SYMPTOM TROUBLESHOOTING CHART [POWER WINDOW SYSTEMS (AUTO-OPEN/CLOSE FUNCTION)]
| No. | TROUBLESHOOTING ITEM | Action |
|---|---|---|
| 1 | Door glass does not move up and down in automatic mode | See NO. 1 DOOR GLASS DOES NOT MOVE UP AND DOWN IN AUTOMATIC MODE [POWER WINDOW SYSTEMS (AUTO-OPEN/CLOSE FUNCTION)] . |
| 2 | Door glass does not reverse, even when encountering a foreign object in its path. | See NO. 2 DOOR GLASS DOES NOT REVERSE, EVEN WHEN ENCOUNTERING A FOREIGN OBJECT IN IT IS PATH [POWER WINDOW SYSTEMS (AUTO-OPEN/CLOSE FUNCTION)] . |
| 3 | Door glass reverse even when encountering a foreign object while it is moving up in automatic mode. | See NO. 3 DOOR GLASS REVERSE EVEN WHEN ENCOUNTERING A FOREIGN OBJECT WHILE IT IS MOVING UP IN AUTOMATIC MODE [POWER WINDOW SYSTEMS (AUTO-OPEN/CLOSE FUNCTION)] . |
| 4 | Abnormal noise during the power window operation | See NO. 4 ABNORMAL NOISE WHEN THE DOOR GLASS IS OPENING OR CLOSING [POWER WINDOW SYSTEMS (AUTO-OPEN/CLOSE FUNCTION)] . |
SYMPTOM TROUBLESHOOTING CHART
Scheme 2
Scheme 3
Scheme 4
- If a malfunction occurs or becomes worse while driving on a rough road or when the engine is vibrating, perform following the steps: NOTE: There are several reasons why vehicle or engine vibration could cause an electrical malfunction. Some of the things to inspect for: Connectors not fully seated. Wiring harnesses not having full play. Wires laying across brackets or moving parts. Wires routed too close to hot parts. An improperly routed, improperly clamped, or loose wiring harness can cause wiring to become pinched between parts. The connector joints, points of vibration, and places where wiring harnesses pass through the firewall, body panels are the major areas to be inspected. Inspect for DTCs or malfunctions by slightly shaking wiring harnesses and connectors that are suspected of causing the malfunction.
Scheme 5
- Inspect the connection condition of each female terminal.
- Insert the male terminal into the female terminal to inspect for looseness.
Manual Mode Function Inspection
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Turn the ignition switch to the ON position. Turn the power-cut switch to UNLOCK. Does each door glass move up and down in manual mode using the power window subswitch? | Yes | Go to the next step. |
| No | Inspect the following items: Power window main switch (power-cut switch system malfunction) Power window subswitch power supply fuses Power window subswitch ground wiring harness Power window subswitch power supply wiring harnesses Wiring harness between power window subswitch and power window motor Power window subswitch Power window motor Repair or replace the malfunctioning part, then go to the next step. | ||
| 2 | Does the driver-side door glass move up and down in manual mode using the power window main switch? | Yes | Go to the next step. |
| No | Inspect the following items: Power window main switch power supply fuses Power window main switch ground wiring harness Power window main switch power supply wiring harnesses Wiring harness between power window main switch and power window motor Power window main switch Repair or replace the malfunctioning part, then go to the next step. | ||
| 3 | Does each other door glass other than the driver-side door glass move up and down in manual mode using the power window main switch? | Yes | Go to the next step. |
| No | Perform the power window initialization procedure for any door glass that does not move up and down, and reinspect. See POWER WINDOW INITIALIZATION PROCEDURE . If it does not move up and down upon reinspection, inspect the following: Wiring harness between power window main switch and subswitch Repair or replace the malfunctioning part, then go to the next step. | ||
| 4 | Turn the power-cut switch to LOCK. Push/pull the power window main switch (switches for all windows in manual mode). Does only driver-side front door glass move up and down? | Yes | Manual mode function is normal. Go to the automatic mode function inspection. |
| No | Replace the power window main switch, then go to the automatic mode function inspection (power-cut switch system malfunction). | ||
DIAGNOSTIC PROCEDURE
Automatic Mode Function Inspection
Note. Perform the following inspection for the power window main switch and the power window subswitches for each window.
