Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter
DESCRIPTION
The No. 1 stereo jack adapter assembly sends the sound signal from an external device to the radio receiver assembly via this circuit.
WIRING DIAGRAM
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY) |
(a) Disconnect the J148 radio receiver assembly connector.
(b) Disconnect the J152 No. 1 stereo jack adapter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J148-14 (ADPG) - J152-2 (ADPG) | Always | Below 1 Ω |
| J148-10 (AGND) - J152-7 (AGND) | Always | Below 1 Ω |
| J148-12 (VAR+) - J152-6 (VAR+) | Always | Below 1 Ω |
| J148-11 (VAL+) - J152-1 (VAL+) | Always | Below 1 Ω |
| J148-13 (VA-) - J152-5 (VA-) | Always | Below 1 Ω |
| J148-14 (ADPG) or J152-2 (ADPG) - Body ground | Always | 10 kΩ or higher |
| J148-10 (AGND) or J152-7 (AGND) - Body ground | Always | 10 kΩ or higher |
| J148-12 (VAR+) or J152-6 (VAR+) - Body ground | Always | 10 kΩ or higher |
| J148-11 (VAL+) or J152-1 (VAL+) - Body ground | Always | 10 kΩ or higher |
| J148-13 (VA-) or J152-5 (VA-) - Body ground | Always | 10 kΩ or higher |
| OK |  | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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