Inspection steps

CAUTION:

The entry & start system has functions that use the CAN communication. Before performing troubleshooting, perform the inspection in "How to troubleshoot", and check that there are no communication problems. (Refer to HOW TO PROCEED WITH TROUBLESHOOTING )
Before replacing the collation ECM (smart key ECM assembly), refer to "entry & start system (entry function)". (Refer to PARTS LOCATION )
After repair, perform the [DTC output confirmation operation], and check that the DTC is not output again.

NOTE: Before performing troubleshooting, check the collation ECM (smart key ECM assembly) for any damage due to water. If symptoms of damage from water are found, replace the collation ECM (smart key ECM assembly), and take countermeasures against the cause of the damage from water.

Checking for damage from water

Check for any evidence of water on the collation ECM (smart key ECM assembly), surrounding parts, and wiring harnesses.

Result

Result	Go to
There is evidence of water.	A
There is no evidence of water.	B

B: Replacement of the collation ECM (smart key ECM assembly)

A: Taking the appropriate countermeasures against damage from water, and replacement the collation ECM (smart key ECM assembly).