Typical Malfunction Thresholds
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
| One of the following conditions is met | Conditions A, B, C or D |
| A. All of the following conditions are met | - |
| EGR1 output terminal voltage level | Low |
| Either of the following conditions is met | 1 or 2 |
| 1. Step motor | Driving |
| 2. Command to motor phase 1 (EGR1) | Not operating |
| B. All of the following conditions are met | - |
| EGR2 output terminal voltage level | Low |
| Either of the following conditions is met | 3 or 4 |
| 3. Step motor | Driving |
| 4. Command to motor phase 2 (EGR2) | Not operating |
| C. All of the following conditions are met | - |
| EGR3 output terminal voltage level | Low |
| Either of the following conditions is met | 5 or 6 |
| 5. Step motor | Driving |
| 6. Command to motor phase 3 (EGR3) | Not operating |
| D. All of the following conditions are met | - |
| EGR4 output terminal voltage level | Low |
| Either of the following conditions is met | 7 or 8 |
| 7. Step motor | Driving |
| 8. Command to motor phase 4 (EGR4) | Not operating |