The Stovebolt Site Forums The Shop Area The Electrical Bay turn signal problem

I am wiring my 56 Chevy pickup after taking it apart a few years ago. I am trying to figure out where the wires for the turn signals plug in to. I found several wiring diagrams but none show the turn signal wires. Even the service manual I have omits the replacement of the switch. Any clear diagrams out there?

Just a quick google search:

Is this what you are looking for?

I have a seven wire switch on my 51 truck with this wiring: Click. Colors do vary from unit to unit.

Yes that is very helpful. I did not find that drawing. Thanks

If you are reassembling a factory turn signal set-up, there will be connector plugs near where the wires exit the column. If not you may have some rewiring to do.

Turn signal tech tip may help.

I just worked on my turn signal/brake light wiring. If you are using your original wiring harness the 8 wire plug should be dropping down from behind your column from behind the dash. If you are using an original or new original replacement turn signal switch harness the color of the wires will just need to line up (turn signal housing Guide D2-53). If you are using an aftermarket one that might not be the case.

signals were an optional accessory, found in the accessory installation manual - factory wiring diagram about the 4th page

Bill

Here is the way my 1956 Chevy 3100 was wired I made this cheat sheet

1956 Chevy 3100 Original Factory Wiring
Headlamps…………………………………………………………………………………………………………
High Beam 20 Ga. Light Green Light green from “U” on the dimmer floor switch
Low Beam 20 Ga. Tan Tan from “L” on the dimmer floor switch
Ground 20. Ga Black To the ground chassis
Parking/Turning Signal Lights…………………………………………………………………………………...
Park Lamps 20. Ga Violet From the “PK” on light switch
Horn………………………………………………………………………………………………………………..
Horn 14 Ga. Black From terminal “H” on the horn relay
Lighting Switch Assembly………………………………………………………………………………………...
Terminal “GRD” 20 Ga. White Plain wire to the dome light
Terminal “D” 20 Ga. Orange Ribbed wire to the dome light
Terminal “T” 20 Ga. Black To the tail lamps
Terminal “BAT” 14 Ga. Red From the terminal “BAT” on the ignition switch
Terminal “BAT” 16 Ga. Red To acc. jct. block
Terminal “S” 20 Ga. Orange To the brake petal switch stop lamps
Terminal “PK” 20 Ga. Violet To the parking lamps
Terminal “H” 20 Ga. Light Blue To the floor dimmer switch Headlamps
Terminal “PL” 20 Ga. Gray To the 5 instrument lights (3 in the cluster, 1 in the
ignition, 1 in the heater control panel, & 1 in the
cigarette lighter)
Terminal “PL” 18 Ga. Gray To the acc. jct. block
Brake Petal Switch ………………………………………………………………………………………………
In 20 Ga. Orange From Terminal “S” on light switch assembly
Out 20 Ga. Nat. White To stop lights
Floor Dimmer Switch……………………………………………………………………………………………..
Terminal “BAT” 20 Ga. Light Blue From terminal “H” on the light switch
Terminal “L” 20 Ga. Tan To the low headlight beams
Terminal “U” 20 Ga. Light Green To the high headlight beams
Terminal “U” 18 Ga. Light Green To the high beam indicator light in cluster
Temperature Gauge
In 20 Ga. Pink From terminal “IGN1” to the temperature gauge
Out 16 Ga. Dark Green From the temperature gauge to the sending unit
Gas Gauge Tank Unit…...………………………………………………………………………………………...
Gasoline Meter 20 Ga. Brown Attaches to the bolt on sending unit from the gas meter
Ground 20 Ga. White Attaches to screw on sending unit to the ground chassis
Stop Lights…………………………………………………………………………………………………………
In 20 Ga. Nat. White From the brake petal switch
In 20 Ga. Black From terminal “T” on the light switch assembly
Cigarette Lighter…………………………………………………………………………………………………..
In 16 Ga. Red From the terminal “BAT” on the ignition switch
In 20 Ga. Gray To light
Ignition Switch…………………………………………………………………………………………………….
Terminal “BAT” 16 Ga. Red To cigarette lighter
Terminal “BAT” 14 Ga. Red To terminal “BAT” on lighting control assembly
Terminal “IGN2” 20 Ga. Dark Green To the coil and resister on the fire
Terminal “Start” 20 Ga. Violet To the solenoid switch on the starter
Terminal “IGN1” 20 Ga. Brown To the resistor on the fire wall
Terminal “ACC” 20 Ga. Pink To flasher
Terminal “IGN1” 20 Ga. Pink To gasoline gauge
Terminal “ACC” 14 Ga. Pink To the acc. jct. block



