| P1602 | Loss of EBTCM Serial Data |
| P1603 | Loss of SDM Serial Data |
| P1604 | Loss of IPC Serial Data |
| P1605 | Loss of HVACC Serial Data |
| P1605 | Keep Alive Memory Failure (Ford) |
| P1605 | Powertrain Control Module (Mazda) |
| P1607 | Malfunction In PCM Internal Circuit (Acura) |
| P1610 | Loss of PZM Serial Data |
| P1611 | Loss of CVRTD Serial Data |
| P1617 | Engine Oil Level Switch Circuit |
| P1621 | PCM Memory Performance |
| P1626 | Theft Deterrent System - Fuel Enable Circuit |
| P1630 | Theft Deterrent - PCM in Learn Mode |
| P1631 | Theft Deterrent - Password Incorrect |
| P1632 | Theft Deterrent - Fuel Disabled |
| P1633 | Ignition Supplement Power Circuit Low Voltage |
| P1633 | Keep Alive Power Voltage Too Low (Ford) |
| P1634 | Ignition 1 Power Circuit Low Voltage |
| P1635 | 5 Volt Reference Circuit (GM) |
| P1635 | Tire/Axle Out Of Acceptable Range (Ford) |
| P1639 | 5 Volt Reference 2 Circuit (GM) |
| P1639 | Vehicle ID Block Not Programmed Or Corrupt (Ford) |
| P1640 | DTC's Available In Another Module (Ford) |
| P1640 | Driver 1 - Input High Voltage |
| P1641 | Malfunction Indicator Lamp (MIL) Control Circuit |
| P1642 | Vehicle Speed Output Circuit |
| P1644 | Delivered Torque Output Circuit |
| P1645 | EVAP Solenoid Output Circuit |
| P1646 | EVAP Vent Valve Output Circuit |
| P1650 | Driver 2 - Input High Voltage |
| P1650 | Power Steering Pressure Switch Malfunction (Ford) |
| P1650 | Power Steering Pressure Switch Out Of Range (Mazda) |
| P1651 | Power Steering Pressure Switch Input Malfunction (Mazda) |
| P1651 | Power Steering Pressure Switch Signal Malfunction (Ford) |
| P1652 | Lift/Dive Circuit |
| P1654 | Cruise Disable Output Circuit |
| P1656 | Automatic Transaxle (Acura) |
| P1660 | Cooling Fan Control Circuits |
| P1660 | A/T FI Data Line Failure (Acura) |
| P1676 | FPTDR Signal Failure (Acura) |
| P1678 | FPTDR Signal Line Failure (Acura) |
| P1680 | Clutch Released Switch Circuit (CHRYSLER) |
| P1681 | No I/P Cluster CCD/J1850 Messages Received (CHRYSLER) |
| P1681 | A/T FI Signal A Low Input (Acura) |
| P1682 | A/T FI Signal A High Input (Acura) |
| P1682 | Charging System Voltage Too Low (CHRYSLER) |
| P1683 | Speed Control Power Relay or S/C 12V Driver Circuit (CHRYSLER) |
| P1685 | Skim Invalid Key(CHRYSLER) |
| P1686 | No SKIM Bus Message Received (CHRYSLER) |
| P1686 | A/T FI Signal B Low Input (Acura) |
| P1687 | A/T FI Signal B High Input (Acura) |
| P1687 | No Cluster Bus Message (CHRYSLER) |
| P1689 | Traction Control Delivered Torque Output Circuit (GM) |
| P1693 | DTC Detected In Companion Mode (CHRYSLER) |
| P1694 | Fault In Companion Mode (CHRYSLER) |
| P1695 | No CCD/J185O Message From BCM (CHRYSLER) |
| P1696 | PCM Failure EEPROM Write Denied (CHRYSLER) |
| P1697 | PCM Failure SRI Mile Not Stored (CHRYSLER) |
| P1698 | No Bus Message From TCM (CHRYSLER) |