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:
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 PRECAUTION
-
- -
2 DISCHARGE FUEL SYSTEM PRESSURE
-
- -
3 DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
HOW TO PROCEED WITH TROUBLESHOOTING
OPERATION FLOW
HINT:
Perform troubleshooting in accordance with the procedure below. The following
is an outline of basic troubleshooting procedure. Confirm the troubleshooting procedure
for the circuit you are working on before beginning troubleshooting.