Here is a list of the fault / malfunction codes that may appear on the scanmaster if you see a check engine light.
2: MAP sensor fault
3: MAT sensor fault
4: CLT sensor fault
5: TPS fault
6: Battery voltage fault
7: O2 sensor fault
8: Loss of sync (crank or cam sensor)
9: EGT sensor fault
10: Flex fuel sensor fault
11: MAF sensor fault
12: Knock sensor fault
13: Cam sensor fault, engine still has sync but is running in semi-sequential
14: Oil pressure out of range
15: Fuel pressure sensor out of range
16: EGT safety shutdown triggered
17: AFR safety shutdown triggered
2: MAP sensor fault
3: MAT sensor fault
4: CLT sensor fault
5: TPS fault
6: Battery voltage fault
7: O2 sensor fault
8: Loss of sync (crank or cam sensor)
9: EGT sensor fault
10: Flex fuel sensor fault
11: MAF sensor fault
12: Knock sensor fault
13: Cam sensor fault, engine still has sync but is running in semi-sequential
14: Oil pressure out of range
15: Fuel pressure sensor out of range
16: EGT safety shutdown triggered
17: AFR safety shutdown triggered