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 |
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT BRAKE BOOSTER ASSEMBLY
(a) Airtightness check
(1) Start the engine and stop it after 1 or 2 minutes. Slowly depress
the brake pedal several times.
If the pedal can be depressed to the floor the f ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...