Engine off turn key forward until lights go on. On the firewall in the corner by the driver is a blinker box. carefully remove the top press the button and hold for 5 seconds the light should come on. release and repeat .the light should go off. the codes are erased now. To check start car or put the pigtail into hole two. press button for three seconds and release. the red light will blink the code 111 is no codes.
Did you try unhooking the battery
how do you reset engine light on 1991 volvo 240
You do battery reset, if that doesn't help then go to diagnostics and Engine ECU and check what code does it give.
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.
The check engine light has to be reset with a OBD scan tool
You reset the check engine light with a scan tool after repairing the failure.
The check engine light is reset with a scan tool after repairing the cause of the fault.The check engine light is reset with a scan tool after repairing the cause of the fault.
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.