INSPECTION PROCEDURE C-3: Relevant power window(s) does not work by means of the front and rear passenger’s power window sub switches.

COMMENTS ON TROUBLE SYMPTOM

If the front passenger’s or rear power window(s) do not work by means of the respective power window sub switch, a malfunction of the power window sub switch or the power window motor is suspected. Also, the power window lock switch ON signal may be sent from the power window main switch, because the power window lock switch of the power window main switch is ON, or the power window main switch has a malfunction.

PROBABLE CAUSES

Malfunction of front passenger’s or rear passenger’s power window sub switch(es)
Malfunction of front passenger’s or rear passenger’s power window motor(s)
Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE

STEP 1. Check the power window main switch.

Check that the power window lock switch is turned off.

Q. Is the check result normal?

Go to Step 2.

Turn off the power window lock switch.

STEP 2. Determine a trouble spot.

Q. Which power window does not work?

Front passenger’s door

: Go to Step 3.

Rear right door

: Go to Step 9.

Rear left door

: Go to Step 15.

STEP 3. Check the front power window sub switch.

Check that the front power window sub switch works normally. Refer to Power Window Sub Switch Continuity Check

Q. Is the check result normal?

Go to Step 4.

Replace the front power window sub switch.

STEP 4. Check the front power window motor (RH <LH driver vehicles>, LH <RH drive vehicles>).

Check that the front power window motor (RH <LH driver vehicles>, LH <RH drive vehicles>) works normally. Refer to Power Window Motor Continuity Check

Q. Is the check result normal?

Go to Step 5.

Replace the front power window motor (passenger’s side).

STEP 5. Voltage measurement at front power window sub switch connector (ON line terminal).

(1)Disconnect the connector, and measure at the wiring harness side.

(2)Turn the ignition switch to the ON position.

(3)Measure the voltage between the front power window sub switch connector (ON line terminal) and body earth.
OK: System voltage

Q. Is the check result normal?

Go to Step 7.

Go to Step 6.

STEP 6. Check of open circuit in PWM line between ETACS-ECU connector and front power window sub switch connector.

Q. Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction

Repair the connector(s) or wiring harness.

STEP 7. Check of short to power supply, short to earth, and open circuit in input/output line between front power window sub switch connector and front power window motor (RH <LH driver vehicles>, LH <RH drive vehicles>) connector.

Q. Is the check result normal?

Go to Step 8.

Repair the connector(s) or wiring harness.

STEP 8. Retest the system.

(1)Replace the front power window sub switch.

(2)Check that the front passenger’s door power window can be operated by the front power window sub switch.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction

Replace the front power window motor (RH <LH driver vehicles>, LH <RH drive vehicles>).

STEP 9. Check the rear power window sub switch (RH).

Check that the rear power window sub switch (RH) works normally. Refer to Power Window Sub Switch Continuity Check

Q. Is the check result normal?

Go to Step 10.

Replace the rear power window sub switch (RH).

STEP 10. Check the rear power window motor (RH).

Check that the rear power window motor (RH) works normally. Refer to Power Window Motor Continuity Check

Q. Is the check result normal?

Go to Step 11.

Replace the rear power window motor (RH).

STEP 11. Voltage measurement at rear power window sub switch (RH) connector (ON line terminal).

(1)Disconnect the connector, and measure at the wiring harness side.

(2)Turn the ignition switch to the ON position.

(3)Measure the voltage between the rear power window sub switch (RH) connector (ON line terminal) and body earth.
OK: System voltage

Q. Is the check result normal?

Go to Step 13.

Go to Step 12.

STEP 12. Check of open circuit in PWS line between ETACS-ECU connector and rear power window sub switch (RH) connector.

Q. Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction

Repair the connector(s) or wiring harness.

STEP 13. Check of short to power supply, short to earth, and open circuit in input/output line between rear power window sub switch (RH) connector and rear power window motor (RH) connector.

Q. Is the check result normal?

Go to Step 14.

Repair the connector(s) or wiring harness.

STEP 14. Retest the system.

(1)Replace the rear power window sub switch (RH).

(2)Check that the rear right door power window can be operated by the rear power window sub switch (RH).

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction

Replace the rear power window motor (RH).

STEP 15. Check the rear power window sub switch (LH).

Check that the rear power window sub switch (LH) works normally. Refer to Power Window Sub Switch Continuity Check

Q. Is the check result normal?

Go to Step 16.

Replace the rear power window sub switch (LH).

STEP 16. Check the rear power window motor (LH).

Check that the rear power window motor (LH) works normally. Refer to Power Window Motor Continuity Check

Q. Is the check result normal?

Go to Step 17.

Replace the rear power window motor (LH).

STEP 17. Voltage measurement at rear power window sub switch (LH) connector (ON line terminal).

(1)Disconnect the connector, and measure at the wiring harness side.

(2)Turn the ignition switch to the ON position.

(3)Measure the voltage between the rear power window sub switch (LH) connector (ON line terminal) and body earth.
OK: System voltage

Q. Is the check result normal?

Go to Step 19.

Go to Step 18.

STEP 18. Check of open circuit in PWS line between ETACS-ECU connector and rear power window sub switch (LH) connector.

Q. Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction

Repair the connector(s) or wiring harness.

STEP 19. Check of short to power supply, short to earth, and open circuit in input/output line between rear power window sub switch (LH) connector and rear power window motor (LH) connector.

Q. Is the check result normal?

Go to Step 20.

Repair the connector(s) or wiring harness.

STEP 20. Retest the system.

(1)Replace the rear power window sub switch (LH).

(2)Check that the rear left door power window can be operated by the rear power window sub switch (LH).

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction

Replace the rear power window motor (LH).