2003 LEXUS LS430 Factory Repair Manual

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Page 305 of 4500

LEXUS LS430 2003 Factory Repair Manual NG: REPLACE A/C PRESSURE SENSOR OK: Go to next step 4.CHECK HARNESS AND CONNECTOR (A/C PRESSURE SENSOR - AIR CONDITIONING AMPLIFIER) (SEE ELECTRONIC CIRCUIT INSPECTION PROCEDURE ) a. Measure the

Page 306 of 4500

LEXUS LS430 2003 Factory Repair Manual

Page 307 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 81: Checking Harness And Connector (A/C Pressure Sensor -Air Conditioning Amplifier) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE AIR CON

Page 308 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 82: Photodiode Resistance/Solar Radiation Strength Graph Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. DTC DETECTION ITEM TROUBLE AREA HINT: If DTC B1244 is output at the same time, troubleshoo

Page 309 of 4500

LEXUS LS430 2003 Factory Repair Manual a. Connect the hand-held tester to the DLC3. b. Turn the ignition switch to the ON position and push the hand-held tester main switch on. c. Select the item below in the DATA LIST, and read the di

Page 310 of 4500

LEXUS LS430 2003 Factory Repair Manual Use an incandescent lamp for inspection. Bring it within 30 cm (11.8 in.) of the A/C solar sensor. Result: AIR CONDITIONING AMPLIFIER (TSDR) TEST RESULT Fig. 84: Inspecting Air Conditioning Ampli

Page 311 of 4500

LEXUS LS430 2003 Factory Repair Manual b. Apply battery voltage between terminals A28-6 (CLTB) and A28-3 (CLTE) of the A/C solar sensor. c. Measure the voltage according to the value (s) in the table below. Standard: A/C SOLAR SENSO

Page 312 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 85: Inspecting A/C Solar Sensor Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: REPLACE A/C SOLAR SENSOR OK: Go to next step 4.CHECK HARNESS AND CONNECTOR (A/C SOLAR SENSOR - AIR CONDITONI
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