Behind the center console to the left of blower.
Remove the kick panel to the center console at the driver's right leg (left wheel drive). The flasher relay is black, about 1" by 1", three pins, and easily accessible right behind the panel. -Blue Goose
four
YES
No
Passenger kickpanel....next to jetronic computer...it is a blak box....with six terminals petrudin when disconnected from piggy tail harness
SIGNAL RELAY IS A BOX BEHIND THE LH CONSOLE PLASTIC NEAR THE GAS PEDAL ! Remove panel 1 Phillips and 1 odd fastener plastic ! Look behind the carpet near the front away from the pedal !! KM
under the dash, driver side
You did not say what year. On the 1989 Volvo 240 GL, the headlight relay is mounted on the drivers side front fender just back from the battery box. The relay has two plugs going into the bottom and I would say about 1 inch wide, 2 inches long and about 1.5 inches deep. The relay that you're referring to is the high beam relay. The headlight relay switch is located in the cab of the car behind the brake and gas pedals. You pull back the carpeting and it is mounted to the firewall.
The 1991 Volvo brake light relay switch is located beneath the drivers side dashboard. The brake light relay switch will be above the brake pedal.
It is in the center dash, behind the panel in the left side footwell.
up to 60 in its tank
Remove the fuse from the fuse box. Or remove the relay.