INSPECTION PROCEDURE D-6: The power window timer function does not work normally. <Vehicles for Australia and New Zealand>


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

OPERATION
The ETACS-ECU operates this function in accordance with the input signals below.

  • Ignition switch (IG1)
  • Driver’s door switch
  • Passenger’s door switch

COMMENTS ON TROUBLE SYMPTOM
If the power window timer function does not work normally, these input signal circuit(s) or the ETACS-ECU may be defective.

POSSIBLE CAUSES

  • Malfunction of the driver’s door switch
  • Malfunction of the passenger’s door switch
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors

DIAGNOSTIC PROCEDURE

Step 1. Check the power window main switch.
Check that all of the front passenger’s and rear door power windows can operate by means of the power window main switch.

Q. Is the check result normal?
Go to Step 2.
Refer to Inspection Procedure D-1 "Power windows do not work at all ."

Step 2.ECU check by using the SWS monitor
Check that the power supply and earth lines to the ETACS-ECU and the SWS communication lines are normal.

  • Turn the ignition switch from the ON to the OFF position.
ECUS TO BE CHECKED
  • ETACS ECU
OK: "OK" are displayed for all the items

Q. Is the check result normal?
Go to Step 3.
Refer to Inspection Procedure A-3 "Communication with ETACS-ECU is not possible ."

Step 3. SWS monitor data list
Check the SWS communication signal, which are related to the power window timer function.
<Selected item> ETACS ECU
  • Ignition switch: OFF
  • Driver’s door: Close → Open
Item No.
 Item name
 Normal condition
Item 30
 IG SW(IG1)
 OFF
Item 32
 DR DOOR SW
 from OFF to ON
OK: Normal conditions are displayed for all the items

Q. Are the check result normal?
Normal conditions are displayed for all the items. : Go to Step 4.
Normal condition is not displayed for item No.30. : Refer to inspection procedure P-2 "The ignition switch (IG1) signal is not received ."
Normal condition is not displayed for item No.32. : Refer to inspection procedure P-5 "The driver’s door switch signal is not received <LH drive vehicles> or <RH drive vehicles>."

Step 4. ETACS switch data by using the SWS monitor
Check the SWS communication signal, which are related to the power window timer function.

  • Passenger’s door: Close → Open
Item No.
 Item name
 Normal condition
Item 05
 PASS DOOR SW
 from OFF to ON
OK: Normal condition is displayed.

Q. Is the check result normal?
Go to Step 5.
Refer to inspection procedure P-12 "All the door switch signals are not received ."

Step 5. Retest the system.
Check that the power window timer function works normally.

Q. Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).
Replace the ETACS-ECU.