CAN COMMUNICATION SYSTEM Plugin Charge Control ECU Communication Stop Mode

DESCRIPTION

Detection Item Symptom Trouble Area
Plugin Charge Control ECU Communication Stop Mode

  • "Plug-in Control" is not displayed on "CAN Bus Check" screen of the GTS.

  • Applies to Plugin Charge Control ECU Communication Stop Mode in DTC Combination Table.

  • Plugin charge control ECU assembly main wire or connector

  • Power source circuit of plugin charge control ECU assembly

  • Plugin charge control ECU assembly

WIRING DIAGRAM

A00434ME04
A003ZZYE02

INSPECTION PROCEDURE

Note


  • Turn the power switch off before measuring the resistances between CAN main bus wires and between CAN main bus branch wires.

  • Turn the power switch off before inspecting CAN bus wires for a ground short.

  • After the power switch is turned off, check that the key reminder warning system and light reminder warning system are not operating.

  • Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the power switch, any other switches or the doors. If any doors need to be opened in order to check connectors, open the doors and leave them open.

Tech Tips


  • Operating the power switch, any other switches or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.

  • Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.

PROCEDURE


  1. CHECK FOR OPEN IN CAN BUS WIRES (PLUGIN CHARGE CONTROL ECU ASSEMBLY MAIN WIRE)


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. A00438BE16
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Plugin Charge Control ECU Assembly)

      Disconnect the S21 plugin charge control ECU assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      S21-25 (CA1H) - S21-26 (CA1L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

    NG

    REPAIR OR REPLACE CAN MAIN BUS WIRE OR CONNECTOR (PLUGIN CHARGE CONTROL ECU ASSEMBLY MAIN WIRE)

    OK

  2. CHECK PLUGIN CHARGE CONTROL ECU ASSEMBLY POWER SOURCE CIRCUIT


    1. Check the plugin charge control ECU assembly power source circuit Click here.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

    OK

    REPLACE PLUGIN CHARGE CONTROL ECU ASSEMBLY Click here