Question about Cars & Trucks
To clarify, by your statement, "only 3 wires going TO it", you mean the wires go UP TO the ignition switch, but are not hooked up to it, right?
Here's a top AND bottom pic of the switch:
Not that when the switch is turned over, the contacts are reversed (contacts on the right normally are on the left when switch is turned over).
Here's an (explained) view of the BOTTOM of the switch:
NOTE THE TWO JUMPER WIRES
You stated the BLACK wire goes to the battery, HOT (+) I assume, so that would go to the long, curved terminal marked POWER IN.
This will be on your right when looking down on the TOP of the switch (remember,the layout is backwards when the switch is turned over).
The other wires (RED and BLUE), you'll have to follow them back to see which is the IGNITION, and which is the LIGHTS.
They will go to the appropriate switch terminal.
Lights to the one marked LIGHTS in the above mentioned illustration, and the one from the ignition to the terminal marked IGNITION.
Again, yours is not the standard wiring color code, probably because of a rewire in the past, so I can not tell if the RED wire goes to the ignition, or the lights, nor can I tell about the BLUE wire.
Posted on Feb 11, 2014
The red one should be a power wire that is connected to the battery and provides power to the accessories --run and start positions. The blue one probably goes down to the starter solenoid to activate the solenoid to spin the starter . Black in an auto system normally indicates an earth wire so if it is connected to the battery it should be on the negative terminal. The old ignition switch never had a lights section as the battery light and dash lights got power from the red wire when the switch is in the run position only.
Posted on Feb 11, 2014
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Posted on Jan 02, 2017
HERE U GO. THIS IS ALL THE WIRE COLURS.
1997 Jeep Grand Cherokee Car Stereo Radio Wiring Diagram.
Car Radio Constant 12V+ Wire: Red/White
Car Radio Switched 12V+ Wire: Red/Gray
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Blue/Red
Car Radio Dimmer Wire: Orange
Car Radio Antenna Trigger Wire: Green/Red
Car Radio Amp Trigger Wire: N/A
Front Speakers Size: 5 1/4′
Front Speakers Location: Doors
Left Front Speaker Wire (+): Green
Left Front Speaker Wire (-): Brown/Red
Right Front Speaker Wire (+): Purple/Yellow
Right Front Speaker Wire (-): Blue
Rear Speakers Size: 5 1/4′
Rear Speakers Location: Rear Doors
Left Rear Speaker Wire (+): Brown/Yellow
Left Rear Speaker Wire (-): Brown/Light Blue
Right Rear Speaker Wire (+): Blue/White
Right Rear Speaker Wire (-): Blue/Pink
Posted on Feb 12, 2009
SOURCE: trailer light problem
Check it with a test light. White-ground, Yellow-left turn, Green-right turn, Brown-tailights. Check it on the truck first. There are seperate fuses for just the trailer wiring in the fuse box under the hood. The Blue and Red wires are for Trailer brakes, don't worry about those.
Posted on Mar 14, 2009
Ford has substantially altered their 1978-86 electronic ignition test
procedure. Due to the sensitive nature of the system and the complexity
of the test procedures, it is recommended that you refer to your dealer
if you suspect a problem in your 1978-86 electronic ignition system.
The system can, of course, be tested by substituting known good
components (module, stator, etc.)
This system, which at first appears to be extremely complicated, is actually quite simple to diagnose and repair. Diagnosis does, however, require the use of a voltmeter and an ohmmeter. You will also need several jumper wires with both blade ends and alligator clips.
The symptoms of a defective component within the solid state system are exactly the same as those you would encounter in a conventional system. Some of these symptoms are:
- Hard or no starting - Rough idle - Poor fuel economy - Engine misses while under load or while accelerating
If you suspect a problem in your ignition system, first perform a spark intensity test to pinpoint the problem. Using insulated pliers, hold the end of one of the spark plug leads about 1 / 2 inch; (12.7mm) away from the engine block or other good ground, and crank the engine. If you have a nice, fat spark, then your problem is not in the ignition system. If you have no spark or a very weak spark, then proceed to the following tests.
Tell if you are talking about this ignition system...
Hope this help.
Posted on May 11, 2010
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