I changed out my dash insturments ans when I started the sammy up  the sensor light came on. I did not notice this on my other dash(light might have been out) I tried to flip the switch on the left lower drivers dide but the light goes out then comes bach on, The new odom has 65,000 miles on it. the owner manual says it come on at 60,000 miles. but whe I filp the switch it stays on.
         Where and how do I check for codes? Please help   thanks    Allen  oh   1987 samurai

You have to leave the switch in the new position for it to work.

If I understand you , I am suppose to slide the switch to where the light stays off? When I slide it one way the light goes out when I slide it back the light will come back on and then start to flash on and off.                          Allen

If it is working correctly slide it till it goes off and it should flash on for a second when you start it to let you know that the light bulb is working, if it is flashing a code you have other problems, a 12 is all is good, one blink followed by two blinks.

If I understand you , I am suppose to slide the switch to where the light stays off? When I slide it one way the light goes out when I slide it back the light will come back on and then start to flash on and off.                          Allen

Correct. It's like a double light switch, downstairs and upstairs, if you put the light on donwstairs it's on, but if you switch it to the other side (upstairs) it's out. Now if you put it in the position you started out downstairs its on again. Get it?
Hmmm, might be a little vague on the explanation but you got it right anyway