DTC B2287: LIN Communication Master Malfunction; DTC B2289: Key Collation Waiting Time Over: Procedure

1. Disconnect the D44 ECU connector.
   Fig 1: View Of Disconnected D44 ECU Connector Terminal

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2. Disconnect the D39 ECU connector.
   Fig 2: View Of Disconnected D39 ECU Connector Terminal

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

   Resistance

   Terminal No. (Symbol)	Specified Condition
   D44-30 (LIN1) - D39-10 (LIN)	Below 1 Ω
   D44-30 (LIN1) - Body ground	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. After replacing power source control ECU with a normally functioning ECU, check that the engine starts.

   OK

   Engine can start normally.

   Result

   Condition	Proceed to
   OK	A
   NG (When troubleshooting according to the DTC B2287)	B
   NG (When troubleshooting according to the DTC B2289)	C

B → REPLACE CERTIFICATION ECU 

C → GO TO SMART KEY SYSTEM (MATCHING FOR THE INSIDE OF THE CABIN CANNOT BE PERFORMED) Found In  PROBLEM SYMPTOMS TABLE 

A → END (POWER SOURCE CONTROL ECU DEFECTIVE)