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

WARNING: This page is about a different car, the 2006 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

These DTCs are 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 DETECTION CONDITION CHART

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

Fig 1: Wiring Diagram - Key Collation Waiting Time Over