joined: October 27, 2003
Posted: November 16, 2019 at 5:53 PM / IP Logged Link to Post Post Reply Quote geepherder
Pins 3 and 4 (light blue/red and light blue/white) should be the door lock actuators. You can momentarily touch power to one and ground to the other and see if the doors lock or unlock, then reverse them.
I believe that's pin 8 (a little blurry), the white/light blue wire should have constant power.
Pin 16 (again, I think?), the white/black wire should be ground.
My ex once told me I have a perfect face for radio.
slicksam 
Copper - Posts: 291
Copper spacespace
Joined: July 12, 2004
Location: Canada
Posted: November 16, 2019 at 8:59 PM / IP Logged Link to Post Post Reply Quote slicksam
Is the light blue/red and light blue/white on the same plug as the white blue(constant) I found the white/blue and it does have a constant 12v
1998 Toyota Corolla Door Locks -- posted image.
1998 Toyota Corolla Door Locks -- posted image.
Testing is the key
geepherder 
Platinum - Posts: 3,668
Platinum spaceThis member consistently provides reliable informationspace
Joined: October 27, 2003
Posted: November 17, 2019 at 4:33 AM / IP Logged Link to Post Post Reply Quote geepherder
I guess not. There doesn't appear to be a wire at pin 4 of either harness. I suggest pulling one of the door panels and checking the wire colors at the actuators. Then you can verify with a continuity test back to the other harnesses.
My ex once told me I have a perfect face for radio.
slicksam 
Copper - Posts: 291
Copper spacespace
Joined: July 12, 2004
Location: Canada
Posted: November 18, 2019 at 8:33 PM / IP Logged Link to Post Post Reply Quote slicksam
I finally soved this problem. I had to change the complete fuse box. Everything works normally. I will be opening up the fuse box to see the damages that were done. Pics to follow....
Testing is the key

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