DTC    B2287    LIN Communication Master Malfunction

DTC    B2289    Key Collation Waiting Time Over

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DESCRIPTION

This DTC is output when: 1) any other DTC is set in the power source control ECU; or 2) the wire harness between the power source control ECU and the certification ECU is open or short.

DTC No.
DTC Detection Condition
Trouble Area
B2287
Communication or communication line is abnormal between power source control ECU and certification ECU
  1. Power source control ECU
  2. Certification ECU
  3. Wire harness
B2289
Either condition below is met:
  1. Cable and BEAN are abnormal between power source control ECU and immobiliser system
  2. Immobiliser system is malfunctioning
  1. Power source control ECU
  2. Engine immobiliser system
  3. Wire harness
  4. Engine switch
  5. Entry function
  6. Key

A110087E01


WIRING DIAGRAM


A106715E02


INSPECTION PROCEDURE

1.CHECK WIRE HARNESS (POWER SOURCE CONTROL ECU - CERTIFICATION ECU)
A109238E03

  1. Disconnect the L73 ECU connector.

  1. Disconnect the V28 ECU connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    L73-30 (LIN1) - V28-10 (LIN)
    		Below 1 Ω
    L73-30 (LIN1) or V28-10 (LIN) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


2.CHECK CERTIFICATION ECU

  1. Temporarily replace the certification ECU with a new or normally functioning one.

  1. Check for DTCs again.

    OK:
    No DTC is output.



NG
REPLACE POWER SOURCE CONTROL ECU
OK

END (CERTIFICATION ECU IS FAULTY)