| Engine Code | Engine Code Description |
|---|---|
| P1625 | PCM System Reset |
| P1626 | Theft Deterrent Fuel Enable Signal Lost |
| P1627 | A/D Performance |
| P1628 | ECT Pull-Up Resistor |
| P1629 | Theft Deterrent System-Cranking Signal |
| P1630 | Theft Deterrent Learn Mode Active |
| P1631 | Theft Deterrent Start Enable Signal Not Correct |
| P1632 | Theft Deterrent System-Fuel Disabled |
| P1633 | Ignition Supply Power Circuit Low Voltage |
| P1634 | Ignition 1 Power Circuit Low Voltage |
| P1635 | 5 Volt Reference 1 Circuit |
| P1636 | PCM Stack Overrun |
| P1637 | Generator L-Terminal Circuit |
| P1638 | Generator F-Terminal Circuit |
| P1639 | 5 Volt Reference 2 Circuit |
| P1640 | Driver 1-Input High Voltage |
| P1641 | FC Relay 1 Control Circuit |
| P1642 | FC Relay 2 And 3 Control Circuit |
| P1643 | Engine Speed Output Circuit |
| P1644 | TP Output Circuit |
| P1645 | EVAP Solenoid Output Circuit |
| P1646 | Driver 1 Line 6 |
| P1647 | Driver 1 Line 7 |