The turn signal / hazard flasher is located under the drivers side dash near steering wheel, usually to the right of steering wheel.
![Datsun 240z hazard flasher](https://240z.life/wp-content/uploads/2022/02/240z-hazard-flasher.jpg)
The horn relay is located under the drivers side dash near steering wheel, usually to left of steering wheel.
![Datsun 240z horn relay top](https://240z.life/wp-content/uploads/2022/02/240z-horn-relay1-e1644359148135-1024x768.jpg)
![Datsun 240z horn relay side](https://240z.life/wp-content/uploads/2022/02/240z-horn-relay2-1024x768.jpg)
The accessory relay is located on the side panel passenger front, behind it. The thicker wires are the main power wires for the accessories. They drop down from the dash harness on the right side of heater controls. Be sure to check the color of the wires on the relay and the wires that drop downs. If in doubt continuity test them.
![Datsun 240z ACC relay](https://240z.life/wp-content/uploads/2022/02/240z-ACC-relay-Thxs-Miles-1.jpg)
![Datsun 240z ACC relay aka Accessory Relay wires](https://240z.life/wp-content/uploads/2022/02/240z-ACC-relay-Thxs-Miles-2.jpg)
The accessory relay is located on the side panel passenger front, behind it. The thicker wires are the main power wires for the accessories. They drop down from the dash harness on the right side of heater controls. Be sure to check the color of the wires on the relay and the wires that drop downs. If in doubt continuity test them.