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Inspection Procedure 15: Multimode keyless entry function does not work at all.
 
 
cautionBefore replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
 
 
 
 
OPERATION
With a ETACS customization function, using the keyless operation key, the electric-folding door mirrors <Vehicles with electric retractable remote controlled door mirrors> can be activated.
 
 
PROBABLE CAUSES
  • Malfunction of the keyless operation key
  • Function setting error or no setting with a customization
  • Malfunction of ETACS-ECU
 
 
DIAGNOSIS
STEP 1. Check the keyless entry function operation.
Check that the keyless entry system works normally.
Is the check result normal?
Go to Step 2.
Refer to inspection procedure 12 "keyless entry function does not work ."
 
STEP 2. Check the operation of the electric-folding door mirror.
Check that the electric folding door mirrors work normally.
Is the check result normal?
Go to Step 3.
Refer to GROUP 51 - Troubleshooting .
 
STEP 3. Check the customization
Use the customization function to check that the "Multi mode" has been set to other than "Disabled."
Vehicles with electric retractable remote controlled door mirrors
  • D/M: O and C.
Is it set to other than "disabled"?
Go to Step 4.
Use the customization function to set the "Multi mode" to other than "Disabled" (Refer to ).
 
STEP 4. M.U.T.-III diagnostic trouble code
Check if any diagnostic trouble code is set in the KOS-ECU.
Is the diagnostic trouble code set?
Refer to diagnostic trouble code chart .
Go to Step 5.
 
STEP 5. Check of the troubles
Check that the multimode keyless entry function works normally.
Is the check result normal?
Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Deal with Intermittent Malfunction ).
Replace ETACS-ECU. After the replacement, perform the coding.