Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

The shift solenoid valve SL2 is turned on/off normally when the shift lever is in the D position:

GEAR SHIFT POSITIONS

ECM command gearshift	1st	2nd	3rd	4th	5th	6th
Shift solenoid valve SL2	ON	ON	ON	ON	OFF	OFF

INSPECT TRANSMISSION WIRE (SL2)

Disconnect the transmission wire connector from the transmission.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition 20°C (68°F)
10 (SL2+) - 2 (SL2-)	5.0 to 5.6 Ω

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

Standard resistance (Check for short)

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
10 (SL2+) - Body ground	10 kΩ or higher
2 (SL2-) - Body ground	↑

Fig 1: Identifying Terminals Of E47 Transmission Wire Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 3

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

Connect the transmission connector to the transmission.
Disconnect the connector from the ECM.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition 20°C (68°F)
E4-11 (SL2+) - E4-10 (SL2-)	5.0 to 5.6 Ω

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

Standard resistance (Check for short)

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
E4-11 (SL2+) - Body ground	10 kΩ or higher
E4-10 (SL2-) - Body ground	↑

Fig 2: Identifying Terminals Of E4 ECM Connector

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE ECM

INSPECT SHIFT SOLENOID SL2

Remove the shift solenoid valve SL2.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition 20°C (68°F)
1 - 2	5.0 to 5.6 Ω

Connect the positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve.
OK: The solenoid makes an operating sound.

Fig 3: Identifying Shift Solenoid Valve SL2

NG: REPLACE SHIFT SOLENOID SL2

OK: REPAIR OR REPLACE TRANSMISSION WIRE