To replace a 240 dl bulb failure warning sensor, first disconnect the vehicle's battery to ensure safety. Locate the sensor, typically found near the rear light assembly or in the vehicle's fuse box. Remove the old sensor by disconnecting its wiring harness and unscrewing it if necessary, then replace it with the new sensor and reconnect the wiring. Finally, restore power by reconnecting the battery and test the system to ensure the warning light is no longer illuminated.
Replace the burned out bulb
In a 1991 Volvo 240, the bulb failure sensor is located in the rear driver’s side corner of the engine compartment, mounted on the inner fender. It is part of the vehicle's lighting system, designed to monitor the operation of the vehicle's exterior lights. If a bulb fails, the sensor triggers a warning light on the dashboard. Make sure to check the connections and functionality if you suspect issues with the sensor.
To turn off the position bulb failure warning on a 2002 Volvo V70 XC AWD, first, check and replace any burned-out position bulbs, as the warning is triggered by faulty lights. If the bulbs are functioning correctly, you may need to reset the warning by disconnecting the battery for a few minutes. Reconnect the battery, and the warning should clear. If the issue persists, consult a professional or a Volvo specialist for further diagnosis.
replace the burnt out bulb
it means a brake-lamp bulb has burned out
If you mean the bulb failure light; The bulb failure detector compares the current drawn by the left bulb to the right bulb and lights the bulb failure light if the currents are not equal. I have never seen a bad one. The usual reason the light is still lit after the bad bulb is changed is because the new bulb is not an exact match or the contacts are corroded. Try two new bulbs. Good Luck
Replace the bulb that is burnt out.
Replace the defective bulb.
You have a wiring issue or a bad brake light bulb.
when the tube ends blacken after failure of the tube heaters
Replace the burnt out light bulb
Tail Light Failure sensor has detected a bad bulb or there is a loose connection. Have someone step on brak with headlights on...see what doesn't light or is dim. If dim, tighten screws on contact wires inside bulb holder assembly.