2003 LEXUS LS430 Diagram AC

Fig. 37: Wiring Diagram - Skid Control ECU Communication Stop Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECTION PROCEDURE
1.CHECK CAN BUS LINE FOR DISCONNECTION (SKID CONTROL ECU SUB BUS LINE)

MODE DESCRIPTION
Fig. 40: Problem Symptom Diagnostic Chart

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
WIRING DIAGRAM
Fig. 41: Wiring Diagram
- Steering Sensor Communication Stop Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR
OK: REPLACE STEERING SENSOR (SEE REPLACEMENT )
MODE DESCRIPTION
Fig. 44: Problem Symptom Diagnostic Chart

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
WIRING DIAGRAM

Fig. 45: Wiring Diagram - Yaw Rate Sensor Communication Stop Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECTION PROCEDURE
1.CHECK CAN BUS LINE FOR DISCONNECTION (YAW RATE SENSOR SUB BUS LINE)

MODE DESCRIPTION
Fig. 48: Problem Symptom Diagnostic Chart

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
WIRING DIAGRAM

Fig. 49: Wiring Diagram - Distance Control ECU Communication Stop Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECTION PROCEDURE
1.CHECK CAN BUS LINE FOR DISCONNECTION (DISTANCE CONTROL ECU SUB BUS
LINE)

DISTANCE CONTROL ECU CONNECTOR TERMINALS RESISTANCE AND VOLTAGE
NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR
OK: REPLACE DISTANCE CONTROL ECU ASSY (SEE REPLACEMENT
)
MODE DESCRIPTION
Fig. 52: Problem Symptom Diagnostic Chart

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
WIRING DIAGRAM
Tester ConnectionConditionSpecified Condition
D2-12 (GND) - Body groundAlwaysBelow 1 ohms
D2-1 (+B) - Body groundIgnition Switch ON10 to 14 V

Fig. 53: Wiring Diagram - Television Camera ECU Communication Stop Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECTION PROCEDURE
1.CHECK CAN BUS LINE FOR DISCONNECTION (TELEVISION CAMERA ECU SUB BUS
LINE)