DESCRIPTION
These DTCs are stored when a malfunction occurs in the navigation antenna assembly.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
B15C0 | GPS Antenna Connection Malfunction(short) | GPS Antenna Connection Malfunction(short) |
|
B15C1 | GPS Antenna Connection Malfunction(break) | GPS Antenna Connection Malfunction(break) |
|
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
PROCEDURE
1. | 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 | ![]() | USE SIMULATION METHOD TO CHECK |
|
2. | INSPECT ANTENNA CORD SUB-ASSEMBLY |
(a) Remove the antenna cord sub-assembly.
w/o Rear No. 2 Seat: Click here
w/ Rear No. 2 Seat: Click here
(b) Measure the resistance according to the value(s) in the table below.
*a | Component without harness connected (Antenna Cord Sub-assembly) |
*a | Component without harness connected (Antenna Cord Sub-assembly) |
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
A-3 - B-1 | Always | Below 1 Ω |
A-3a - B-1a | Always | Below 1 Ω |
A-3 or B-1 - Body ground | Always | 10 kΩ or higher |
NG | ![]() | REPLACE ANTENNA CORD SUB-ASSEMBLY |
|
3. | INSPECT NAVIGATION ANTENNA ASSEMBLY |
(a) Remove the navigation antenna assembly.
Click here
(b) Inspet the navigation antenna assembly.
Click here
OK | ![]() | REPLACE RADIO RECEIVER ASSEMBLY |
NG | ![]() | REPLACE NAVIGATION ANTENNA ASSEMBLY |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Immobiliser System: ID BOX EEPROM Malfunction (B2790)
DESCRIPTION When an internal malfunction occurs in the ID code box (immobiliser code ECU), the certification ECU (smart key ECU assembly) stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B2790 ID BOX EEPROM Malfunction An internal malfunction occur ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Theft Deterrent System: Theft Warning Siren Circuit
DESCRIPTION The theft warning siren assembly sounds if either of the following conditions is met:
The theft deterrent system is in the alarm sounding state.
The theft warning siren assembly is in the armed state when the power source, ground or communication line is open.
WIRING DIAGRAM CAU ...