wiring LEXUS LS430 2003 Factory Repair Manual

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

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WIRING DIAGRAM

Fig. 45: Wiring Diagram - Yaw Rate Sensor Communication Stop Mode
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INSPECTION PROCEDURE
1.CHECK CAN BUS LINE FOR DISCONNECTION (YAW RATE SENSOR SUB BUS LINE)

MODE DESCRIPTION
Fig. 48: Problem Symptom Diagnostic Chart

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WIRING DIAGRAM

Fig. 49: Wiring Diagram - Distance Control ECU Communication Stop Mode
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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

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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
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INSPECTION PROCEDURE
1.CHECK CAN BUS LINE FOR DISCONNECTION (TELEVISION CAMERA ECU SUB BUS
LINE)

MODE DESCRIPTION
Fig. 56: Problem Symptom Diagnostic Chart

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WIRING DIAGRAM

Fig. 57: Wiring Diagram - ECM Communication Stop Mode
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INSPECTION PROCEDURE
1.CHECK CAN BUS LINE FOR DISCONNECTION (ECM SUB BUS LINE)
Fig. 58: Disconnecting ECM Connector (E3)

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a. Turn the ignition switch to the LOCK position.
b. Disconnect the ECM connector (E3).
c. Measure the resistance according to the value (s) in the table below.
Standard:
ECM CONNECTOR TERMINALS RESISTANCE
NG: REPAIR OR REPLACE ECM SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L)
Tester connectionConditionSpecified value
E3-25 (CANH) - E3-24 (CANL)Ignition Switch OFF54 to 69 ohms

OK: REPLACE ECM (SEE REPLACEMENT)
MODE DESCRIPTION
Fig. 60: Problem Symptom Diagnostic Chart

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WIRING DIAGRAM

Fig. 61: Wiring Diagram - Gateway ECU Communication Stop Mode
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INSPECTION PROCEDURE
1.CHECK CAN BUS LINE FOR DISCONNECTION (GATEWAY ECU SUB BUS LINE)