Gasoline Meter…………………………………………………………………………………………………….
In 20 Ga. Pink From the terminal “ACC” on ignition switch
Out 20 Ga. Brown To gas sending which attaches to the bolt
Instruments Lights 4 lights in gauge cluster…………………………………………………………………….
20 Ga. Gray From the terminal “PL” on light switch
Acc. Jct. Block…………………………………………………………………………………………………….. 16 Ga. Red From terminal “BAT” on the lighting switch assembly
14 Ga. Pink To terminal “ACC” on the ignition switch assembly
20 Ga. Gray From the terminal “PL” on the lighting switch assembly
Horn Button……………………………………………………………………………………………………….. 20 Ga. Tan From the terminal “S” on the horn relay
Horn Relay…………………………………………………………………………………………………………
Terminal “H” 16 Ga. Black To the horn
Terminal “B” 14 Ga. Red From terminal “B” on the voltage regulator
Terminal “S” 20 Ga. Tan To the horn button
Voltage Regulator…………………………………………………………………………………………………
Terminal “B” 14 Ga. Red To terminal “B” on the horn relay
Terminal “B” 12 Ga. Red To ammeter
Terminal “A” 14 Ga. Brown From terminal “A” on generator
Terminal “F” 20 Ga. Dark Blue From terminal “F” on generator
Turning Signal Assembly in Steering Column…………………………………………………………………..
20 Ga. Yellow From the flasher
20 Ga. Dark Blue To the right front turn signal
20 Ga. Dark Blue To the right front turn signal indicator
20 Ga. Light Blue To the left front turn signal
20 Ga. Light Blue To the right front turn signal indicator
20 Ga. Pink To the white stripe wire going to the left stop lamp
20 Ga. Purple To the white strip wire going to the right stop lamp
20 Ga. White To the stop lamp floor petal switch
Flasher……………………………………………………………………………………………………………...
20 Ga. Pink From terminal “ACC” on the ignition control switch
20 Ga. Yellow To the turning signal assembly in the steering column
High Beam Indicator light in Instrument Cluster………………………………………………………………
18 Ga. Light Green From the wire attached to “U” on the dimmer switch
Coil…………………………………………………………………………………………………………………
Positive 20 Ga. Dark Green From Terminal “IGN2” on ignition switch
Negative 20 Ga. White To screw terminal on distributer body
Ammeter…………………………………………………………………………………………………………...
Positive 12 Ga. Red From terminal “B” on the voltage regulator
12 Ga. Black To the battery terminal on the starter solenoid
Resistor……………………………………………………………………………………………………………..
20 Ga. Dark Green To the coil and to the terminal “IGN2” on ignition
20 Ga. Brown From terminal “ACC” on the ignition switch
18 Ga. Brown To the windshield wiper switch
Generator…………………………………………………………………………………………………………..
Terminal “F” 20 Ga. Dark Blue To terminal “F” on the voltage regulator
Terminal “A” 14 Ga. Brown To terminal “A” on the voltage regulator
Starter……………………………………………………………………………………………………………...
Solenoid Winding 20 Ga. Violet From terminal “Start” on the ignition switch
Battery Terminal 12 Ga. Black From the ammeter
Battery Terminal 4 Ga. Black From the battery
Starter Body 6 Ga. Copper Strap to chassis
Battery……………………………………………………………………………………………………………...
Positive 4 Ga. Black From positive side to the battery terminal on the starter
Negative 6 Ga. Copper Strap Negative side of battery to the chassis
Deluxe Heater/Vent/ Blower……………………………………………………………………………………...
Switch Red From acc. jct. block
Switch Brown To blower motor
Windshield Wiper…………………………………………………………………………………………………
18 Ga. Brown From resistor to the windshield wiper motor