1. Remove the driver-side front scuff plate. (See FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
2. Remove the driver-side front side trim. (See FRONT SIDE TRIM REMOVAL/INSTALLATION.)
3. Remove the upper panel. (See UPPER PANEL REMOVAL/INSTALLATION.)
4. Remove the shift lever knob (MTX vehicles). (See MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [C66M-R].)
5. Remove the selector lever knob (ATX vehicles). (See AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION.)
6. Remove the shift panel. (See SHIFT PANEL REMOVAL/INSTALLATION.)
7. Remove the rear console. (See REAR CONSOLE REMOVAL/INSTALLATION.)
8. Remove the front console box. (See FRONT CONSOLE BOX REMOVAL/INSTALLATION.)
9. Remove the side wall. (See SIDE WALL REMOVAL/INSTALLATION.)
10. Remove the front console. (See FRONT CONSOLE REMOVAL/INSTALLATION.)
11. Disconnect the hood release lever from the lower panel. (See HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION.)
12. Remove the fuel-filler lid opener lever. (See FUEL-FILLER LID OPENER AND LEVER REMOVAL/INSTALLATION.)
13. Remove the lower panel. (See LOWER PANEL REMOVAL/INSTALLATION.)
14. Remove the driver-side front heat duct. (See FRONT HEAT DUCT REMOVAL/INSTALLATION.)
15. Attach the tester lead to the underside of the EPS CM connector and inspect the voltage according to the terminal voltage table (reference).
| Terminal | Signal name | Connected to | Measured item | Measured terminal (measurement condition) | Voltage (V) | Inspection item(s) |
| 1A | Ground | Ground point | Voltage | Under any condition | 1 or less |
|
| 1B | Battery power supply | Battery | Voltage | Under any condition | B+ |
|
| 2A | CAN_H | — | Perform DTC inspection | — |
||
| 2B | — | — | — | — | — | — |
| 2C | — | — | — | — | — | — |
| 2D | CAN_L | — | Perform DTC inspection | — |
||
| 2E | — | — | — | — | — | — |
| 2F | — | — | — | — | — | — |
| 2G | — | — | — | — | — | — |
| 2H | Ignition power supply | IG1 relay | Voltage | Ignition ON (engine off or on) | B+ |
|
| Ignition OFF (LOCK) | 1 or less |
|||||