Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: GPS Antenna Connection Malfunction(short) (B15C0,B15C1)
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) | Navigation antenna assembly error |
|
| B15C1 | GPS Antenna Connection Malfunction(break) | Navigation antenna assembly power source malfunction |
|
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.
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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.
| NG |  | 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) Inspect the navigation anenna assembly.
Click here
| OK | | REPLACE NAVIGATION ECU |
| NG | | REPLACE NAVIGATION ANTENNA ASSEMBLY |
Navigation Processor Malfunction (B15AD)
DESCRIPTION This DTC is stored when a malfunction occurs in the navigation ECU. DTC No. Detection Item DTC Detection Condition Trouble Area B15AD Navigation Processor Malfunction When ...
Speed Signal Malfunction (B15C2)
DESCRIPTION The navigation ECU receives a vehicle speed signal from the combination meter assembly and information from the navigation antenna, and then adjusts the vehicle position. The navigation EC ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Immobiliser System: Engine Starter Communication Malfunction (B2779)
DESCRIPTION If the remote engine start ECU does not respond to the certification ECU (smart key ECU assembly) or the remote engine start ID is not registered, this DTC is stored. HINT: Registration status of the remote engine start ECU ID can be checked using the "Wireless C Code" item in the Data L ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Lane Control System: Terminals Of Ecu
TERMINALS OF ECU CHECK FORWARD RECOGNITION CAMERA NOTICE:
DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the inspection has been completed.
Do not apply excessive force to the forward recognition camera conn ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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- Instrument cluster
- Operation of each component
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- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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