DESCRIPTION
This DTC is stored when a video or audio signal is interrupted due to battery voltage input to the radio receiver assembly dropping temporarily.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
B158F | AV Signal Stoppage (Low Battery Voltage) | A video or audio signal is interrupted when the battery voltage drops |
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WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. | CHECK VEHICLE SIGNAL (OPERATION CHECK) |
(a) Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation Check. Click here |
|
(b) Measure the battery voltage.
Standard Voltage:
11 to 14 V
HINT:
This display is updated once per second.
NG | ![]() | GO TO STEP 3 |
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2. | CHECK DTC |
(a) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs(b) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble CodesOK:
No DTCs are output.
OK | ![]() | END |
NG | ![]() | REPLACE RADIO RECEIVER ASSEMBLY |
3. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY POWER SOURCE) |
(a) Disconnect the J148 radio receiver assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
J148-4 (+B1) - Body ground | Always | 11 to 14 V |
OK | ![]() | REPLACE RADIO RECEIVER ASSEMBLY |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Audio And Visual System (for 8 Inch Display): Microphone Circuit
DESCRIPTION
The radio receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines.
Using this circuit, the radio receiver assembly sends power to the telephone microphone assembly, and the telephone microphone assembly s ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Headup Display: Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during headup display (meter mirror sub-assembly) removal/installation are shown below. Necessary Procedures Af ...