To start, the Ignition key must be in position II, engine not running. Locate the two diagnostic sockets just inboard of the washer fill cap. The "A" connector (shown above) has a jumper that is stored in the lid of the "A" diagnostic connector. The jumper is used for both diagnostic connectors. Listed below is the information retrievable from the various connections. A1 Transmission B1 Climate Control A2 Fuel System B2 Cruise Control A3 ABS B5 SRS A5 TCU (Transmission Control) B6 Power Seat A6 Ignition System A7 Combined Instrument Normally "Check Engine Light" information will be found in A2. Put the jumper into A2 and push the black button for one second. Count the red LED light as it blinks back information, blink, blink, pause, blink, blink, blink, pause, blink, blink, is an example of the response you would receive. 2-3-2 would be the code retrieved, now push the button again for one second, again count the blinks, keep checking for codes until one of them repeats, this means you have read all the codes. Now to clear the codes, push and hold the button for 6-7 seconds, release and as soon as the LED comes on push and hold the button for another 6-7 seconds. Now push the button for one second and read the codes again, you should get 1-1-1 (no faults). You Must Read All Codes before Clearing. Turn the ignition off and then start the car, the check engine light should be out. It is always a good idea to check for codes, clear them and then drive the vehicle to see if they return before replacing parts. The transmission can ask the check engine light to be turned on, so if you try clearing A2 codes and they wont go away try reading the transmission (A1), clear them , and then go back to A2.
After contacting a Volvo dealer, they recommended the Haynes series of manuals for the 850, each section details the codes and faults detected.
how do you reset engine light on 1991 volvo 240
Did you try unhooking the battery
You do battery reset, if that doesn't help then go to diagnostics and Engine ECU and check what code does it give.
disconnect the battery for 1min or so the light will go off
With an OBD2 code reader
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 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.
You reset the check engine light with a scan tool after repairing the failure.
The check engine light has to be reset with a OBD scan tool
Disconnect the red battery cable. Wait a few moments and reconnect it.
Disconnect the battery for 5 minutes get the radio code before doing this
how do i reset the check engine light on a 1999 acura 3.2tl
on most vehicles if you disconnect the battery cables it will reset the check engine light
hoe do you reset the check engine light in a 1995 land rover
The check engine light comes on in a car when there is a problem with the engine. It will go off or be reset when the problem is fixed.
You need a scan tool to properly reset the check engine light.
How do you reset check engine light for the 2009 Chevy trail blazer?
There is no reset button for the check engine light. It must be reset with an OBD scan tool.
The check engine light can be reset two ways. 1) If the problem resolves itself, the check engine light will reset itself after a certain amount of cold starts of the car on the on board computer system. 2) You need an OBD reader that has the reset check engine light capability.
how do you reset check engine light in 2008 buick lucerne
How do you reset engine light on jeep liberty diesel
Reset the Check Engine Light by disconnecting the battery for about 10 minutes.
The check engine light has nothing to do with an oil change. The check engine light is reset with a scan tool after repairing the failure that caused it.
It is important to make sure the check engine light is not on when having a car inspected. A person can reset the check engine light by clearing the codes that are causing the light to go on.
To reset the check engine light on a 1998 Honda Civic located the blue 15 amp fuse in the engine bay fuse box. The fuse is labeled ECU, and will reset the check engine light when removed.