2003 LEXUS LS430 Factory Repair Manual

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Page 2497 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 66: Signal Waveform Graph Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. OK: REPLACE LASER SENSOR (SEE REPLACEMENT ) CIRCUIT DESCRIPTION The laser sensor emits laser beams towards an object i

Page 2498 of 4500

LEXUS LS430 2003 Factory Repair Manual The laser sensor monitors the laser emission and reception by itself. This DTC is detected when it cannot monitor. When rain drops or snowflakes strike the laser sensor face, the distance between th

Page 2499 of 4500

LEXUS LS430 2003 Factory Repair Manual HINT: If the optical axis deviates to the upper/lower side +/-2° or more and/or the right/left side +/-4° or more, this DTC is detected. INSPECTION PROCEDURE 1.ADJUST LASER SENSOR (SEE ADJUSTMEN

Page 2500 of 4500

LEXUS LS430 2003 Factory Repair Manual This circuit detects the yaw rate of the vehicle and transmits its signal to the skid control ECU and distance control ECU. Fig. 68: DTC U0123 Problem Symptom Diagnostic Chart Courtesy of TOYOTA M

Page 2501 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 69: Wiring Diagram - Distance Control ECU Power Source Circuit Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. INSPECTION PROCEDURE 1.INSPECT CRUISE CONTROL ECU ASSY (DISTANCE CONTROL ECU) a. Di

Page 2502 of 4500

LEXUS LS430 2003 Factory Repair Manual c. Measure the resistance according to the value(s) in the table below. Standard: CRUISE CONTROL ECU TERMINALS RESISTANCE SPECIFICATION NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR Fig. 70: D

Page 2503 of 4500

LEXUS LS430 2003 Factory Repair Manual CIRCUIT DESCRIPTION This circuit provides power to operate the laser sensor. The laser sensor emits laser beams towards an object in front and measures the distance and direction of the object by r

Page 2504 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 71: Wiring Diagram - Laser Sensor Power Source Circuit Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. INSPECTION PROCEDURE 1.INSPECT LASER SENSOR a. Disconnect the laser sensor connector. b.
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