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
Body Electrical > Smart Key > Clear DTCs
|
2. |
CHECK FOR DTC |
(a) Check for DTCs.
Click here
Body Electrical > Smart Key > Trouble CodesOK:
DTC B278C is not output.
OK |
USE SIMULATION METHOD TO CHECK |
NG |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Toyota CH-R Service Manual > Rear Disc Brake Pad(for Tmmt Made): Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
The following procedure is for the LH side.
Use the same procedure for the RH side and LH side.
PROCEDURE
1. PRECAUTION
Click here
2. REMOVE REAR WHEEL
Click here
3. PERFORM REAR BRAKE PAD REPLACEMENT MODE
Click here
4. D ...
Toyota CH-R Service Manual > Electric Parking Brake System: Test Mode Procedure
TEST MODE PROCEDURE
REAR BRAKE PAD REPLACEMENT MODE
*1
Rear Disc Brake Piston
*2
Nut
*a
The nut moves inward in pad replacement mode
HINT:
When replacing the rear disc brake pad and rear disc, since the nut ...