2003 LEXUS LS430 sensor

Fig. 30: Identifying Height Control Sensor Front Connector Terminals RH
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
HEIGHT CONTROL SENSOR FRONT LH: (C1712)
a. Measure the resistance according to the value (s) in the table below.
TESTER CONNECTION STANDARD SPECIFIED CONDITION
RESULT DESCRIPTION
Tester ConnectionSpecified Condition
1 (SHB) - 4 (SHG)3.0 to 5.6 Kohms
1 (SHB) - 2 (SHFL)0.4 to 3.9 Kohms
OKA
NGC

Fig. 31: Identifying Height Control Sensor Front Connector Terminals LH
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
HEIGHT CONTROL SENSOR REAR RH: (C1713)
a. Measure the resistance according to the value (s) in the table below.
TESTER CONNECTION STANDARD SPECIFIED CONDITION
RESULT DESCRIPTION
Tester ConnectionSpecified Condition
1 (SHB) - 3 (SHG)3.0 to 5.6 Kohms
2 (SHRR) - 1 (SHB)0.4 to 3.9 Kohms
OKA
NGD

Fig. 32: Identifying Height Control Sensor Rear RH Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
HEIGHT CONTROL SENSOR REAR LH: (C1714)
a. Measure the resistance according to the value (s) in the table below.
TESTER CONNECTION STANDARD SPECIFIED CONDITION
RESULT DESCRIPTION
Tester ConnectionSpecified Condition
1 (SHG) - 3 (SHB)3.0 to 5.6 Kohms
2 (SHRL) - 3 (SHB)0.4 to 3.9 Kohms
OKA
NGE

Fig. 33: Identifying Height Control Sensor Rear LH Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
B: REPLACE HEIGHT CONTROL SENSOR SUB-ASSY FRONT RH (SEE REPLACEMENT
)
C: REPLACE HEIGHT CONTROL SENSOR SUB-ASSY FRONT LH (SEE REPLACEMENT
)
D: REPLACE HEIGHT CONTROL SENSOR SUB-ASSY REAR RH (SEE REPLACEMENT
)
E: REPLACE HEIGHT CONTROL SENSOR SUB-ASSY REAR LH (SEE REPLACEMENT
)
A: REPLACE SUSPENSION CONTROL ECU (SEE REPLACEMENT
)
4.CHECK HARNESS AND CONNECTOR (SUSPENSION CONTROL ECU - HEIGHT
CONTROL SENSOR SUB-ASSY) (SEE ELECTRONIC CIRCUIT INSPECTION PROCEDURE
)
a. Disconnect the suspension control ECU A20 or A22 connector.
b. Measure the resistance according to the value (s) in the table below.

Fig. 35: Identifying Front Height Control Sensor Sub-Assy Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
TESTER CONNECTION STANDARD SPECIFIED CONDITION STANDARD (REAR RH)
Tester ConnectionSpecified Condition
A22-25 (SGR2) - H31-3 (SHG)Below 1 ohms
A22-26 (SBR2) - H31-1 (SHB)Below 1 ohms
A22-25 (SGR2) - Body ground10 Kohms or higher
A22-26 (SBR2) - Body ground10 Kohms or higher

Fig. 36: Identifying Height Control Sensor Sub-Assy Rear RH Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
TESTER CONNECTION STANDARD SPECIFIED CONDITION STANDARD (REAR LH)
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
Tester ConnectionSpecified Condition
A22-23 (SGL2) - H30-1 (SHG)Below 1 ohms
A22-24 (SBL2) - H30-3 (SHB)Below 1 ohms
A22-23 (SGL2) - Body ground10 Kohms or higher
A22-24 (SBL2) - Body ground10 Kohms or higher

Fig. 37: Identifying Height Control Sensor Sub-Assy Rear LH Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
OK:Go to next step
5.CHECK HARNESS AND CONNECTOR (SUSPENSION CONTROL ECU - HEIGHT
CONTROL SENSOR SUB-ASSY) (SEE ELECTRONIC CIRCUIT INSPECTION PROCEDURE
)
a. Disconnect the suspension control ECU A21 or A22 connector.
b. Measure the resistance according to the value (s) in the table below.

Fig. 38: Identifying Suspension Control ECU A21 Or A22 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
HEIGHT CONTROL SENSOR FRONT RH: (C1711)
TESTER CONNECTION STANDARD SPECIFIED CONDITION
Tester ConnectionSpecified Condition
A21-20 (SHFR) - H14-2 (SHFR)Below 1 ohms
A21-20 (SHFR) - Body ground10 Kohms or higher