DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT ENGINE SWITCH
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ENGINE SWITCH AND BODY GROUND)
ENTRY AND START SYSTEM (for Start Function) - Engine Switch Indicator Circuit
DESCRIPTION
Engine switch condition (power source mode) or system malfunctions can be checked by observing the status of the engine switch indicator light.
Engine Switch Indicator Light Condition| Power Source Mode/Condition | Indicator Light Condition |
Brake pedal released (for A/T)
Clutch pedal released (for M/T) |
Brake pedal depressed, shift lever in P or N (for A/T) |
Clutch pedal depressed (for M/T) |
| Off | Off | Illuminates (Green) | Illuminates (Green) |
| On (ACC, IG) | Illuminates (Amber) | Illuminates (Green) | Illuminates (Green) |
| Engine running | Off | Off | Off |
| Steering lock not unlocked | Flashes (Green) for 30 sec. | Flashes (Green) for 30 sec. | Flashes (Green) for 30 sec. |
| System malfunction | Flashes (Amber) for 15 sec. | Flashes (Amber) for 15 sec. | Flashes (Amber) for 15 sec. |
| Clutch start switch malfunction (for M/T) | Flashes (Green) for 15 sec. | Flashes (Green) for 15 sec. | Flashes (Green) for 15 sec. |
WIRING DIAGRAM
INSPECTION PROCEDURE
Disconnect the E18 engine switch connector.
Apply battery voltage between the terminals of the engine switch, and check the illumination condition of the engine switch indicator light.
If the positive (+) lead and the negative (-) lead are incorrectly connected, the engine switch indicator light will not illuminate.
If the voltage is too low, the indicator light will not illuminate.
- OK:
| Measurement Condition | Condition | Specified Condition |
| Battery terminal (+) → Terminal 11 (SWIL) - Battery terminal (-) → Terminal 5 (GND) | Battery voltage is applied to the terminals | Illuminates |
| Battery terminal (+) → Terminal 12 (INDS) - Battery terminal (-) → Terminal 5 (GND) |
| Battery terminal (+) → Terminal 13 (INDW) - Battery terminal (-) → Terminal 5 (GND) |
Result| Result | Proceed to |
| Illuminates | A |
| Does not illuminate (for 1GR-FE) | B |
| Does not illuminate (for 1UR-FE) | C |
| Does not illuminate (for 3UR-FE) | D |
| Does not illuminate (for 1VD-FTV) | E |
| 2.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ENGINE SWITCH AND BODY GROUND) |
Disconnect the E1 main body ECU connector.
Disconnect the E18 engine switch connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| E1-25 (SWIL) - E18-11 (SWIL) | Always | Below 1 Ω |
| E1-15 (INDS) - E18-12 (INDS) | Always | Below 1 Ω |
| E1-14 (INDW) - E18-13 (INDW) | Always | Below 1 Ω |
| E18-5 (GND) - Body ground | Always | Below 1 Ω |
| E1-25 (SWIL) or E18-11 (SWIL) - Body ground | Always | 10 kΩ or higher |
| E1-15 (INDS) or E18-12 (INDS) - Body ground | Always | 10 kΩ or higher |
| E1-14 (INDW) or E18-13 (INDW) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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