use a scan tool
use a code reader either press reset.
or
pull dome fuse with 2min , put back.
its reset.
On my 93 suzuki sidekick the check engine light came on at exactly 120000 miles.It can be reset if you take your drivers side speaker out you'll find a switch in there to reset it.If the problem occurs again then you probably have a real problem.If you vehicle is not running any different then I wouldn't be that concerned.
Usually a problem in the emission control system - have vehicle scanned to determine the problem
Try at least four, check the dipstick and see where you are from there. I have a '92 with a '98 engine and it uses four quarts.
get the CEL checked and fix the problem. Disconnecting the battery for 15 minutes will reset the light on an OBD1 vehicle.
A 1992 Suzuki Sidekick typically requires 10W-30 or 10W-40 motor oil for its engine. It's important to check the owner's manual for specific recommendations, as oil specifications can vary based on climate and driving conditions. Additionally, using a high-quality oil filter is recommended to ensure optimal engine performance.
To check the automatic transmission fluid on a 1994 Suzuki Sidekick, first ensure the vehicle is on a level surface and the engine is running. Locate the transmission dipstick, usually found near the back of the engine. Remove the dipstick, wipe it clean, reinsert it fully, and then remove it again to check the fluid level; it should be within the marked range. If necessary, add the appropriate type of transmission fluid through the dipstick tube.
Check this link http://carfix.stufftoread.com/find-parts.html
The engine oil capacity for a 1994 Suzuki Sidekick is approximately 4.5 quarts (or about 4.3 liters) when using a standard oil filter. When changing the oil, it's important to check the owner's manual for specific recommendations and to ensure you're using the correct oil type for your engine. Always verify the level with the dipstick after filling to avoid overfilling.
if you disconnect the o2 sensor cable in the air intake then start the engine you would see the check engine sign turned on in the gauge panel. It is on then the sensor is working if off the the sensor may have problems
check if you have fuel and spark it needs both to work
place the Diagnostic jumper and read out the flashes. http://www.kick-fix.com/CEL/CEL.html this looks complex but it covers 89 to 95 FED and California cars. then post your DTC errors here. code 12 is normal , but you will have others. http://www.suzuki-forums.com/suzuki-sidekick-escudo-vitara-geo-tracker/
There are a number of reasons why the check engine light comes on, on a Suzuki x90. This is an indication that there is some malfunction in the engine which requires attention.