| PCode | Code | Brand | Description |
|---|---|---|---|
| P0689 | P0689 | BMW | ECM/PCM Power Relay Sense Circuit Low |
| P0690 | P0690 | BMW | ECM/PCM Power Relay Sense Circuit High |
| P0691 | P0691 | BMW | Fan 1 Control Circuit Low |
| P0692 | P0692 | BMW | Fan 1 Control Circuit High |
| P0693 | P0693 | BMW | Fan 2 Control Circuit Low |
| P0694 | P0694 | BMW | Fan 2 Control Circuit High |
| P0695 | P0695 | BMW | Fan 3 Control Circuit Low |
| P0696 | P0696 | BMW | Fan 3 Control Circuit High |
| P0697 | P0697 | BMW | Sensor Reference Voltage "C" Circuit/Open |
| P0698 | P0698 | BMW | Sensor Reference Voltage "C" Circuit Low |