Toyota Corolla Cross: When Replacing Or Removing/installing Parts
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WORK PROCEDURE
PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED (for HEV Model)
Replacement Part
Necessary Procedure
Effect/Inoperative Function when Necess
ECU CONFIGURATION
STABILIZE A POWER SOURCE ON THE VEHICLE SIDE
Shut off as many following systems and parts as possible since they would generate
an electrical load.
CAUTION:
If vehicle systems
UPDATE ECU SECURITY KEY
NOTICE:
It is necessary to log in to the Toyota server to perform an ECU security
key update.
Users other than Toyota dealers can log in with a guest account issued
SEE MORE:
VEHICLE CONTROL HISTORY (RoB)
NOTICE:
Replacing or repairing related components may cause vehicle control history codes to be stored.
When checking the vehicle control history, make sure to record the output histories. Then, clear the histories and recheck the output histories again.
DESCRIPTION
If the certification ECU (smart key ECU assembly) detects a communication error
with an ECU connected to the certification bus lines for 7 seconds or more, DTC
B278588 will be stored.
DTC No.
Detection Item
DTC Detection Condition
Trouble
Work Procedure
VEHICLE CONTROL HISTORY (RoB)
