Engine Switch: Inspection

WARNING: This page is about a different car, the 2006 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT ENGINE SWITCH

Measure the resistance according to the value(s) in CONNECTOR TERMINALS RESISTANCE SPECIFICATION TABLE .

Fig 1: Identifying Engine Switch Connector (1 Of 2)

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Standard resistance

ENGINE SWITCH (RESISTANCE) (1 OF 2)

Tester Connection	Switch Condition	Specified Condition
7 (SS1) - 5 (GND)	Pushed	Below 1 ohms
2 (SS2) - 5 (GND)	Pushed	Below 1 ohms
7 (SS1) - 5 (GND)	Not pushed	10 k ohms or higher
2 (SS2) - 5 (GND)	Not pushed	10 k ohms or higher

If the result is not as specified, replace the engine switch.

Apply battery voltage between the terminals of the switch, and check the illumination condition of the switch.

Standard resistance

Fig 2: Identifying Engine Switch Connector (2 Of 2)

ENGINE SWITCH (2 OF 2)

Measurement Condition	Specified Condition
Battery positive (+) --> Terminal 11 (SWIL) Battery negative (-) --> Terminal 4 (COM) or 5 (GND)	Illuminates
Battery positive (+) --> Terminal 12 (INDS) Battery negative (-) -->Terminal 4 (COM) or 5 (GND)	Illuminates
Battery positive (+) --> Terminal 13 (INDW) Battery negative (-) -->Terminal 4 (COM) or 5 (GND)	Illuminates

If the result is not as specified, replace the engine switch.