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26 Circuit Direct Fit 1970-73 Camaro Harness  By Painless Performance

P/N 20112

26 Circuit Direct Fit 1970-73 Camaro Harness

GM Column Ignition

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Year: 1970-1973
Make: Chevrolet
Model: Camaro
Engine: Carbureted or Any Stand Alone Fuel Injection
Trans.: Any
American Made


This 26 circuit direct fit 1970-1973 2nd Gen Camaro harnesses has virtually every connector installed on the harness out of the box. This harnesses are split into three sections (engine, interior, & rear) and features a fully integrated ground circuit. You'll find many upgrades in ths harnesses such as a 6 gauge charge wire and a 150 amp midi fuse. Also available is a 150+ page full color step by step manual that also covers many alternative wiring options and each wire is custom printed with the circuit identification as well as using GM color codes for easy installation.

NOTE: Factory A/C wiring is not included, as this option seemed to almost change year to year. These harnesses DO include the power wire for the A/C switch to make it as easy as plugging in your original A/C harness, an aftermarket reproduction harness, or an aftermarket A/C system. These harnesses DO include a new blower motor harness for those with heat only systems. 

Wiring for factory power window/locks is also not included but available as a separate part number. Painless part # 30715 is a factory style power window/power lock harness for these vehicles if a replacement harness for this option is needed. Like the A/C wires, these chassis harnesses DO include the power wires for the power window/lock option making it another easy plug in to a factory power window/lock harness or the Painless Power Window/Lock Harness.



Number of Circuits: 26
Fuse Type: atc
Firewall Passthrough: bulkhead
Color Code Based: GM

This harness includes circuits for:

  1. Accessory
  2. Accessory / Cigarette Lighter 
  3. Backup Lights
  4. Blower Motor
  5. Brake Lights
  6. Charging
  7. Courtesy and Dome Light
  8. Electric Choke
  9. Electric Fuel Pump
  10. Emergency Flashers
  11. Fused Power Source
  12. Glove Box Light
  13. Headlights
  14. Horn (Relay)
  15. Ignition Coil
  16. Instrument Panel Lighting and Gauges*
  17. Park Lights
  18. Power Door Locks
  19. Power Windows
  20. Radio/Clock (Constant and Switched) 
  21. Seat Belt Lights
  22. Starting
  23. Tail Lights and License Plate Light
  24. Turn Signals
  25. Under Hood Light
  26. Wipers and Washer Pump

* Including Wires For:
Aftermarket Gauge Power
Brake Warning Light
Fuel Gauge
Gear Indicator Light
Key Buzzer
Oil Gauge
Temperature Gauge

 26 Circuit Direct Fit 1970-73 Camaro Harness  By Painless Performance



ECM Flash Program



This is a basic start and run tune that we only recommend for a near stock application. We will only change the following parameters: delete VATS/PASS-KEY security, cooling fan on/off temperatures, rear end gear ratio, tire size, speed limiter, rpm limiter, idle rpm, and we will adjust the check engine light parameters. If your setup requires any other parameters tuned you will need to locate a local tuner. All ECMs are left unlocked to allow easy access for your tuner.

Step 1: Purchase one of the qualifying part numbers. See below for that list.

Step 2: If your part number is highlighted RED proceed to step 3B. If your part number is highlighted BLACK, proceed to step 3A.

Step 3A: If you have arrived at this step, your harness does not come with an ECM and you must provide one to be flashed. Please reference the manual with your harness to confirm the ECM part number required.

Step 4A: Once you have received your harness, please cut the Barcode label from the box as shown in the picture below.

Step 5A: Package and mail your ECM along with the Barcode label, a copy of your purchase receipt, and your ECM form that you are about to complete. (The address will be provided after you complete the form). We will pay for return ground shipping*. If you request a faster service, you will need to provide a return label.

Step 3B: If you have arrived at this step, your purchase comes with an ECM. You must fill out our ECM form BEFORE your purchase will ship. Proceed to Step 6.

Step 6: Click the “Start Here” button below to fill out our ECM questionnaire.

Step 7: Once we have the ECM, we will use the data from the form to flash the ECM. Then, once it has been flashed we will package the ECM and ship it back to you. If we encounter a question, we will contact you. This process can take 1-3 days.

Step 8: Once you receive your ECM, it is ready to go.


*Note: Our free return shipping is ONLY good for the lower 48 states, via ground UPS. If you are outside of those states, you must provide a return shipping label with your order. If your purchase comes with an ECM, the shipping will be covered via the retailer you purchased from.



Click the Start Here button below to get your FREE ECM Flash!

Click Here To Start The ECM Reflash Process


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