DTC B2286: Runnable Signal Malfunction: Procedure

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CHECK HARNESS AND CONNECTOR (POWER SOURCE) See step 1
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE

OK: Go to next step
CHECK HARNESS AND CONNECTOR (GROUND) See step 2
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step
CHECK FOR DTC
1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Turn the power switch on (IG).
3. After 25 seconds have elapsed, check if the DTC has been output again.
  OK
  
  DTC B2286 is not output.
NG → See step 4

OK → See step 5
REPLACE POWER MANAGEMENT CONTROL ECU. Refer to REMOVAL
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING