Question about 1991 Ford Ranger Supercab

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Starting issue, replaced everything except relays...they are next but I need a diagram to identify specific functions for my own sanity. Thanks Ron

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Should be in the manual

Posted on Jun 05, 2010


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Hello XN,

Without any vehicle specifics... you are going to get
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Check all the bulbs first...
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Un-plug the relay and measure the filament voltage through the bulbs... If you cannot see the bulbs (resistive grounds) through the bulbs... and the bulbs, battery, relays & sockets are all good..
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Hi Madalyn, Below is a link to a 296 page user manual for a 2006 Ford Escape, The fuse box diagram you're looking for is in the "fuses and relays section" starting on page 202 through to 208. If you need to print a page make shore you ONLY print the page number and not 296 of then Take care......

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My blower motor fan quit working completely all at once.

In the power distribution panel (located in the engine compartment) are the main fuses and relays. When you pull off the cover, there is a diagram schematic identifying each one of them. Should you remove the relays out of the power distribution panel, be aware of their orientation before removing them so that you can put them back in the same location of orientation; since some relays have double terminal blocks that serve two distinct circuit components that are rated specifically to that circuit.

One side of the terminal block could be good while the other defective.

Or the relay could be sitting loosely in the terminal block; try wiggling or re-seating it.

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In the absence of any diagram on either covers, consult with the owner's manual that came with your will have a detailed picture identifying the fuses and relays in the PDP and Fuse panel.

If everything checks ok, then you'll have to check the switch that controls fan speed, the motor resistor block, and the fan itself

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I was having problems with the car not starting at times, turn the key and nothing would happen and the next time it would work fine. I replaced the ignition switch and now the car starts every time but...

Sounds like a poor electrical connection somewhere. See if there is a relay in the fuse panel associated with these functions. If so, you could replace that. Without schematics for the car it will be tough, but look for wiring that could be damaged or connectors that could be bumped in and around the dash area.
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You can try swapping it out with one of the other ones to see if it makes any difference. If not next suspect would be ECM.

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