1. Blown fuse: There are two fuses that control the parking lights in your Integra. The first is the "Parking" fuse, which is located in the under-dash fuse box. The second is the "Tail" fuse, which is located in the engine bay fuse box. If either of these fuses are blown, the parking lights will not work.
2. Bad relay: The parking lights are also controlled by a relay, which is located in the under-dash fuse box. If the relay is bad, the parking lights will not work.
3. Faulty switch: The parking lights are turned on and off by a switch located on the dashboard. If the switch is faulty, the parking lights will not work.
4. Loose or damaged wiring: The parking lights are wired to the fuse box and the relay through a series of wires. If any of these wires are loose or damaged, the parking lights will not work.
To troubleshoot the problem, you can start by checking the fuses. If either fuse is blown, replace it with a new fuse of the same size. If the fuses are both good, you can check the relay. To do this, remove the relay from the fuse box and inspect it for any signs of damage. If the relay is damaged, replace it with a new relay.
If the relay is good, you can check the switch. To do this, turn the parking lights on and off several times. If the parking lights do not turn on when you turn the switch on, the switch may be faulty. You can replace the switch by removing the dashboard cover and disconnecting the switch.
If the switch is good, you can check the wiring. To do this, you will need to use a multimeter to test the continuity of the wires. If any of the wires are loose or damaged, you will need to repair them.
Once you have found and repaired the problem, the parking lights should work properly.