How to route wires from engine bay to cab? - Ford Transit USA Forum
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post #1 of 9 (permalink) Old 08-17-2019, 07:06:PM Thread Starter
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How to route wires from engine bay to cab?

I'm doing the Stationary Elevated Idle Control (SEIC) mod and need to run wires from the driver's side of the engine compartment to under the dash somewhere. I see where the main wiring harness pokes thru the fire wall behind the radiator overflow bottle. Considering poking another hole in the rubber grommet thingy, running my wore thru and sealing the result w/ RTV or 5200 if I get carried away.



Any other options anyone has seen?

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post #2 of 9 (permalink) Old 08-18-2019, 12:16:AM
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WARNING: Harnesses passing through
sheet metal must be through protective
grommets that also ensure a watertight
seal. A windscreen type sealer should be
used. Adhesive or tape is not acceptable.
NOTE: Holes must permit the appropriate
connector to pass through.
NOTE: The maximum size of additional wire
bundle diameter is 6mm
There are three locations in the dash panel which
have been identified for additional holes to route
wires through. See figure E145360 (view from
engine bay) for locations. The number of suitable
locations will depend on the vehicle specification.
The grommets in locations 1 and 2, shown in figure
E145360, are molded directly to wire bundles in
polyurethane foam material. It is not possible to
feed extra wires through with the wire bundle. The
grommets have an 'indent' molded into the surface
face, engine bay side, which show the positions
where an additional hole can be made
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post #3 of 9 (permalink) Old 08-18-2019, 02:27:AM
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Check the BEMM, but on my 2015 there are already 2 unassigned pass through wires that go from under the center console tray to the engine compartment in front of the driver. I used them to connect power for my driving lights. I'll try to look it up. Stand by..m

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post #4 of 9 (permalink) Old 08-18-2019, 02:44:AM
JP4
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Here they are if you have the upfitter switches. Pin 1 and 2 from the C12-A connector in the dash come out as Pin 2 and 3 of the C11-H connector on the drivers side engine compartment.
JP
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File Type: jpg Bemm2.JPG (127.1 KB, 7 views)
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post #5 of 9 (permalink) Old 08-18-2019, 06:58:AM
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Quote:
Originally Posted by JP4 View Post
Pin 1 and 2 from the C12-A connector in the dash come out as Pin 2 and 3 of the C11-H connector on the drivers side engine compartment.
I used one of those pins for a connection in my 2018 wagon and do not have the upfitter switches, just the towing package and TBC. It would have been nice to have a connector to properly plug into C11-H, didn't have time to hunt one down.
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post #6 of 9 (permalink) Old 08-18-2019, 11:35:AM
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Quote:
Originally Posted by asdrew View Post
I used one of those pins for a connection in my 2018 wagon and do not have the upfitter switches, just the towing package and TBC. It would have been nice to have a connector to properly plug into C11-H, didn't have time to hunt one down.
Good to know they exist in rigs without the upfitter switches. Thanks.

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post #7 of 9 (permalink) Old 08-18-2019, 03:43:PM Thread Starter
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Quote:
Originally Posted by spotco2 View Post
WARNING: Harnesses passing through
sheet metal must be through protective
grommets that also ensure a watertight
seal. A windscreen type sealer should be
used. Adhesive or tape is not acceptable.
NOTE: Holes must permit the appropriate
connector to pass through.
NOTE: The maximum size of additional wire
bundle diameter is 6mm
There are three locations in the dash panel which
have been identified for additional holes to route
wires through. See figure E145360 (view from
engine bay) for locations. The number of suitable
locations will depend on the vehicle specification.
The grommets in locations 1 and 2, shown in figure
E145360, are molded directly to wire bundles in
polyurethane foam material. It is not possible to
feed extra wires through with the wire bundle. The
grommets have an 'indent' molded into the surface
face, engine bay side, which show the positions
where an additional hole can be made

The BEMM dated 06/2018 has mostly the same words as you posted above. The red text in your quoted post are missing from the updated BEMM. However, I intend on poking a new hole in the grommet and sealing it. There is even a nipple sticking out from the rubber grommet just asking to be cut off on the engine side.

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post #8 of 9 (permalink) Old 08-18-2019, 03:46:PM Thread Starter
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Quote:
Originally Posted by JP4 View Post
Here they are if you have the upfitter switches. Pin 1 and 2 from the C12-A connector in the dash come out as Pin 2 and 3 of the C11-H connector on the drivers side engine compartment.
JP

Thanks, did not know about those. The SEIC function requires 3 wires min (if you use a fixed resistor to program idle speed and leave it in the engine compartment) or 6 wires if you want to have a potentiometer-adjustable elevated idle speed.
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post #9 of 9 (permalink) Old 08-21-2019, 09:58:AM
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Looking for an X-plan PIN
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