Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual: Stereo Jack Adapter Light does not Illuminate

DESCRIPTION

Power is supplied to the No. 1 stereo jack adapter assembly illumination from the radio receiver assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

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PROCEDURE

(a) Disconnect the J170 and J152 No. 1 stereo jack adapter assembly connectors.

(b) Measure the voltage according to the value(s) in the table below. Standard Voltage: Tester Connection Condition Specified Condition J170-1 (UPI) - Body ground Engine switch on (ACC) 5 V J152-8 (ACC) - Body ground Engine switch on (ACC) 11 to 14 V

*a Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly)

OK

REPLACE NO. 1 STEREO JACK ADAPTER ASSEMBLY

NG

(a) Disconnect the J169 radio receiver assembly connector.

(b) Disconnect the J170 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 J170-1 (UPI) - J169-1 (USV1) Always Below 1 Ω J170-1 (UPI) or J169-1 (USV1) - Body ground Always 10 kΩ or higher

*a Front view of wire harness connector (to Radio Receiver Assembly) *b Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

(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:

OK

REPLACE RADIO RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR