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Did you try unhooking the battery
how do you reset engine light on 1991 volvo 240
With an OBD2 code reader
With an OBD2 code reader
disconnect the battery for 1min or so the light will go off
There are a few different ways to reset the check engine light on this vehicle. You can either have a mechanic use a scan tool, remove the battery cables and touch them together, or fix the problem to get the light to go off.
Disconnect the battery for 5 minutes get the radio code before doing this
Disconnect the red battery cable. Wait a few moments and reconnect it.
yes
To reset the airbag warning light on a Volvo V40, you must take the vehicle to the dealer. The dealer will check the airbags and turn off the light using a specific tool.
Disconnect the red battery wire then reconnect it.
In order to get your SRS Service Airbag light reset, You have to go to the Volvo dealership.