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.

Click here

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (NO. 1 STEREO JACK ADAPTER ASSEMBLY ILLUMINATION POWER SOURCE)

(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

2.

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY)

(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

3.

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

J152-8 (ACC) - J148-16 (ACC)

Always

Below 1 Ω

J152-8 (ACC) or J148-16 (ACC) - Body ground

Always

10 kΩ or higher

OK

REPLACE RADIO RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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