DESCRIPTION
This DTC is stored when there is an open or short circuit, or ECU communication malfunction between the power management control ECU and certification ECU.
DTC Code | DTC Detection Condition | Trouble Area |
---|---|---|
B2287 | There is an open or short circuit, or ECU communication malfunction between the power management control ECU and certification ECU. |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
Note
When using the intelligent tester with the ignition switch off to troubleshoot:
Connect the intelligent tester to the vehicle, and turn a courtesy light switch on and off at 1.5 second intervals until communication between the intelligent tester and vehicle begins.
Inspect the fuses and bulbs for circuits related to this system before performing the following inspection procedure.
Tech Tips
When DTC B2287 and B2785 are output simultaneously, perform troubleshooting for DTC B2785 first Click here.
PROCEDURE
CLEAR DTC
Clear the DTCs Click here.
NEXT |
CHECK FOR DTC
Check for DTCs Click here.
Result | Proceed to |
---|---|
DTC B2287 is output | A |
DTC B2287 is not output | B |
B |
USE SIMULATION METHOD TO CHECK Click here |
A |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - POWER MANAGEMENT CONTROL ECU)
*1 | Front view of wire harness connector (to Certification ECU) |
*2 | Front view of wire harness connector (to Power Management Control ECU) |
Disconnect the H51 and H71 ECU connectors.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - BATTERY AND BODY GROUND)
*1 | Front view of wire harness connector (to Certification ECU) |
Disconnect the H51 ECU connector.
Measure the resistance and voltage according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
REPLACE CERTIFICATION ECU
Temporarily replace the certification ECU with a new one.
Clear the DTCs Click here.
NEXT |
CHECK FOR DTC
Check for DTCs Click here.
Result | Proceed to |
---|---|
DTC B2287 is not output | A |
DTC B2287 is output (for LHD) | B |
DTC B2287 is output (for RHD) | C |
B |
REPLACE POWER MANAGEMENT CONTROL ECU Click here |
C |
REPLACE POWER MANAGEMENT CONTROL ECU Click here |
A |
END (CERTIFICATION ECU IS DEFECTIVE)