B2287

2GR-FE STARTING: SMART KEY SYSTEM: B2287: LIN Communication Master Malfunction

DTC B2287 - LIN Communication Master Malfunction

DTC B2289 - Key Collation Waiting Time Over

DESCRIPTION

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.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

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





(a) Disconnect the D44 ECU connector.





(b) Disconnect the D39 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK POWER SOURCE CONTROL ECU OPERATION
(a) After replacing power source control ECU with a normally functioning ECU, check that the engine starts.
OK:
Engine can start normally.
Result:





C -- GO TO SMART KEY SYSTEM (MATCHING FOR THE INSIDE OF THE CABIN CANNOT BE PERFORMED)
B -- REPLACE CERTIFICATION ECU
A -- END (POWER SOURCE CONTROL ECU DEFECTIVE)