СИСТЕМА ЗАРЯДКИ ДВИГАТЕЛЯ, 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 charging condition is calculated from the voltage and current and output to the ECM. The ECM sends an instruction to generate voltage to the generator assembly based on that signal. Also, the battery temperature is calculated from the change in the resistance value of the thermistor built into the battery state sensor assembly and output to the ECM. The ECM reduces the charging current when the battery is hot and protects the battery based on this signal.

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

Diagnosis condition: Ignition switch to ON

Malfunction status:


  • 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 (221°F) or higher or -40°C (-40°F) 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.

Other: 1 trip

  • Battery state sensor assembly installation condition malfunction

  • Battery state sensor assembly

  • Wire harness or connector

  • Battery

 Not displayed DTC stored

WIRING DIAGRAM

A01QS43E05

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. A01QS1SC19
      *a

      Front view of wire harness connector

      (to Battery State Sensor Assembly)

      Disconnect the A75 battery state sensor assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A75-1 (+B) - Body ground Always 11 to 14 V
      Result
      Result
      OK
      NG

    OK

    REPLACE BATTERY STATE SENSOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR