2003 LEXUS LS430 Factory Repair Manual

Page 585 of 4500

LEXUS LS430 2003  Factory Repair Manual RESULT DESCRIPTION 
HINT: 
When a malfunction is found in the rear solenoid valve, replace the height control valve sub-assy No. 2. 
B: REPLACE HEIGHT CONTROL VALVE SUB-ASSY NO. 1 (SEE REPLACEMENT
 )

Page 586 of 4500

LEXUS LS430 2003  Factory Repair Manual c. Check the operating sound of the exhaust solenoid valve.  
OK:  
It should make an operating sound (click).  
HINT: 
When a malfunction is found in the exhaust solenoid valve, replace the height co

Page 587 of 4500

LEXUS LS430 2003  Factory Repair Manual 10.INSPECT FOR CLOGGED AIR TUBE 
a. Check the air tube visually for a clog or damage (see ON
-VEHICLE INSPECTION ).  
OK:  
Air tube is not clogged or damaged.  
NG: REPAIR OR REPLACE AIR TUBE  
OK: R

Page 588 of 4500

LEXUS LS430 2003  Factory Repair Manual NG: REPAIR OR REPLACE AIR TUBE
OK:Go to next step  
3.INSPECT HEIGHT CONTROL SOLENOID VALVE 
a. Connect the hand-held tester to the DLC3.  
b. Turn the ignition switch to the ON position and turn the

Page 589 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 105: Identifying Height Control Solenoid Valve Front RH Connector Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
RESULT DESCRIPTION 
HINT: 
When a malfunction is found in the front sole

Page 590 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 106: Identifying Height Control Solenoid Valve Front LH Connector Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
RESULT DESCRIPTION 
HINT: 
When a malfunction is found in the front sole

Page 591 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 107: Identifying Height Control Solenoid Valve Rear RH Connector Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
RESULT DESCRIPTION 
HINT: 
When a malfunction is found in the rear soleno

Page 592 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 108: Identifying Height Control Solenoid Valve Rear LH Connector Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
RESULT DESCRIPTION 
HINT: 
When a malfunction is found in the rear soleno