2003 LEXUS LS430 Factory Repair Manual

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Page 433 of 4500

LEXUS LS430 2003 Factory Repair Manual Standard: LUGGAGE ROOM J/B - REAR AIR CONDITIONING AMPLIFIER RESISTANCE Tester connectionConditionSpecified condition RHR (L14-18) - RHR (A46-16)AlwaysBelow 1 ohms RHR (L14-18) - Body groundAlways1

Page 434 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 175: Checking Harness And Connector (Luggage Room J/B - Rear Air Conditioning Amplifier)

Page 435 of 4500

LEXUS LS430 2003 Factory Repair Manual Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step REPLACE LUGGAGE ROOM J/B 4.INSPECT AIR CONDITIONING AMPLIFIER (RHI, RLO, RSLO) a. Rem

Page 436 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 176: Inspecting Air Conditioning Amplifier (RHI, RLO, RSLO) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: Go to STEP 5 OK: Go to STEP 7 5.INSPECT REAR BLOWER RESISTOR a. Remove the rear

Page 437 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 177: Inspecting Rear Blower Resistor Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. OK: Go to next step 6.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BLOWER RESISTOR) (SEE ELECTR

Page 438 of 4500

LEXUS LS430 2003 Factory Repair Manual A46-8 (RHI) - R30-2AlwaysBelow 1 ohms A46-8 (RHI) - Body groundAlways10 kohms or higher A46-8 (RHI) - R29-1 (+)AlwaysBelow 1 ohms A46-6 (GND) - R29-2 (GND)AlwaysBelow 1 ohms A46-6 (GND) - Body groundA

Page 439 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 178: Checking Harness And Connector (Air Conditioning Amplifier - Blower Resistor) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Page 440 of 4500

LEXUS LS430 2003 Factory Repair Manual OK: Go to next step 7.INSPECT REAR BLOWER MOTOR a. Remove the blower motor. b. Connect the positive (+) lead to terminal 1 of the blower motor connector and negative (-) lead to terminal 3. OK
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