DESCRIPTION
This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and power management control ECU stops for 10 seconds or more.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
B278C |
Lost Communication with Power Source Control |
An internal malfunction occurs in the certification ECU (smart key ECU assembly). |
Certification ECU (smart key ECU assembly) |
HINT:
The power management control ECU is built into the certification ECU (smart key ECU assembly).
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. |
CLEAR DTC |
(a) Clear the DTCs.
Click here
|
2. |
CHECK FOR DTC |
(a) Check for DTCs.
Click here
OK:
DTC B278C is not output.
OK | ![]() |
USE SIMULATION METHOD TO CHECK
|
NG | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Toyota CH-R Service Manual > Front Bumper: Components
COMPONENTS
ILLUSTRATION
*1
FRONT BUMPER ASSEMBLY
*2
FRONT FENDER MOULDING SUB-ASSEMBLY LH
*3
FRONT FENDER MOULDING SUB-ASSEMBLY RH
*4
RADIATOR COVER
ILLUSTRATION
*A
fo ...
Toyota CH-R Service Manual > Rear Door Lock: Removal
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration)
that must be performed after parts are removed and installed, or replaced during
the rear door lock with motor assembly removal/installation are shown below.
Necessary Procedure ...