Inspection Procedure
- INSPECT ENGINE SWITCH
- Remove the engine switch (see REMOVAL ).
- Apply battery voltage between the terminals of the engine switch, and check the illumination condition of the engine switch indicator light.NOTE:
- 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
TESTER CONDITION CHARTTester Connection Condition Specified Condition Battery terminal (+) → Terminal 11 (SWIL) - Battery terminal (-) → Terminal 5 (GND) Always Illuminates Battery terminal (+) → Terminal 12 (INDS) - Battery terminal (-) → Terminal 5 (GND) Always Illuminates Battery terminal (+) → Terminal 13 (INDW) - Battery terminal (-) → Terminal 5 (GND) Always Illuminates NG: REPLACE ENGINE SWITCH (See REMOVAL )
OK: Go to next step.
- CHECK HARNESS AND CONNECTOR (ENGINE SWITCH - MAIN BODY ECU AND BODY GROUND)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the L36 engine switch connector.
- Disconnect the L13 main body ECU connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
RESISTANCE REFERENCETester Connection Condition Specified Condition L36-11 (SWIL) - L13-25 (SWIL) Always Below 1 Ω L36-12 (INDS) - L13-15 (INDS) Always Below 1 Ω L36-13 (INDW) - L13-14 (INDW) Always Below 1 Ω L36-5 (GND) - Body ground Always Below 1 Ω L36-11 (SWIL) or L13-25 (SWIL) - Body ground Always 10 kΩ or higher L36-12 (INDS) or L13-15 (INDS) - Body ground Always 10 kΩ or higher L36-13 (INDW) or L13-14 (INDW) - Body ground Always 10 kΩ or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPLACE MAIN BODY ECU