B2287

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

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 shorted.









WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

(a) Check for DTC.

Result





B -- GO TO DTC B2785
A -- Continue to next step.

2. 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 OR CONNECTOR
OK -- Continue to next step.

3. 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 -- END (CERTIFICATION ECU IS FAULTY)