Hello all, have issue w/ no start on 2000 cherokee,dash says NO BUS. Have checked all suggested sensors. ie MAP,CKP, VSS, CMP, TPS, PCM pin 17 all have 4.1v with batt at 13.6v. Check for 12v at pin 2 and 22, and ground at pin 31 and 32 all looks good. Can u he... Login to read more.