Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: AVC-LAN Circuit
DESCRIPTION
Each unit of the audio and visual system connected to the AVC-LAN (communication bus) transmits switch signals via AVC-LAN communication.
If a short to +B or short to ground occurs in the AVC-LAN, the audio and visual system will not function normally because communication is not possible.
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 Audio and Visual System.
Click here .gif)
HINT:
The radio receiver assembly is the master unit.
PROCEDURE
| 1. | INSPECT RADIO RECEIVER ASSEMBLY |
(a) Remove the radio receiver assembly.
Click here
| (b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| NG | .gif) | REPLACE RADIO RECEIVER ASSEMBLY |
|
.gif)
| 2. | CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT) |
(a) Disconnect the J148 radio receiver assembly connector.
(b) Disconnect the J56 multi-display assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J148-5 (TX1+) - J56-7 (TX+) | Always | Below 1 Ω |
| J148-6 (TX1-) - J56-19 (TX-) | Always | Below 1 Ω |
| J148-5 (TX1+) or J56-7 (TX+) - Body ground | Always | 10 kΩ or higher |
| J148-6 (TX1-) or- J56-19 (TX-) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 3. | INSPECT MALFUNCTIONING PARTS |
(a) Disconnect and reconnect each slave unit one by one until the master unit returns to normal.
HINT:
- Check all slave units.
- If disconnecting a slave unit causes the master unit to return to normal, the slave unit is defective and should be replaced.
OK:
Master unit returns to normal.
| OK | | REPLACE MALFUNCTIONING PARTS |
| NG | | REPLACE RADIO RECEIVER ASSEMBLY |
Data Signal Circuit between Radio Receiver and Stereo Jack Adapter
DESCRIPTION The No. 1 stereo jack adapter assembly sends the sound data signal or image data signal from a USB device to the radio receiver assembly via this circuit. WIRING DIAGRAM PROCEDURE 1. ...
Vehicle Speed Signal Circuit between Navigation ECU and Combination Meter
DESCRIPTION The navigation ECU receives a vehicle speed signal from the combination meter assembly. HINT:
A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter as ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Steering Angle Sensor: Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during steering sensor removal/installation are shown below. Necessary Procedure After Parts Removed/Installed/Re ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Sfi System: Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1 (P001400,P001500,P002400,P002500)
DESCRIPTION Refer to DTC P001313. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note P001400 Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1 Exhaust valve timing is stuck at a certain value when in the advance ran ...
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
0.0096