Inspection Procedure 9

Inspection Procedure 9: Power Door Locks With Selective Unlocking Does Not Work.

CAUTION: Before replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.

COMMENT ON TROUBLE SYMPTOM
If the keyless entry system works normally and only the power door locks with selective unlocking does not work normally, ETACS-ECU may be defective. In addition, it is possible that the function has been disabled by using the customization function.

PROBABLE CAUSES
- Malfunction of ETACS-ECU
- Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE

STEP 1. Check the customization

Q: Are the power door locks with selective unlocking enabled by the customization function?

YES : Go to Step 2.

NO : Set the power door locks with selective unlocking to "Enabled" by using the customization function. Customization Function

STEP 2. Keyless entry system operation check

Press the unlock button of the transmitter and check that only the driver's door is unlocked. Then, press the unlock button once again within 2 seconds after that to check that the front passenger's door and rear doors are unlocked.

Q: Does the keyless entry system work normally?

YES : Go to Step 3.

NO (Only the driver's door is not unlocked.): Replace the ETACS-ECU.

NO (The driver's door, front passenger's door and rear doors are not unlocked.): Refer to Inspection Procedure 5: "Keyless entry system does not work." Inspection Procedure 5

STEP 3. Check of the troubles

Check that the power door locks with selective unlocking works normally.

Q: Is the check result normal?

YES : Intermittent malfunction.

NO : Replace ETACS-ECU.