Isuzu Repair: sensor light in a 1989 Isuzu Trooper, negative battery cable, isuzu trooper

Question
What is the proceedure that has to be performed in order to turn out the o2 sensor light in a 1989 Isuzu Trooper?

Answer
you can either replace the o2 sensor, which is relatively easy to replace, but not easy on your wallet!. Or you can disconnect your negative battery cable for 30 seconds and reconnect to clear your p.c.m  Any other problems just let me know. im here to help!