CHARGING SYSTEM(w/ Stop And Start System), Diagnostic DTC:P058A

DTC Code DTC Name
P058A Battery Monitor Module Performance

DESCRIPTION

The battery state sensor assembly detects the voltage, current and temperature of the battery. The battery state sensor assembly calculates State of Charge (SOC) based on the voltage and current of the battery and sends it to the ECM. Based on the signals received, the ECM adjusts the charging voltage of the generator assembly. The battery state sensor assembly calculates the battery temperature based on changes in resistance of a built-in thermistor and sends it to the ECM. The ECM reduces the amount of charging current based on this signal in order to protect the battery.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
P058A Battery Monitor Module Performance

Any of the following conditions is met with the ignition switch ON. (1 trip detection logic):


  • Current value is 999.939 A or higher or -1000 A or less for 3.2 seconds or more.

  • Difference between maximum and minimum current value is 0.0305 A or less for 100 seconds or more.

  • Current detection circuit malfunction condition is received.

  • Battery temperature is 105°C or higher or -40°C or lower for 3.2 seconds or more.

  • Temperature detection circuit malfunction condition is received.

  • Voltage value remains at 15.98 V or higher or 6.0 V or less for 3.2 seconds or more.

  • Voltage detection circuit malfunction condition is received.

  • Battery state sensor assembly internal memory write malfunction (battery identification information) occurs.

  • Battery state sensor assembly installation condition malfunction

  • Battery state sensor assembly

  • Wire harness or connector

  • Battery

 Charge warning light does not come on DTC stored

WIRING DIAGRAM

A004BCRE37
*a from Battery
*b ICS
*c Battery State Sensor Assembly
*d LIN Communication Line

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  • When P162B (Lost Communication with Battery Monitor Module) is output at the same time, perform the inspection for P162B (Lost Communication with Battery Monitor Module) first.

    Click here

PROCEDURE


  1. CHECK BATTERY STATE SENSOR ASSEMBLY INSTALLATION


    1. Check the installation condition of the battery state sensor assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    INSTALL BATTERY STATE SENSOR ASSEMBLY CORRECTLY Click here

    OK

  2. CHECK CHARGING SYSTEM


    1. Check the charging system.

      Click here

      Result
      Result
      OK
      NG

    NG

    REPAIR OR REPLACE CHARGING SYSTEM

    OK

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)


    1. A004B6UC92
      *a

      Front view of wire harness connector

      (to Battery State Sensor Assembly)

      Disconnect the battery state sensor assembly connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      B114-1 (+B) - Body ground Ignition switch ON 11 to 14 V
      Result
      Result
      OK
      NG

    OK

    REPLACE BATTERY STATE SENSOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR