Inspection Procedure: Procedure

WARNING: This page is about a different car, the 2010 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT TRANSMISSION WIRE (S2)

Disconnect the transmission wire connector from the transmission.

Fig 1: Inspecting Transmission Wire (S2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value(s) in the table below.

Standard resistance

Tester Connection	Specified Condition 20°C (68°F)
15 - Body ground	11 to 15 Ω

NG → See step 3

OK: Go to next step

CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

Connect the transmission connector to the transmission.

Fig 2: Disconnecting E4 Connector From ECM
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Disconnect the connector from the ECM.

Measure the resistance according to the value(s) in the table below.

Standard resistance

Tester Connection	Specified Condition 20°C (68°F)
E4-18 (S2) - Body ground	11 to 15 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK → REPLACE ECM

INSPECT SHIFT SOLENOID VALVE S2

Remove the shift solenoid valve S2.

Fig 3: Inspecting Shift Solenoid Valve S2
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value(s) in the table below.

Standard resistance

Tester Connection	Specified Condition 20°C (68°F)
Solenoid Connector (S2) - Solenoid Body (S2)	11 to 15 Ω

Connect positive (+) lead to the terminal of solenoid connector, negative (-) lead to the solenoid body.
OK

The solenoid makes an operating sound.

NG → REPLACE SHIFT SOLENOID VALVE S2

OK → REPAIR OR REPLACE TRANSMISSION WIRE