94' Ranger 4 Wheel Drive Module
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94' Ranger 4 Wheel Drive Module
...I'm not getting any power to my 4WD module. The fuses are good and there is power going to the fuses. I checked both power lines going in with a DMM....nothing.
Does the power go straight from the fuse to the module?
It's different than the '93 module, so the schematic in the maintenance section doesn't apply for me.
Does the power go straight from the fuse to the module?
It's different than the '93 module, so the schematic in the maintenance section doesn't apply for me.
Post Fiend
Joined: Jan 2003
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From: Connecticut
Welcome.
Fuse #7 (20A) in the Engine Compartment is hot at all times and runs directly to the 4WD module (DG/LG). The circuit runs through a few harness connectors which are part of the main wire harness configuration.
Fuse #7 (15A) inside the Cab is hot in Start or Run and also runs directly to the module. However, there is a splice in the circuit and another wire runs to the 4WD switch. So this fuse actually powers both the module (W/P) and the switch (R/Y).
Fuse #7 (20A) in the Engine Compartment is hot at all times and runs directly to the 4WD module (DG/LG). The circuit runs through a few harness connectors which are part of the main wire harness configuration.
Fuse #7 (15A) inside the Cab is hot in Start or Run and also runs directly to the module. However, there is a splice in the circuit and another wire runs to the 4WD switch. So this fuse actually powers both the module (W/P) and the switch (R/Y).
Last edited by Rockledge; Sep 28, 2007 at 10:42 PM.
Post Fiend
Joined: Jan 2003
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From: Connecticut
Originally Posted by chris9n
Thanks Rockledge!!
So as a test, I COULD run 2 jumper wires straight from the battery to the connector just to test the system?
So as a test, I COULD run 2 jumper wires straight from the battery to the connector just to test the system?
In any case, you should pull both fuses out before you run 12V directly to the module and/or switch.
And keep in mind that a circuit needs a good ground to operate. There looks to be two ground wires for the module, BK and BK/O.
Last edited by Rockledge; Oct 1, 2007 at 10:36 AM.
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AWESOME!!
Thanks!
My dad gave me the truck....the 4WD worked for him, then it just quit. I thought it was the module, but I couldn't get power to it to check it.
Also, he changed transmissions, and I didn't know if any of the connections went to the trans 1st, then to the module(in case he messed up connecting stuff back together....LOL)
Thanks!
My dad gave me the truck....the 4WD worked for him, then it just quit. I thought it was the module, but I couldn't get power to it to check it.
Also, he changed transmissions, and I didn't know if any of the connections went to the trans 1st, then to the module(in case he messed up connecting stuff back together....LOL)
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Ok, I checked the continuity on the 5 pin from the module to the dash switches.....they are all OPEN. Is there a connector between the module and dash that could be disconnected.
I ran the jumpers to the module to get power...that worked.
HELP!! LOL :-)
I ran the jumpers to the module to get power...that worked.
HELP!! LOL :-)
Laughing Gas
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From: The 'Loops
The computer controller will not play unless the shift motor position sensor "knows" what gear the transfer case is in check out this link https://www.ford-trucks.com/forums/s...d.php?t=123542 most of the time this is what a "nothing happens " 4 wheel no start problem is.
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Post Fiend
Joined: Jan 2003
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From: Connecticut
Originally Posted by chris9n
Ok, I checked the continuity on the 5 pin from the module to the dash switches.....they are all OPEN. Is there a connector between the module and dash that could be disconnected.
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Originally Posted by Rockledge
Yes, according to the '94 Ford Manual, aside from the 4WD switch connector (C206) and the module connector (C204), there is another connector (C202) located "Below center of I/P" which means behind the center of the dash toward the bottom. It is supposedly black in color but in my experience the Manual is not very reliable when it comes to connector colors.
....now...do you know anything about cruise control. It doesn't work.
The connector was actually black!!! :-)
Last edited by chris9n; Nov 19, 2007 at 08:41 AM.
Laughing Gas
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From: The 'Loops
That is funny, of course my attempt at problem solving "assumed" everything was pluged in and connected! KISS, that is what I get for assuming, glad my truck had everything plugged in or I would have had a real adventure.
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