|DTC Code||DTC Name|
|B2277||Detecting Vehicle Submersion|
This DTC is stored when a malfunction in the submersion monitor circuit inside the power management control ECU is detected.
When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode is reset to on (IG). When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.
|DTC Code||DTC Detection Condition||Trouble Area|
|B2277||A malfunction in the submersion monitor circuit inside the power management control ECU is detected.||
CAUTION / NOTICE / HINT
When using the intelligent tester with the engine 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.
Before performing the inspection, check that there are no problems related to the CAN communication system and LIN communication system.
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
CHECK FOR TRACES OF WATER
Check the power management control ECU, peripheral components, and wire harnesses for traces of water.
|There are no traces of water.||A|
|There are traces of water.||B|
REPLACE POWER MANAGEMENT CONTROL ECU Click here
TAKE APPROPRIATE MEASURES AGAINST CAUSE OF WATER DAMAGE AND REPLACE POWER MANAGEMENT CONTROL ECU