DTC P058A-01: Battery Monitor Module General Electrical Failure [10/2022 - 10/2024]: Procedure
WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK BATTERY STATE SENSOR ASSEMBLY INSTALLATION CONDITION
Result:
NG
INSTALL THE BATTERY STATE SENSOR ASSEMBLY CORRECTLY. Refer to INSTALLATION [10/2022 - ]
Result:
OK
See step 2
- CHECK CHARGING SYSTEM
- Check the charging system.
Refer to ON-VEHICLE INSPECTION [10/2022 - ]
Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE CHARGING SYSTEM
Result:
OK
See step 3
- Check the charging system.
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
Pre-procedure1
- Check that the battery state sensor assembly connector is securely connected.
OK
The connector is securely connected.
- Disconnect the battery state sensor assembly connector.
- Check the connector case and terminals for deformation or corrosion.
OK
No deformation or corrosion.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition Result A40-3 (+B) - Body ground Always 11 to 14 V V A40-1 (RBAT) - Body ground Always 11 to 14 V V Result
Proceed to OK NG
Post-procedure1
- None.
Result:
OK
REPLACE BATTERY STATE SENSOR ASSEMBLY. Refer to REMOVAL [10/2022 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Check that the battery state sensor assembly connector is securely connected.