DESCRIPTION
This DTC is stored when a malfunction in the water submersion detection circuit inside the certification ECU (smart key ECU assembly) is detected.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
---|---|---|---|---|
B2277 |
Detecting Vehicle Submersion |
Water submersion detected by the water submersion detection circuit inside the certification ECU (smart key ECU assembly). (1-trip detection logic*) |
Certification ECU (Smart key ECU assembly) |
|
Vehicle Condition when Malfunction Detected |
Fail-safe Function when Malfunction Detected |
---|---|
The engine switch cannot be turned off and the engine cannot be started. |
- |
DTC No. |
Data List and Active Test |
---|---|
B2277 |
- |
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
HINT:
PROCEDURE
1. |
CHECK WATER INTRUSION |
(a) Check that the certification ECU (smart key ECU assembly), its ground area and wire harnesses have no signs of water intrusion.
Result |
Proceed to |
---|---|
No sign of water intrusion found |
A |
Signs of water intrusion found |
B |
A | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
B | ![]() |
CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Toyota CH-R Service Manual > Steering Heater Switch: Components
COMPONENTS
ILLUSTRATION
*1
COWL SIDE TRIM BOARD LH
*2
FRONT DOOR SCUFF PLATE LH
*3
FUSE BOX OPENING COVER
*4
HOOD LOCK CONTROL LEVER SUB-ASSEMBLY
*5
INSTRUMENT CLUSTER FINISH ...
Toyota CH-R Owners Manual > Opening, closing and locking the doors: Smart key system
The following operations can be performed simply by carrying the
electronic key on your person, for example in your pocket.
The driver should always carry the electronic key.
Unlocks and locks the doors
Unlocks and locks the back door
Starts the engine
■Antenna location
Antenn ...