2003 LEXUS LS430 Identifying ac

Fig. 59: Identifying Absorber Control Actuator Rear LH Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPLACE ABSORBER CONTROL ACTUATOR
OK:Go to next step
3.CHECK HARNESS AND CONNECTOR (ABSORBER CONTROL ACTUATOR - SUSPENSION
CONTROL ECU) (SEE ELECTRONIC CIRCUIT INSPECTION PROCEDURE
)
a. Disconnect the air suspension ECU A21 or A22 connector.
b. Measure the resistance according to the value (s) in the table below.
TESTER CONNECTION STANDARD SPECIFIED CONDITION STANDARD (FRONT RH)
Tester ConnectionSpecified Condition
A21-1 (FAR+) - S6-2 (FAR+)Below 1 ohms
A21-2 (FAR-) - S6-5 (FAR-)Below 1 ohms
A21-3 (FBR+) - S6-1 (FBR+)Below 1 ohms
A21-4 (FBR-) - S6-4 (FBR-)Below 1 ohms
A21-1 (FAR+) - Body ground10 Kohms or higher

Fig. 60: Identifying Suspension Control ECU Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
A21-2 (FAR-) - Body ground10 Kohms or higher
A21-3 (FBR+) - Body ground10 Kohms or higher
A21-4 (FBR-) - Body ground10 Kohms or higher
S6-3 (GND) - Body groundBelow 1 ohms

Fig. 61: Identifying Absorber Control Actuator Front Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
TESTER CONNECTION STANDARD SPECIFIED CONDITION STANDARD (FRONT LH)
Tester ConnectionSpecified Condition
A21-5 (FAL+) - S5-2 (FAL+)Below 1 ohms
A21-6 (FBL+) - S5-1 (FBL+)Below 1 ohms
A21-14 (FAL-) - S5-5 (FAL-)Below 1 ohms
A21-16 (FBL-) - S5-4 (FBL-)Below 1 ohms
A21-5 (FAL+) - Body ground10 Kohms or higher
A21-6 (FBL+) - Body ground10 Kohms or higher
A21-14 (FAL-) - Body ground10 Kohms or higher
A21-16 (FBL-) - Body ground10 Kohms or higher
S5-3 (GND) - Body groundBelow 1 ohms

Fig. 62: Identifying Suspension Control ECU Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 63: Identifying Absorber Control Actuator Front Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
TESTER CONNECTION STANDARD SPECIFIED CONDITION STANDARD (REAR RH)
Tester ConnectionSpecified Condition
A22-2 (RAR+) - S33-2 (RAR+)Below 1 ohms
A22-3 (RAR-) - S33-5 (RAR-)Below 1 ohms
A22-4 (RBR+) - S33-1 (RBR+)Below 1 ohms
A22-5 (RBR-) - S33-4 (RBR-)Below 1 ohms
A22-2 (RAR+) - Body ground10 Kohms or higher
A22-3 (RAR-) - Body ground10 Kohms or higher
A22-4 (RBR+) - Body ground10 Kohms or higher
A22-5 (RBR-) - Body ground10 Kohms or higher
S33-3 (ERR) - Body groundBelow 1 ohms

Fig. 64: Identifying Suspension Control ECU Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 65: Identifying Absorber Control Actuator Rear RH Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
TESTER CONNECTION STANDARD SPECIFIED CONDITION STANDARD (REAR LH)
Tester ConnectionSpecified Condition
A22-6 (RAL+) - S32-2 (RAL+)Below 1 ohms
A22-7 (RAL-) S32-5 (RAL-)Below 1 ohms
A22-8 (RBL+) - S32-1 (RBL+)Below 1 ohms
A22-9 (RBL-) - S32-4 (RBL-)Below 1 ohms
A22-6 (RAL+) - Body ground10 Kohms or higher
A22-7 (RAL-) - Body ground10 Kohms or higher
A22-8 (RBL+) - Body ground10 Kohms or higher
A22-9 (RBL-) - Body ground10 Kohms or higher
S32-3 (ERL) - Body groundBelow 1 ohms

Fig. 66: Identifying Suspension Control ECU Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.