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:
DESCRIPTION The battery ECU assembly transmits and receives signals via CAN communication to and from the hybrid vehicle control ECU.
DTC No. Detection Item
DTC Detection Condition
Trouble Area MIL
Warning Indicate Note
U115087 Lost Communication with Hybrid
INITIALIZATION INITIALIZE MULTIPLEX NETWORK DOOR ECU
NOTICE: Initialization of the multiplex network door ECU (back door initial position learning) is necessary if the following work procedures are performed while the back door is open.
The cable to the negative (-) auxiliary battery terminal is
Work Procedure
Lost Communication with Hybrid Powertrain Control Module (Hybrid/EV Battery Local Bus) Missing Message (U115087)
