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Old 11-26-2022, 09:25 PM #1
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Center Diff Lock Switch Question

Hey there.

Took the 405Runner out today and was trying to get the center diff to lock. But no luck. I remember it working awhile back, but we haven't had much bad weather lately so never messed with it.

The light works, since it blinks when the 4WD is engaging.

So, I pulled the switch, and I don't have any continuity between any of the points when its neutral, or when I push it down. So I'm just thinking it's a bad switch. Looked all over the FSM but can't find a pin out for it or a test. Just wanted to see what others thought.

Edit: Guess I remembered wrong. I havent done anything under the dash other than a new ignition switch. So, guess I just remember the yellow ball blinking.
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Last edited by 405Runner; 11-27-2022 at 05:50 PM.
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Old 11-27-2022, 10:32 AM #2
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Quote:
Originally Posted by 405Runner View Post
Hey there.

Took the 405Runner out today and was trying to get the center diff to lock. But no luck. I remember it working awhile back, but we haven't had much bad weather lately so never messed with it.

The light works, since it blinks when the 4WD is engaging.

So, I pulled the switch, and I don't have any continuity between any of the points when its neutral, or when I push it down. So I'm just thinking it's a bad switch. Looked all over the FSM but can't find a pin out for it or a test. Just wanted to see what others thought.
When you say switch are you talking about the button you push or one of the sensor switches on the transfer case/front diff?
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Old 11-27-2022, 10:50 AM #3
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Push button switch.
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Other -AMP'd UP Hidden Winch Mount, Badlands 12k winch, VSC/TRAC mod
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Old 11-27-2022, 05:49 PM #4
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Figured it out.

PO must have been in there messing around. There are 2 plugs that fit the switch. Finally sat down and found the switch in the wiring diagram and it said only a grey/white-black wire ran to it, the plug that was inserted had 4 wires, and it only had the white-blk wire. So, Plugged in the correct one, and bam-o works.
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Other -AMP'd UP Hidden Winch Mount, Badlands 12k winch, VSC/TRAC mod
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