Have vehicle scanned to determine problem
The service engine light has to be reset with a scanner. Disconnecting the battery will not work. The light will come back on unless you make the necessary repairs.
No
Try disconnecting the battery for 10 minutes. May reset the light--if problem persists light will come back on
TAke it to the dealer. They have check out charts for times when the computer doesn't set codes.
If the problem has been corrected, you can clear the codes by disconnecting the ground cable from your battery for at least 10 seconds. After being repaired. if your Blazer has the OBDII system it needs to be cleared with the scan tool. The procedure above works for the OBDI system.
you need to flash the computer,
Use a diagnsotic code scanner to find out why the light is on, repair the problem and if the light doesn't go out after the problem is solved, it should after the engine has been started about 3 times.
The 4.3L.
It's the " service engine soon " light to the left of the gas gauge instead of the " check engine " light , like it is on my 1995 Ford Explorer
You can find a diagram for the vacuum system in a 1995 Blazer 4x4 will be located in the Blazer service manual. The manual can be purchased in most auto parts.
pepboys.
The 1995 Chevrolet Blazer ABS relay switch is located on the firewall in the engine compartment. The relay switch will be on the passenger side of the firewall.