СИСТЕМА ЗАРЯДКИ ДВИГАТЕЛЯ, Diagnostic DTC:P1602

DTC Code DTC Name
P1602 Deterioration of Battery

DESCRIPTION

The battery state sensor assembly detects the battery voltage. When the engine is running, the battery state sensor assembly determines the battery status based on the detected voltage and sends this information to the engine control ECU. If the engine control ECU judges that the battery has deteriorated based on the signal received, it stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
P1602 Deterioration of Battery

Battery voltage is low for 10 seconds or more when the engine is running (not cranking).

(1 trip detection logic)

  • Battery

  • Wire harness and connector

 Charge warning light does not come on DTC stored

WIRING DIAGRAM

Refer to DTC P058A.

Click here

CAUTION / NOTICE / HINT

Note


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

  • When P058A (Battery Monitor Module Performance) is output at the same time, perform the inspection for P058A01 (Battery Monitor Module Performance) first.

    Click here

  • 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 CONDITION


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

      Result
      Result
      OK
      NG

    NG

    INSTALL THE 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. Check that the battery state sensor assembly connector is securely connected.

      OK
      The connector is securely connected.
    2. A01IENKC04
      *a

      Front view of wire harness connector

      (to Battery State Sensor Assembly)

      Disconnect the A5 battery state sensor assembly connector.

    3. Check the connector case and terminals for deformation or corrosion.

      OK
      No deformation or corrosion.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A5-1 (+B) - Body ground Always 11 to 14 V
      Result
      Result
      OK
      NG

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR