Lexus RX (RX 350L, RX450h) 2016-2026 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:
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REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
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Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Theft Deterrent System: Engine Hood Courtesy Switch Circuit
DESCRIPTION The engine hood courtesy switch is built into the hood lock assembly. This switch turns on when the engine hood is closed and turns off when the engine hood is opened. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer t ...
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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- Vehicle specifications
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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