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  • The harness is a passive part. We already check the harness works well. You can double ch​eck each wire. 

Check the harness

  • Use a digital camera or other device to check the AV input of the TV works well
  • Use a 6~12V battery (Use a multimeter to check the battery voltage) to make a connection as shown in the following picture to provide the power supply for the camera. Plug the RCA connector into a TV AV input. If you can see the camera image shown on the screen, then the cable and camera works well​

Check Camera