Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: DCM Data Signal Circuit between Navigation ECU and DCM
DESCRIPTION
This circuit is used to send and receive signals between the DCM (Telematics Transceiver), radio receiver assembly and navigation ECU.
WIRING DIAGRAM
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER)) |
(a) Disconnect the J157 DCM (Telematics Transceiver) connector.
(b) Disconnect the J149 radio receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J157-31 (USBG) - J149-11 (USBG) | Always | Below 1 Ω |
| J157-17 (VOT+) - J149-13 (VOR+) | Always | Below 1 Ω |
| J157-15 (USBV) - J149-10 (USBV) | Always | Below 1 Ω |
| J157-17 (VOT-) - J149-14 (VOR-) | Always | Below 1 Ω |
| J157-34 (VOR-) - J149-16 (VOT-) | Always | Below 1 Ω |
| J157-18 (VOR+) - J149-15 (VOT+) | Always | Below 1 Ω |
| J157-31 (USBG) or J149-11 (USBG) - Body ground | Always | 10 kΩ or higher |
| J157-17 (VOT+) or J149-13 (VOR+) - Body ground | Always | 10 kΩ or higher |
| J157-15 (USBV) or J149-10 (USBV) - Body ground | Always | 10 kΩ or higher |
| J157-17 (VOT-) or J149-14 (VOR-) - Body ground | Always | 10 kΩ or higher |
| J157-34 (VOR-) or J149-16 (VOT-) - Body ground | Always | 10 kΩ or higher |
| J157-18 (VOR+) or J149-15 (VOT+) - Body ground | Always | 10 kΩ or higher |
| NG | .gif) | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
.gif)
| 2. | CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - DCM (TELEMATICS TRANSCEIVER)) |
| (a) Disconnect the J157 DCM (Telematics Transceiver) connector. |
|
(b) Disconnect the J153 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J157-1 (USB-) - J153-2 (USB-) | Always | Below 1 Ω |
| J157-2 (USB+) - J153-1 (USB+) | Always | Below 1 Ω |
| J157-3 (USBS) - J153-3(USBS) | Always | Below 1 Ω |
| J157-1 (USB-) or J153-2 (USB-) - Body ground | Always | 10 kΩ or higher |
| J157-2 (USB+) or J153-1 (USB+) - Body ground | Always | 10 kΩ or higher |
| J157-3 (USBS) or J153-3 (USBS) - 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 |
Does not Recognize Voice Commands Performed to Contact Support Center
PROCEDURE 1. CHECK COMMUNICATION BASED VOICE RECOGNITION FUNCTION (a) While paying attention to the condition of the spoken voice command, say "Find a gas station in New York" and check that ...
Manual(sos)switch
ComponentsCOMPONENTS ILLUSTRATION *1 MANUAL (SOS) SWITCH (MAP LIGHT ASSEMBLY) - - ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Rear Door Speaker: Components
COMPONENTS ILLUSTRATION *1 COURTESY LIGHT ASSEMBLY *2 REAR DOOR ARMREST COVER *3 REAR DOOR INSIDE HANDLE BEZEL PLUG *4 REAR DOOR TRIM BOARD SUB-ASSEMBLY *5 REAR NO. 2 SPEAKER ASSEMBLY *6 REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY WITH REAR DOOR UPPER ARMREST BASE PANEL ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Steering Column: Multiplex Tilt And Telescopic Ecu
ComponentsCOMPONENTS ILLUSTRATION *1 LOWER STEERING COLUMN COVER *2 MULTIPLEX TILT AND TELESCOPIC ECU N*m (kgf*cm, ft.*lbf): Specified torque - - InstallationINSTALLATION PROCEDURE 1. INSTALL MULTIPLEX TILT AND TELESCOPIC ECU (a) Engage the claw to install the multiplex tilt ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
0.0211