DESCRIPTION
When a USB device or "iPod" is connected to the USB jack of the No. 1 stereo jack adapter assembly, it must have playable files. The device must also communicate with and be recognized by the radio receiver assembly. This diagnostic procedure is for when a device is not recognized, or files from the device cannot be played normally.
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
HINT:
PROCEDURE
1. | CHECK USB DEVICE OR "iPod" |
(a) Disconnect the USB device or "iPod" from the No. 1 stereo jack adapter assembly.
(b) Check if playable files are present on the USB device or "iPod".
HINT:
Refer to System Description for playable files.
Click here
(c) Check if the USB device is a compatible format or "iPod" is a compatible version.
HINT:
Refer to System Description for compatible formats and versions.
Click here
Result | Proceed to |
---|---|
No playable files exist, or incompatible device format or version. | A |
Playable files exist, and compatible device format or version. | B |
A | ![]() | END (USB DEVICE FORMAT IS INCOMPATIBLE, "iPod" VERSION IS INCOMPATIBLE, OR NO PLAYABLE FILES EXIST) |
|
2. | 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 |
---|---|---|
J148-2 (GND2) - J152-3 (GND) | Always | Below 1 Ω |
J148-3 (+B) - J152-4 (+B) | Always | Below 1 Ω |
J148-16 (ACC) - J152-8 (ACC) | Always | Below 1 Ω |
J148-2 (GND2) or J152-3 (GND) - Body ground | Always | 10 kΩ or higher |
J148-3 (+B) or J152-4 (+B) - Body ground | Always | 10 kΩ or higher |
J148-16 (ACC) or J152-8 (ACC) - Body ground | Always | 10 kΩ or higher |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. | 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 |
---|---|---|
J169-1 (USV1) - J170-1 (UPI) | Always | Below 1 Ω |
J169-2 (US1-) - J170-2 (UDO-) | Always | Below 1 Ω |
J169-3 (US1+) - J170-3 (UDO+) | Always | Below 1 Ω |
J169-4 (UGD1) - J170-4 (UJSG) | Always | Below 1 Ω |
J169-5 (USG1) - J170-5 (UJSS) | Always | Below 1 Ω |
J169-1 (USV1) or J170-1 (UPI) - Body ground | Always | 10 kΩ or higher |
J169-2 (US1-) or J170-2 (UDO-) - Body ground | Always | 10 kΩ or higher |
J169-3 (US1+) or J170-3 (UDO+) - Body ground | Always | 10 kΩ or higher |
J169-4 (UGD1) or J170-4 (UJSG) - Body ground | Always | 10 kΩ or higher |
J169-5 (USG1) or J170-5 (UJSS) - Body ground | Always | 10 kΩ or higher |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. | CHECK RADIO RECEIVER ASSEMBLY (NO. 1 STEREO JACK ADAPTER ASSEMBLY 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) - J170-4 (UJSG) | Engine switch on (ACC) | 4.5 to 5.5 V |
J152-8 (ACC) - J152-3 (GND) | Engine switch on (ACC) | 11 to 14 V |
J152-4 (+B) - J152-3 (GND) | Always | 11 to 14 V |
NG | ![]() | REPLACE RADIO RECEIVER ASSEMBLY |
|
5. | FORMAT USB DEVICE OR RESTORE "iPod" AND RECHECK |
(a) Delete all files in the USB device or "iPod" and format/restore it.
(b) Save the data again and check if it can be played on the in-vehicle device.
NOTICE:
Formatting a USB device or restoring an "iPod" erases all music on the device. Ensure that backup music data is available before performing this operation.
HINT:
Make sure to obtain the customer's permission to perform this procedure.
OK:
Malfunction disappears.
OK | ![]() | END |
|
6. | REPLACE USB DEVICE OR "iPod" |
(a) Turn the engine switch off.
HINT:
When this malfunction occurs, it is necessary to turn the engine switch off to make it possible for the vehicle to recognize a new device when it is connected.
(b) Turn the engine switch on (ACC).
(c) Connect a known good USB device or "iPod" to the No. 1 stereo jack adapter assembly.
HINT:
Click here
|
7. | CHECK USB DEVICE OR "iPod" |
(a) Check if a USB device or "iPod" is recognized by the radio receiver assembly, and if information such as track, artist and album names is displayed on the screen.
OK:
USB device or "iPod" is recognized properly and the information is displayed on the screen.
OK | ![]() | USB DEVICE OR "iPod" WAS INCOMPATIBLE OR DEFECTIVE |
NG | ![]() | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Lighting System: Operation Check
OPERATION CHECK INSPECT ILLUMINATED ENTRY SYSTEM OPERATION NOTICE: Perform this inspection with the customize parameters at the initial settings. HINT: Perform this inspection with the door switch of the map light assembly on. Lights Controlled by Illuminated Entry System Control Condition Li ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Vehicle Stability Control System: Brake Warning Light does not Come ON
DESCRIPTION The skid control ECU (brake actuator assembly) controls the brake warning light in the combination meter assembly via CAN communication. CAUTION / NOTICE / HINT NOTICE: After replacing the skid control ECU (brake actuator assembly), perform "Calibration". Click here PROCEDURE 1. ...