DESCRIPTION
Power source voltage is supplied to the air conditioning amplifier assembly when the engine switch is turned on (IG). This power is used for operating the air conditioning amplifier assembly, servo motors, etc.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
1. | CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - IG POWER SOURCE) |
(a) Disconnect the J43 air conditioning amplifier assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
J43-2 (IG+) - Body ground | Engine switch off | Below 1 V |
J43-2 (IG+) - Body ground | Engine switch on (IG) | 11 to 14 V |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. | CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J43-4 (GND) - Body ground | Always | Below 1 Ω |
OK | ![]() | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Back Door Drive Unit: Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. REMOVE BACK WINDOW UPPER PANEL TRIM (w/o Rear No. 2 Seat) Click here 2. REMOVE BACK WINDOW UPPER PANEL TRIM (w/ Rear No. 2 Seat) Click here ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Audio And Visual System (for 12.3 Inch Display): Sending Malfunction (Navigation to APGS) (U0073,U0100,U0129,U0140,U0155,U0164,U023B,U0265,U1110)
DESCRIPTION These DTCs are stored when a malfunction occurs in the CAN communication circuit. DTC No. Detection Item DTC Detection Condition Trouble Area U0073 Sending Malfunction (Navigation to APGS) CAN bus connection error CAN communication system U0100 Engine ECU Communi ...