INSPECTION PROCEDURE 6: Keyless entry system-linked fold/unfold function does not work normally.



caution Whenever ECU is replaced, ensure that the input and output signal circuits are normal.


OPERATION


The ETACS-ECU operates this function in accordance with the keyless entry transmitter input signals.

COMMENTS ON TROUBLE SYMPTOM


If this function does not work normally, keyless entry transmitter input signal circuit or the ETACS-ECU may be defective. Also, with the customise function, the door mirrors may be set other than to the keyless entry interlock fold/unfold function.

PROBABLE CAUSES



  • Defective keyless entry transmitter
  • Malfunction of the ETACS-ECU
  • Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE


STEP 1. Check the ETACS customise function.


Use the ETACS customise function to confirm that "AUTO FOLD MIRROR" is set to "KEYLESS OPEN OR CLOSE".

Q. Is the check result normal?

Go to Step 2.
Use the ETACS customise function to set "AUTO FOLD MIRROR" to "KEYLESS OPEN OR CLOSE" (Refer to ).

STEP 2. Check the keyless entry operation.


Check that the keyless entry system works normally.

Q. Is the check result normal?

Go to Step 3.
Refer to Inspection Procedure 13 "Keyless entry system does not work ."

STEP 3. Retest the system.


Check that the keyless entry interlock fold/unfold function for the door mirrors works normally.

Q. Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
Replace the ETACS-ECU.