If your vehicle has air bags, disconnect and isolate the negative battery cable and wait for two minutes so the air bag system capacitor can discharge and stop accidental deployment. To begin, remove the end cap from the driver's side of the dashboard, then remove the combination flasher from the relay and fuse block. At installation, fit the combination flasher into the right places in the relay and fuse block, confirming that all terminals fit into their cavities. Make sure the combination flasher is fully secure by pressing it all the way down onto the terminals. Following this, slide the end cap onto the driver's side end of the dashboard and reconnect the battery negative cable.