Power Window Initialization Procedure
- Turn the ignition switch to the ON position.
- Press the power window switch and fully open the suspect door glass.
- Pull up the power window main switch/sub switch to the manual-up position to fully close the suspect door glass, and keep holding the switch up at the position for approx. 2s.
Connector Terminal Check Method
- Inspect the connection condition of each female terminal.
- Insert the male terminal into the female terminal to inspect for looseness.
Scheme 6
No. 1 DOOR GLASS DOES NOT MOVE UP AND DOWN IN AUTOMATIC MODE POWER WINDOW SYSTEM (WITH EXTERIOR OPEN/CLOSE FUNCTION)
Note. Perform the following inspection for the power window system component parts of windows where the door glass cannot be operated automatically.
| 1 | Door glass does not move up and down in automatic mode |
|---|---|
| POSSIBLE CAUSE | Power window system in fail-safe function (Power window motor heat protection circuit is operating) No power supply to power window main switch Power window main switch malfunction (power window control unit malfunction, auto switch malfunction) Power window motor malfunction (Sensor inside motor malfunction) Malfunction in wiring harness between power window motor (sensor) and power window main switch |
DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Turn the ignition switch to the LOCK position for 3 min. Turn the ignition switch to ON position. Initialize the power window system. Operate the auto open/close function. Dose the power window operate properly? | Yes | System is normal. The power window system auto open/close function dose not operate temporarily for any of the following reasons: The power window switch is operated while the power window motor protection circuit (integrated in power window motor) is operating. The power window main switch power supply is cut off by disconnection of the negative battery cable or removing the fuse. |
| No | Go to the next step. | ||
| 2 | Turn the ignition switch to ON position. Inspect the two-step down operation. (See BASIC POWER WINDOW SYSTEM INSPECTION POWER WINDOW SYSTEM (WITH EXTERIOR OPEN/CLOSE FUNCTION) .) Does the two-step down function operate properly? | Yes | Replace the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .) |
| No | Go to the next step. | ||
| 3 | Does the sensor built into the power window motor send pulse signals while the power window motor is operating? Inspect the voltage at the following power window motor terminals: B (sensor 1 signal) A (sensor 2 signal) Is the voltage approx. 12 V? | Yes | Go to the next step. |
| No | Replace the power window motor. (See POWER WINDOW MOTOR INSPECTION .) | ||
| 4 | Does the sensor built into the power window motor send pulse signals while the power window motor is operating? Inspect the voltage at the following power window main switch terminals: O (sensor 1 signal) P (sensor 2 signal) Is the voltage approx.12 V? | Yes | Replace the power main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .) |
| No | Inspect for an open or short circuit in wiring between the power window motor (sensor) and the power window main switch. Inspect the connection of the power window motor and power window main switch connectors, (damaged/pulled-out pins, corrosion) Repair of replace necessary. | ||
DIAGNOSTIC PROCEDURE
No. 2 DOOR GLASS DOES NOT REVERSE, EVEN WHEN ENCOUNTERING A FOREIGN OBJECT IN IT IS PATH POWER WINDOW SYSTEM (WITH EXTERIOR OPEN/CLOSE FUNCTION)
Note. Perform the following inspection for the power window system component parts of the windows where the door glass does not reverse, even when encountering a foreign object in its path.
| 2 | Door glass does not reverse, even when encountering a foreign object in its path. |
|---|---|
| POSSIBLE CAUSE | Automatic window return range did not reset after battery disconnection: Step 2 |
DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | VERIFY CUSTOMER COMPLAINT Did the customer complain that the door glass did not reverse when near complete closed position? | Yes | The system is normal. Explain to the customer that automatic window return power window system does not operate when near complete closed position. |
| No | Go to the next step. | ||
| 2 | RESET REVERSE AREA STORED IN DOOR GLASS MOTOR Perform the power window system initial setting procedure. Did malfunction disappear? | Yes | Troubleshooting completed. Explain to the customer that misadjustment of automatic window return range was the problem. |
| No | Replace the power window switch. Verify auto-up/down operation and if the automatic function does not operate, go to Step 1 of NO. 1 DOOR GLASS DOES NOT MOVE UP AND DOWN IN AUTOMATIC MODE. If the automatic function operates, replace the power window switch. | ||
DIAGNOSTIC PROCEDURE
NO. 3 DOOR GLASS REVERSES EVEN THOUGH THE GLASS DOES NOT ENCOUNTER A FOREIGN OBJECT WHILE IT IS MOVING UP IN AUTOMATIC MODE POWER WINDOW SYSTEM (WITH EXTERIOR OPEN/CLOSE FUNCTION)
Note. Perform the following inspection for the power window system component parts of windows where the door glass reverses even though the glass does not encounter a foreign object while it is moving up in automatic mode.
