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) |
Rear Door LH ECU Communication Stop (B2324)
Front Passenger Side Door ECU Communication Stop (B2322)Toyota CH-R Owners Manual > Steps to take in an emergency: Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or when
an airbag inflates upon collision, the fuel pump shut off system stops the supply
of fuel to the engine.
Follow the procedure below to restart the engine after the system is activated.
Vehicles without a smart key system
1. T ...
Toyota CH-R Service Manual > Power Window Control System: Power Window Motor Malfunction (B2311)
DESCRIPTION
The power window regulator motor assemblies are operated by the multiplex network
master switch assembly, power window regulator switch assembly or rear power window
regulator switch assemblies. The power window regulator motor assemblies have motor,
regulator and ECU functions.
...