General tool
| Tool name | Remarks |
|---|---|
| Circuit tester | Used for measuring resistance, voltage and current. |
| Union nut wrench (19 mm) {0.748 in} | Used for removing and installing engine water temperature sensor. |
| Deep socket wrench (19 mm) {0.748 in} | Used for removing and installing engine oil temperature sensor. |
| DST-i | Used with the Subaru Select Monitor 4. |