DIAGNOSTIC PROCEDURE 3 Door glass reverses even though the glass does not encounter a foreign object while it is moving up in automatic mode. POSSIBLE CAUSE Extreme change in the sliding resistance of the glass while the door glass is closing. Improper installation of the acrylic door visor. Power window motor malfunction Object caught between the glass run channel and the door glass. Insufficient tightening of the door glass to the carrier plate. Glass run channel malfunction. Glass guide related malfunction. NOTE: The auto-reverse pinch protection function is a mechanism that automatically reverses (opens) the door glass while it is closing when the power window main switch detects the signal from the power window motor indicating that an object is obstructing the door glass movement. The auto-reverse pinch protection function may operate if the sliding resistance of the door glass increases causing the closing speed to decrease. If the door glass closing speed has changed, concentrate the inspection on the following locations: (Slip occurrence) If the door glass is slipping forward, inspect the front side of the glass guide or glass run channel. If the door glass is slipping rearward, inspect the rear side of the glass guide or glass run channel
Scheme 7
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | INSPECT MALFUNCTION SYMPTOM Does the malfunction symptom occur only under the following special conditions?: Driving over railroad tracks Driving on bumpy roads. Opening/closing the door. | Yes | The system is normal (Explain to the customer that this does not indicate a malfunction because the system is designed to reverse the door glass while it is closing if it receives vibration when the vehicle is crossing railroad tracks, driving on a bumpy road, or when the door is opened/closed.) |
| No | Go to the next step. | ||
| 2 | INSPECT ACRYLIC DOOR VISOR INSTALLATION CONDITION Is the acrylic door visor normal? | Yes | Go to the next step. |
| No | Install the side visor properly, then go to the next step. | ||
| 3 | INSPECT DOOR GLASS CLOSING SPEED Affix tape to the rear edge of the door glass as shown in the figure for placing marks (to facilitate seeing the door glass movement) Start the engine and idle it (to ensure a stabilized operational voltage.) Does the door glass hesitate only once while its closing? | Yes | Mark the point where the door glass closing speed changed, then go to Step 5. |
| No | Go to the next step. | ||
| 4 | REINSPECT DOOR GLASS CLOSING SPEED Does the door glass hesitate periodically (5-6 times) while it is closing? | Yes | Replace the power window motor, then go to Step 8 (See POWER WINDOW MOTOR REMOVAL/INSTALLATION .) |
| No | Go to Step 8. | ||
| 5 | INSPECT GLASS RUN CHANNEL AND DOOR GLASS SLIDING SURFACE Is there an object caught between the glass run channel and the door glass, or is there roughness on the sliding surface (rubber surface)? | Yes | Object is caught between glass run channel and door glass: Remove the object. Roughness on the sliding surface (rubber surface): Replace the glass run channel. After performing one of the above actions, reinspect. If the malfunction is not corrected, go to Step 3. |
| No | Go to the next step. | ||
| 6 | INSPECT TIGHTENING OF DOOR GLASS TO CARRIER PLATE Is it normal? | Yes | Go to the next step. |
| No | After tightening correctly, reinspect. If the malfunction is not corrected, go to Step 3. | ||
| 7 | INSPECT CONDITION OF GLASS RUN CHANNEL AND DOOR GLASS Is it normal? | Yes | Go to the next step. |
| No | Assemble the glass run channel and door glass securely, and reinspect. If the malfunction is not corrected, go to Step 3. | ||
| 8 | INSPECT DOOR GLASS CLOSING SPEED Does the door glass hesitate at any location? | Yes | Repeat the inspection from Step 3. |
| No | Troubleshooting completed. | ||
DIAGNOSTIC PROCEDURE
