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INSPECTION PROCEDURE 6: Keyless entry system-linked fold/unfold function does not work normally.
 
 
cautionBefore replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
 
 
CIRCUIT OPERATION
The ETACS-ECU operates this function in accordance with the keyless entry transmitter input signals.
 
 
 
TECHNICAL DESCRIPTION (COMMENT)
If this function does not work normally, keyless entry transmitter input signal circuit or the ETACS-ECU may be defective. Also, with the configuration function, the door mirrors may be set other than to the keyless entry interlock fold/unfold function.
 
 
 
TROUBLESHOOTING HINTS
  • Defective keyless entry transmitter
  • Malfunction of the ETACS-ECU
  • Damaged wiring harness and connectors
 
 
 
 
DIAGNOSIS
STEP 1. Check the ETACS configuration function.
Use the ETACS configuration function to confirm that "Auto fold mirror" is set to "OPN/CLS Keyless".
Is the check result normal?
Go to Step 2.
Use the ETACS configuration function to set "Auto fold mirror" to "OPN/CLS Keyless" (Refer to ).
 
STEP 2. Check the keyless entry operation.
Check that the keyless entry system works normally.
Is the check result normal?
Go to Step 3.
Refer to GROUP 42B (KOS) - Inspection Procedure 12 "Keyless entry system does not work." or GROUP 42C (WCM), Inspection Procedure 5 "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.
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.