DESCRIPTION
This DTC is stored when a malfunction in the submersion monitor circuit inside the power management control ECU is detected.
HINT:
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
NOTICE:
PROCEDURE
1. |
CHECK FOR TRACES OF WATER |
(a) Check the power management control ECU, peripheral components and wire harnesses for traces of water.
Result
Result |
Proceed to |
---|---|
There are traces of water |
A |
There are no traces of water |
B |
A | ![]() |
TAKE APPROPRIATE MEASURES AGAINST CAUSE OF WATER DAMAGE AND REPLACE POWER MANAGEMENT CONTROL ECU |
B | ![]() |
REPLACE POWER MANAGEMENT CONTROL ECU |
Power Source Mode does not Change to ON (IG)
DESCRIPTION
When the engine switch is pushed with the key in the cabin, the power management
control ECU receives signals to switch the power source mode.
WIRING DIAGRAM
Refer to "Power Source Mode does not Change to on (IG and ACC)" (See page
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