B2287

DTC Code	DTC Name
B2287	LIN Communication Master Malfunction

DESCRIPTION

This DTC is stored when there is an open, short or ECU communication malfunction between the power management control ECU and certification ECU (smart key ECU assembly).

DTC No.	DTC Detection Condition	Trouble Area
B2287	There is an open, short or ECU communication malfunction between the power management control ECU and certification ECU (smart key ECU assembly).	Power management control ECU Certification ECU (smart key ECU assembly) Wire harness or connector

WIRING DIAGRAM


*1	Power Management Control ECU
*2	Certification ECU (Smart Key ECU Assembly)
*3	LIN Communication Line

CAUTION / NOTICE / HINT

Note

If the certification ECU (smart key ECU assembly) or power management control ECU is replaced, register the keys (refer to the Service Bulletin).

PROCEDURE

CHECK DTC OUTPUT

Clear the DTCs Click here.

Recheck for DTCs.

Result

Result	Proceed to
Only DTC B2287 is output.	A
DTC B2287 and B2785 are output simultaneously.	B

Tech Tips

When DTC B2287 and B2785 are output simultaneously, perform troubleshooting for DTC B2785 first.

B

GO TO DTC B2785 Click here

A

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - POWER MANAGEMENT CONTROL ECU)

Disconnect the H2 power management control ECU and H58 certification ECU (smart key ECU assembly) connectors.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
H2-11 (LIN2) - H58-12 (LIN)	Always	Below 1 Ω
H2-11 (LIN2) - Body ground	Always	10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

REPLACE POWER MANAGEMENT CONTROL ECU
1. Replace the power management control ECU Click here.
NEXT
CHECK DTC OUTPUT
1. Clear the DTCs Click here.
2. Recheck for DTCs.
  
  OK
  
  DTC B2287 is not output.
OK
END (POWER MANAGEMENT CONTROL ECU WAS DEFECTIVE)

NG
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

LIN COMMUNICATION SYSTEM, Diagnostic DTC:B2287