1. Purchase an OBD II code reader machine from an auto parts store.
2. Or the easier, cheaper way: take your vehicle to Aamco Transmissions or Midas shop and they will check it for free!
If the Volvo is 1995 or newer, they can pull the codes very easily.
If it's 1994 or older, they can pull the codes but it takes more labor.
Whichever shop you go to may charge you if your Volvo is 1994 or older. But you can always try to negotiate the price down and see if they'll go for it.
The Aamco I took my '94 to wanted $98. I said forget it, but since they took so long with my car they through in the test free.
Under the hood, there's a black diagnostics box, with a light, a button, and a pin attached to a wire. There are two receiving slots, numbered 2 and 6. Stick the pin into a slot, and hold the button for 6 seconds, and repeat for the other slot.
You do battery reset, if that doesn't help then go to diagnostics and Engine ECU and check what code does it give.
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.
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.
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.
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