ground clearance LEXUS LS430 2003 Factory User Guide

NG: REPLACE ULTRASONIC SENSOR NO.2 (SEE REPLACEMENT )
OK: Go To Next Step.
2.CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSY -
ULTRASONIC SENSOR NO. 2)
a. Disconnect the C17 connector from the clearance warning ECU assy.
b. Disconnect the U10 connector from ultrasonic sensor No.2.
c. Measure the resistance according to the value (s) in the table below.
TESTER CONNECTION SPECIFIED CONDITION
Tester connection (Symbols)ConditionSpecified value
C17-23 (RBR) - U10-2AlwaysBelow 1 ohms
C17-20 (RGND) - U10-1AlwaysBelow 1 ohms
C17-23 (RBR) - Body groundAlways10 kohms or higher
C17-20 (RGND) - Body groundAlways10 kohms or higher

NG: REPLACE ULTRASONIC SENSOR NO.1 (SEE REPLACEMENT
OK: Go To Next Step.
2.CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSY -
ULTRASONIC SENSOR NO. 1)
a. Disconnect the C17 connector from the clearance warning ECU assy.
b. Disconnect the U11 connector from ultrasonic sensor No.1.
c. Measure the resistance according to the value (s) in the table below.
TESTER CONNECTION SPECIFIED CONDITION
Tester connection (Symbols)ConditionSpecified value
C17-22 (RR) - U11-2AlwaysBelow 1 ohms
C17-20 (RGND) - U11-1AlwaysBelow 1 ohms
C17-22 (RR) - Body groundAlways10 kohms or higher
C17-20 (RGND) - Body groundAlways10 kohms or higher

Standard:
TESTER CONNECTION SPECIFIED CONDITION
Fig. 61: Identifying C17 Connector Terminals (1 Of 2)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (CLEARANCE WARNING ECU
ASSY - BATTERY)
OK: Go To Next Step.
3.CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSY - BODY
GROUND)
a. Disconnect the C17 connector from the clearance warning ECU assy.
b. Measure the resistance according to the value (s) in the table below.
Standard:
TESTER CONNECTION SPECIFIED CONDITION
Tester connection (Symbols)ConditionSpecified condition
C17-5 (IG)- Body groundIG switch ON10 to 14 V

Fig. 62: Identifying C17 Connector Terminals (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (CLEARANCE WARNING ECU
ASSY - BODY GROUND)
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS
TABLE
CIRCUIT DESCRIPTION
Turning this switch on activates the clearance sonar system.
WIRING DIAGRAM
Tester connection (Symbols)ConditionSpecified condition
C17-7 (MGND) - Body groundAlwaysBelow 1 ohms

Fig. 65: Identifying CLSW Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
OK: REPLACE CLEARANCE WARNING ECU ASSY (SEE REPLACEMENT
)
NG: Go To Next Step.
3.CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSY - BODY
GROUND)
a. Disconnect the C17 connector from the clearance warning ECU assy.
b. Measure the resistance according to the value (s) in the table below.
Standard:
TESTER CONNECTION SPECIFIED CONDITION
Tester connectionConditionSpecified condition
C17-7 (MGND) - Body groundAlwaysBelow 1 ohms

Fig. 66: Identifying C17 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (CLEARANCE WARNING ECU
ASSY - BODY GROUND)
OK: Go To Next Step.
4.INSPECT OUTER MIRROR SWITCH ASSY
a. Disconnect the O5 connector from the clearance sonar main switch.
b. Measure the resistance according to the value (s) in the table below.
Standard:
TESTER CONNECTION SPECIFIED CONDITION
Tester connection (Symbols)ConditionSpecified condition
O5-3 - O5-4Clearance sonar main switch off10 kohms or higher
O5-3 - O5-4Clearance sonar main switch onBelow 1 ohms

Fig. 7: Measuring Vehicle Height
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Except air suspension:
EXCEPT AIR SUSPENSION
Air suspension:
AIR SUSPENSION
Measuring points:
A.Ground clearance of lower suspension arm No. 1 bushing set bolt center
B.Ground clearance of front wheel center
C.Ground clearance of rear suspension arm No. 2 set bolt center
D.Ground clearance of rear wheel center
Tire SizeFront B-ARear D-C
P225/55R17105 mm (4.13 in.)91 mm (3.58 in.)
245/45R18104 mm (4.09 in.)89 mm (3.50 in.)
Front B-ARear D-C
115 mm (4.53 in.)109 mm (4.29 in.)