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DTC B2275: STSW Monitor Malfunction [09/2014 - ]: Description

This DTC is stored when a malfunction is detected in the starter circuit inside the power management control ECU.

HINT: 

When the cable is disconnected and reconnected to the negative (-) auxiliary battery terminal, the power source mode returns to the state it was in before the cable was disconnected.

DTC Code DTC Detection Condition Trouble Area DTC Output Confirmation Operation
B2275 Power management control ECU internal HV activation request output circuit malfunction or external circuit malfunction (1-trip detection logic*)
  • AM2 fuse
  • Steering lock system
  • Power management control ECU
  • Wire harness or connector
 Turn the power switch on (IG) and wait 10 seconds or more, then start the hybrid control system 3 times.
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED

Vehicle Condition when Malfunction Detected Fail-safe Function when Malfunction Detected
  • The power source mode changes to on (READY) even though the hybrid control system is not started.
  • The power source mode does not change to on (READY) even though the hybrid control system is started.
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RELATED DATA LIST AND ACTIVE TEST ITEMS

DTC Data List Item Active Test Item
B2275 Power Source Control 
  • Starter Request Signal
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