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Full Version: Relocating the ECU: Hardbody D21/Pathfinder WD21
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The ECU was relocated from under the passenger seat, to the dash.

This was done to prevent electrical failure due to water in the cab. The truck can now withstand water to hood-height on the outside and/or water to the top of the seats (36") without stalling.

Glovebox and back panel removed. Passenger seat removed, ECU unscrewed from the floor, and wires removed from the floor channel and exposed.

[Image: RelocateECU001.jpg]

Two of the brackets had to be rebent.

[Image: RelocateECU003.jpg]

The evaporator is to the right of the screwdriver. No screws can go there.

[Image: RelocateECU004.jpg]

After final fitting, I mounted the ECU with two self-tapping screws. The ECU needed more bracing, so I trimmed the backpanel as shown and reattached it. The notched backpanel now helps hold the ECU snugly in place.

[Image: RelocateECU005.jpg]

The switch and LEDs are now more easily acsessable.

[Image: RelocateECU006.jpg]

Now, to make the glovebox work. Here is the stock box.

[Image: RelocateECU009.jpg]


I got medieval on it with a propane torch to reshape the back so it will clear the ECU.

[Image: RelocateECU012.jpg]
[Image: RelocateECU013.jpg]

Here is the box reinstalled. Not much space was lost.

[Image: RelocateECU011.jpg]

Box installed. All that remains to be done is to tie up the harness and clean up.

I gained some usable space under the passenger seat from this, not to mention a bit more peace of mind when wheeling.

[Image: RelocateECU010.jpg]
i was gonna do that on my pathfinder, but when i tried crossing a bend in the river i crossed 50 times before, it had washed out and the water was only 6 inches from the top of my windshield, lol..... two days later after flushing everything and new ecu, was back driving again. good write up too.....
Nice work Res. Always up to something!
I have always hated the ECU was mounted on the floor and just like always you have figured out the perfect place to relocate it and still look clean and stock. Great Job RES!!! Coolthumb
Once again res, you have done an excelent job. I like the glove box reshaping.
Rezmcgyver, you never cease to amaze me. Niiice work!
Reserector Wrote:I gained some usable space under the passenger seat from this, not to mention a bit more peace of mind when wheeling.

[Image: RelocateECU010.jpg]

And added some more yellow to the interior.
i really have no clue why the ecu would be mounted on the floor - most vehicles it is located in the engine bay and i guess moving inside the cab keeps it away from the elements (heat, moisture) but in most cases on this board most people trod in muddy boots and from time to time get some h20 in tha cab... i like the stock look and it certainly does make sense to move that guy off the floor - again great write up
601cherokee Wrote:And added some more yellow to the interior.

Ha ha! That is all hidden, now.
Reserector Wrote:Ha ha! That is all hidden, now.

But why? It was coordinated!!Yeah
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