2003 LEXUS LS430 air condition

SHIFT SOLENOID VALVE (S1) - RESISTANCE TABLE
c. Connect positive (+) lead to the terminal of solenoid connector, negative (-) lead to the solenoid
body.
OK:
The solenoid makes an operating noise.
Fig. 137: Inspecting Shift Solenoid Valve (S1)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPLACE SHIFT SOLENOID VALVE (S1)
OK: REPAIR OR REPLACE TRANSMISSION WIRE (See step 5 on REPLACEMENT
)
DTC P0976, P0977: SHIFT SOLENOID "B" CONTROL CIRCUIT LOW/HIGH (SHIFT SOLENOID
VALVE S2)
Tester ConnectionSpecified Condition 20°C (68°F)
Solenoid Connector (S1) - Solenoid Body (S1)11 to 15ohms

b. Disconnect the connector from the ECM.
c. Measure the resistance according to the value(s) in the table below.
Fig. 141: Disconnecting Connector From ECM

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Standard:
TRANSMISSION WIRE - ECM - RESISTANCE TABLE
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See ELECTRONIC CIRCUIT
INSPECTION PROCEDURE )
OK: Go to next step
OK: REPLACE ECM (See REPLACEMENT
)
3.INSPECT SHIFT SOLENOID VALVE (S2)
a. Remove the shift solenoid valve S2.
Tester ConnectionSpecified Condition 20°C (68°F)
E6 - 18 (S2) - Body ground11 to 15ohms

b. Measure the resistance according to the value(s) in the table below.
Standard:
SHIFT SOLENOID VALVE (S2) - RESISTANCE TABLE
c. Connect positive (+) lead to the terminal of solenoid connector, negative (-) lead to the solenoid
body.
OK:
The solenoid makes an operating noise.
Fig. 142: Inspecting Shift Solenoid Valve (S2)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPLACE SHIFT SOLENOID VALVE (S2)
OK: REPAIR OR REPLACE TRANSMISSION WIRE (See step 5 on REPLACEMENT
)
Tester ConnectionSpecified Condition 20°C (68°F)
Solenoid Connector (S2) - Solenoid Body (S2)11 to 15ohms

Fig. 146: Disconnecting Connector From ECM
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Standard:
TRANSMISSION WIRE - ECM - RESISTANCE TABLE
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See ELECTRONIC CIRCUIT
INSPECTION PROCEDURE )
OK: REPLACE ECM (See REPLACEMENT
)
3.INSPECT SHIFT SOLENOID VALVE (S3)
a. Remove the shift solenoid valve S3.
b. Measure the resistance according to the value(s) in the table below.
Standard:
SHIFT SOLENOID VALVE (S3) - RESISTANCE TABLE
Tester ConnectionSpecified Condition 20°C (68°F)
E6 - 17 (S3) - Body ground11 to 15ohms
Tester ConnectionSpecified Condition 20°C (68°F)

Fig. 151: Disconnecting Connector From ECM
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Standard:
TRANSMISSION WIRE - ECM - RESISTANCE TABLE
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See ELECTRONIC CIRCUIT
INSPECTION PROCEDURE )
OK: REPLACE ECM (See REPLACEMENT
)
3.INSPECT SHIFT SOLENOID VALVE (S4)
a. Remove the shift solenoid valve S4.
b. Measure the resistance according to the value(s) in the table below.
Standard:
SHIFT SOLENOID VALVE (S4) - RESISTANCE TABLE
Tester ConnectionSpecified Condition 20°C (68°F)
E6 - 16 (S4) - Body ground11 to 15ohms
Tester ConnectionSpecified Condition 20°C (68°F)

Fig. 156: Disconnecting Connector From ECM
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Standard:
TRANSMISSION WIRE - ECM - RESISTANCE TABLE
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See ELECTRONIC CIRCUIT
INSPECTION PROCEDURE )
OK: REPLACE ECM (See REPLACEMENT
)
3.INSPECT SHIFT SOLENOID VALVE (SR)
a. Remove the shift solenoid valve SR.
b. Measure the resistance according to the value(s) in the table below.
Standard:
SHIFT SOLENOID VALVE (SR) - RESISTANCE TABLE
Tester ConnectionSpecified Condition 20°C (68°F)
E6 - 2 (SR) - Body ground11 to 15

c. Connect positive (+) lead to the terminal of solenoid connector, negative (-) lead to the solenoid
body.
OK:
The solenoid makes an operating noise.
Fig. 157: Inspecting Shift Solenoid Valve (SR)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPLACE SHIFT SOLENOID VALVE (SR)
OK: REPAIR OR REPLACE TRANSMISSION WIRE (See step 5 on REPLACEMENT
)
DTC P2714: PRESSURE CONTROL SOLENOID "D" PERFORMANCE (SHIFT SOLENOID VALVE
SLT)
SYSTEM DESCRIPTION
Tester ConnectionSpecified Condition 20°C (68°F)
Solenoid Connector (SR) - Solenoid Body (SR)11 to 15ohms

Fig. 171: Tester Connection Reference Chart
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See ELECTRONIC CIRCUIT
INSPECTION PROCEDURE )
OK: REPLACE ECM (See REPLACEMENT
)
3.INSPECT SHIFT SOLENOID VALVE (SLT)
a. Remove the shift solenoid valve (SLT).
b. Measure the resistance according to the value(s) in the table below.
Standard:
SHIFT SOLENOID VALVE (SLT) - RESISTANCE TABLE
c. 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 noise.
Tester ConnectionSpecified Condition 20°C (68°F)
1 - 25.0 to 5.6 ohms