If their is a relay it will be under the center console near the gear selecter. I believe however, it's a solenoid mounted on the left side of the transmission.
Not so.
Pull the glove box out and look to your left under the center dash vents. The relay is white and in a clip that is attached to the dash frame
under the dash, driver side
Remove the fuse from the fuse box. Or remove the relay.
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.
Check either: Solenoid, Wiring, Switch, or OD Relay.
how do you reset engine light on 1991 volvo 240
long answer: yes
In the upper part of the front passenger footwell, up near the top of the floor mat. Pull the padding down and look up between the back of the glove box and the firewall. It has 6 prongs. There is also the overdrive relay in that area, which has 5 prongs.
replace ign sw on 1991 volvo 240
Need to replace the OD relay which is behind the glove box. Remove glove box and look to left. White relay. Found on eBay for 12 bucks. Hope that is the problem.
DoT 4
Behind the center console to the left of blower.
Overdrive relay switch behind the middle air vents..... Manual Transmission: the wires sometimes break if it is the type with the button on the gear/knob/ stick........... if it is a manual transmission.......the switch on the gearbox which tells when 4th gear is engaged can be faulty.....and will not allow the overdrive to engaged.