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1969-1974 Nova Universal Wiring Harness

Painless 20102 wiring harness.

1969 Chevy Nova wiring harness.

1970 Chevy Nova wiring harness.

1971 Chevy Nova wiring harness.

1972 Chevy Nova wiring harness.

1973 Chevy Nova wiring harness.

1074 Chevy Nova wiring harness.

While this Painless wiring harness is their universal GM muscle car kit, it works very well on the 1969-1974 Chevy Nova and is recommended by Painless for the 1969-1974 Nova.

Universal 18 Circuit kit is modified to include custom features to make it easier to wire 1969-1974 GM Muscle Cars.

A pre-wired factory style bulkhead connector plugs into the fuse block through the firewall in the stock location.

Factory original quick connect terminals are included for the in dash printed circuit board.

Pre-terminated plugs for the ignition switch, dimmer switch, headlight switch, blower motor, wiper motor and turn signal switch are included.

Number of Circuits: 18 Fuses w/ Horn Relay & Maxi Fuse

Harness Length: Factory Fitment

Fuse Type: Blade & Maxi Fuse

Firewall Passthrough: Bulkhead Connector

Color Code Based: Factory GM

Connectors Included: Ignition switch, dimmer switch, headlight switch, blower motor, wiper motor and turn signal switch, 10SI & 12 SI Alternator, HEI Power and Tach and 20 Extra 56 Series Terminals for use with any Factory GM 56 Series Connector such as Headlight Switch, Wiper Switch or A/C Switch/Blower Motor.

Circuit Designations: Printed on Wires

This harness includes circuits for:

Headlight Switch-Power to headlight switch. Power wires out of headlight switch to head light dimmer switch, tail lights, dash lights and park lights.

Dimmer Switch wires include power from headlight switch and power out to low and high beam headlights.

Wiper Switch- Power to wiper switch and the wires between wiper switch and your wiper motor.

Turn Signal Switch- Power into and out of your column mounted turn signal switch. Also included in this kit are both styles of GM turn switch connectors. Note: these will connect to most aftermarket and factory steering columns.

Heat/AC Switch- Power into switch and wires between switch and blower motor/resistor block.

Ignition Switch- Power into and out of to fuse block (ignition, crank and accessory)

Brake Switch- Power into and out of brake switch. This includes a third brake light wire.

Courtesy Lights- Power and ground circuits for dome light activation.

Alternator- Charge wire and alternator field activation wires. (Most alternators can easily be wired up to this Painless harness). Included in kit is a high output alternator wire that allows you to use up to a 140 Amp alternator.

Horn- 40 Amp horn relay mounted to fuseblock

Radio- Harness includes constant B+ (for preset memory) and ignition hot circuits for any aftermarket or factory radio. Also included are two pairs of speaker wires.

Starter- Crank signal wire for starter solenoid.


electric choke

coil power

coil to tach signal oil pressure

engine temperature

A/C compressor clutch control wire


right and left high and low beam headlights

turn signals

park lights


tail lights

brake lights

turn signal lights

fuel gauge sender

third brake light

reverse lights




oil pressure




high beam and turn indicators

gauge illumination.

DOOR SECTION WIRES INCLUDE: power windows and locks


cruise control

power antenna

electric fuel pump

cigarette lighter/accessory output


fuseblock mounting bracket

rubber grommet

4 inch zip ties

70 Amp maxi fuse and a large assortment of crimp style connectors.

Most important of all an illustrated installation manual that equips you with the needed information to install the harness to your vehicle.

1969-1974 Nova wiring harness Painless Performance 20102 PAINLESS-PERFORMANCE-20102
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