what color goes where???
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Junior Member
Joined: Jan 2009
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what color goes where???
I have a broken overdrive switch , Ineed to know the color code so can rig up a temp switch , I have three wires showing , the truck seems to be in overdrive with these wires not connected to anything now.1998 ford F 150
thanks bob
thanks bob
Technical Article Contributor
Joined: Jun 2002
Posts: 10,511
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From: Under the flightpath of old ORD 22R
You would need a SPST switch, and a 820 ohm resistor to do this, it is not just a switch.
the input to the PCM is red w/ yellow stripe wire to tan w/ white stripe. Open i OD on, closed switch is OD off.
The indicator lamp is an output from the PCM.
You would need the same size bulb to start with.
The bulb is white w/ light green to the bulb to the 820 ohm resistor to red w/ yellow stripe wire.
I do not know if the OD on/off will work turn off without the bulb. You could just try the switch part, but the out come is unknown.
bulb seems to only be an indicator, but it might sense the bulb not there when OD is off, and create an error ?? Got me, never tried this.
Also the OD function reverts to on after a key cycle, so I think this would be a momentary switch. Maybe this is a latching switch ( solid state ) and the bulb circuit is what keeps it latched with a given key cycle ???
I would just order the correct switch, and leave the truck in OD until you get the new one installed.
the input to the PCM is red w/ yellow stripe wire to tan w/ white stripe. Open i OD on, closed switch is OD off.
The indicator lamp is an output from the PCM.
You would need the same size bulb to start with.
The bulb is white w/ light green to the bulb to the 820 ohm resistor to red w/ yellow stripe wire.
I do not know if the OD on/off will work turn off without the bulb. You could just try the switch part, but the out come is unknown.
bulb seems to only be an indicator, but it might sense the bulb not there when OD is off, and create an error ?? Got me, never tried this.
Also the OD function reverts to on after a key cycle, so I think this would be a momentary switch. Maybe this is a latching switch ( solid state ) and the bulb circuit is what keeps it latched with a given key cycle ???
I would just order the correct switch, and leave the truck in OD until you get the new one installed.