| PCode | Code | Brand | Description |
|---|---|---|---|
| P0649 | P0649 | Speed Control Lamp Control Circuit | |
| P0650 | P0650 | Malfunction Indicator Lamp (MIL) Control Circuit | |
| P0651 | P0651 | Sensor Reference Voltage “B” Circuit/Open | |
| P0652 | P0652 | Sensor Reference Voltage “B” Circuit Low | |
| P0653 | P0653 | Sensor Reference Voltage “B” Circuit High | |
| P0654 | P0654 | Engine RPM Output Circuit | |
| P0655 | P0655 | Engine Hot Lamp Output Control Circuit | |
| P0656 | P0656 | Fuel Level Output Circuit | |
| P0657 | P0657 | Actuator Supply Voltage "A" Circuit/Open | |
| P0658 | P0658 | Actuator Supply Voltage "A" Circuit Low |