CHARGING SYSTEM(w/ Stop And Start System), Diagnostic DTC:P1602

DTC Code DTC Name
P1602 Deterioration of Battery

DESCRIPTION

The ECM determines the battery capacity according to the voltage of the BATT terminal while the engine is running (not cranking).

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

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

(1 trip detection logic)

  • Battery

  • Wire harness or connector

 Charge warning light does not come on DTC stored

WIRING DIAGRAM

B004771E02
*a from Battery
*b EFI NO. 3

CAUTION / NOTICE / HINT

Note


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

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

PROCEDURE


  1. CHECK CHARGING SYSTEM


    1. Check the charging system.

      Click here

      Result
      Result
      OK
      NG

    NG

    REPAIR OR REPLACE CHARGING SYSTEM

    OK

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)


    1. B0045CXC30
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A58-1 (BATT) - 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