INSPECTION PROCEDURE B-5: The Power Window Timer Function does not work Normally. <Not Using SWS Monitor>


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

OPERATION




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

COMMENTS ON TROUBLE SYMPTOM



PROBABLE CAUSES



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

DIAGNOSTIC PROCEDURE


STEP 1. Check the power window main switch.



Q. Is the check result normal?





STEP 2. Check the power supply circuit.



Q. Is the check result normal?





STEP 3. Pulse check



System switch
 Check conditions
Ignition switch (IG1)
 When turned from ACC to ON
Driver’s door switch
 When the driver’s door is opened
OK: The M.U.T.-III sounds or the voltmeter needle fluctuates.

Q. Are the check result normal?







STEP 4. Retest the system.



Q. Is the check result normal?