General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

door locks just click/hot relay

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Old Jun 18, 2014
  #1  
glindy's Avatar
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From: FLO,MO
door locks just click/hot relay

2000 ranger sc4x door locks have 12.3v at door switches,but drop to 0v when activated. Tried a known good actuator and it just clicked/moved a bit also. Pulled relay (7)box from under dash and found a relay that was hot to touch with nothing activated,pulled it and it clicks when inserted,like its shorted to something.Turns out it is the power window relay,but they work fine. Pulled kick panels and disconnected each main door plug,tried opposite side locks,but they still just click. Also pulled RAP module as it will not activate doors at all,but door leads to it have 14v engine on.
Would this indicate a short under dash between the power window wires and the door lock wires? Not sure if their are any other relays or modules that would do this.
I have disconnected the PW relay for now,as the old one had blue plugs from being hot,guess i need a fire extinguisher just in case.
Also does anyone have a diagram to ID the other 6 relays and routing of PW/door wiring?
 
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Old Jun 19, 2014
  #2  
Rev's Avatar
Rev
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From: San Diego, CA
Originally Posted by glindy
2000 ranger sc4x door locks have 12.3v at door switches,but drop to 0v when activated. Tried a known good actuator and it just clicked/moved a bit also. Pulled relay (7)box from under dash and found a relay that was hot to touch with nothing activated,pulled it and it clicks when inserted,like its shorted to something.Turns out it is the power window relay,but they work fine.
This may be the Accessory Delay Relay. It will stay active until the Battery saver Relay is timed out by the GEM.


Originally Posted by glindy
Also does anyone have a diagram to ID the other 6 relays and routing of PW/door wiring?
I have the wiring diagrams for the PW and PD. I believe the owners manual may have the relay location/ID. If you'd like the diagrams, shoot me a PM with an email address and I'll email them to you.
 
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Old Jun 19, 2014
  #3  
glindy's Avatar
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From: FLO,MO
Sent you a PM. I have OM it only lists side dash and under hood boxes,the relays under dash are a mystery.
 
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Old Jun 25, 2014
  #4  
glindy's Avatar
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From: FLO,MO
Figured it out. Lock motors have built in thermistors for protection,when they go bad little/no voltage gets to motors = voltage drop to 0.
Took em apart and did one wrap aluminum on thermistor (rectangle)screwed em back together and they all work fine with switches and remotes
 
Attached Thumbnails door locks just click/hot relay-locks-001-800x531-.jpg   door locks just click/hot relay-locks-005-800x531-.jpg   door locks just click/hot relay-locks-003-800x531-.jpg  
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