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Inspection Procedure 3: Electric-folding door mirror timer function does not work normally.
 
 
caution
  • Before replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
  • When the ETACS-ECU of vehicles without KOS is replaced, the encrypted code of the ignition key needs to be registered to the ETACS-ECU (If the encrypted code is not registered, the engine cannot be started. Register the encrypted code as described in GROUP 54A, Immobilizer System - How to Register Key ID ).
 
 
TECHNICAL DESCRIPTION (COMMENT)
If the door mirrors can be operated by using the electric remote controlled mirror switch (folding/unfolding switch), the ETACS-ECU may be faulty.
 
 
 
TROUBLESHOOTING HINTS
  • Malfunction of ETACS-ECU
 
 
 
 
DIAGNOSIS
STEP 1. Check the operation of the electric-folding door mirror.
Check that the electric folding door mirrors can work normally with the ignition switch at ACC.
Is the check result normal?
Go to Step 2.
Refer to Inspection Procedure 1 "Electric-folding door mirrors do not work at all ."
 
STEP 2. Using scan tool (M.U.T.-IIISE), read the ETACS-ECU DTC.
Check if DTC is set in the ETACS-ECU.
Is the DTC set?
Troubleshoot the ETACS (Refer to GROUP 54A, ETACS - Diagnosis Trouble Code Chart ).
Go to Step 3.
 
STEP 3. Retest the system.
Check that the electric-folding door mirror timer function works normally.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
Replace ETACS-ECU.