B2287

2GR-FSE STARTING: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: B2287: LIN Communication Master Malfunction

DTC B2287 - LIN Communication Master Malfunction

DTC B2289 - Key Collation Waiting Time Over

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.










WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

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





(a) Disconnect the K73 ECU connector.
(b) Disconnect the U28 ECU connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
2. CHECK AND REPLACE CERTIFICATION ECU
(a) Temporarily replace the certification ECU with a new or normally functioning one.
(b) Check for DTCs again.
OK:
No DTC is output.
NG -- REPLACE POWER SOURCE CONTROL ECU
OK -- REPLACE CERTIFICATION ECU