Passenger headlight blinker works intermittently. The blinker bulb burns when the headlights are activated and when I double lock the car with the fob. When I turn on the blinker, the bulb does not blink. The mirror blinks. The tail blinks. I replaced the bulb. Replaced the headlight wiring harness. Replaced fuses. Cleaned connectors. Cleaned the ground. I know next to nothing about cars. I'm a google mechanic. Please help me with a solution. Also, the front passenger tire pressure sensor has stopped working. I recently had it replaced, so it's very new.

Passenger side tire pressures will not come up on dashboard says service tire pressure monitor system
Four-wheel drive will not switch on stays in two wheel drive says service four-wheel drive on dash