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Turn the ignition switch to the ON position. Operate the power window switch in automatic mode. Does the door glass move up and down in automatic mode? | Yes | Go to the next step. |
| No | Door glass does not move up and down in automatic mode: Go to Step 1 of NO. 1 DOOR GLASS DOES NOT MOVE UP AND DOWN IN AUTOMATIC MODE. Door glass moves up and down in automatic mode, but door glass reverses: Go to Step 1 of NO. 3 DOOR GLASS REVERSES EVEN THOUGH THE GLASS DOES NOT ENCOUNTER A FOREIGN OBJECT WHILE IT IS MOVING UP IN AUTOMATIC MODE. | ||
| 2 | Gently pull the power window switch while the door glass is moving down in automatic mode. Does the glass stop? | Yes | Go to the next step. |
| No | Replace the power window switch, then go to the AUTOMATIC DOOR GLASS RETURN FUNCTION INSPECTION . | ||
| 3 | Gently press the power window switch while the door glass is moving up in automatic mode. Does the glass stop? | Yes | Automatic mode function is normal. Go to the AUTOMATIC DOOR GLASS RETURN FUNCTION INSPECTION . |
| No | Replace the power window switch, then go to the AUTOMATIC DOOR GLASS RETURN FUNCTION INSPECTION . | ||
DIAGNOSTIC PROCEDURE
Automatic Door Glass Return Function Inspection
Note. Perform the following inspection for the power window main switch and the power window subswitches for each front door window. With the switch held at auto-up, the front door glass does not automatically reverse even when a foreign object is encountered.
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Turn the ignition switch to the ON position. Lower the door glass completely. Use the power window switch to close the door glass in automatic mode. Does the door glass automatically reverse even though the glass does not encounter a foreign object while it is moving up in automatic mode? | Yes | Go to Step 1 of NO. 3 DOOR GLASS REVERSES EVEN THOUGH THE GLASS DOES NOT ENCOUNTER A FOREIGN OBJECT WHILE IT IS MOVING UP IN AUTOMATIC MODE. |
| No | Go to the next step. | ||
| 2 | Lower the door glass completely. Take a hammer and hold it against the inside of the top of the window frame so that the door glass will hit its handle when it is closed. Raise the door glass using automatic mode. When the door glass hits the hammer handle, does it immediately reverse and move down to approx. 200 mm {7.87 in} from the completely closed position? | Yes | Automatic door glass return function inspection is normal. Go to the IG OFF timer function inspection. |
| No | Go to Step 1 of NO. 2 DOOR GLASS DOES NOT REVERSE, EVEN WHEN ENCOUNTERING A FOREIGN OBJECT IN ITS PATH. | ||
DIAGNOSTIC PROCEDURE
IG OFF Timer Function Inspection
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Close all doors. Turn the ignition switch to the ON position. In automatic mode, push down the power window main switch for the driver-side front door glass. The door glass should move down within approx. 43 s after ignition switch off. In manual mode (finger continuously depressing the power window main switch), the door glass should move down within approx. 43 s after ignition switch off. Does the driver-side front door glass move down? | Yes | Go to the next step. |
| No | Perform the driver-side power window initialization procedure, and reinspect. See POWER WINDOW INITIALIZATION PROCEDURE . If it does not move up and down upon reinspection, inspect the following: Wiring harness for the door open/close signal system Latch switch Repair or replace the malfunctioning part, and reinspect. If operation is not normal, replace the power window main switch, and then go to the next step. | ||
| 2 | Turn the ignition switch to the ON position. In automatic mode, pull up the power window main switch for the driver-side front door glass. The door glass does not move up within approx. 43 s after ignition switch off. Verify that driver-side front door glass does not operate. Does the driver-side front door glass move up? | Yes | Perform the driver-side power window initialization procedure, and reinspect. See POWER WINDOW INITIALIZATION PROCEDURE . If operation is not normal, replace the power window main switch, then go to the next step. |
| No | Go to the next step. | ||
| 3 | Turn the ignition switch to the ON position. Lower the driver-side front door glass completely. Take a hammer and hold it against the inside of the top of the door glass frame so that the door glass will hit its handle when it is closing. Raise the door glass using manual mode. When the door glass hits the hammer handle, does it immediately reverse and move down to approx. 200 mm {7.87 in} from the completely closed position? | Yes | Go to the next step. |
| No | Perform the driver-side power window initialization procedure, and reinspect. See POWER WINDOW INITIALIZATION PROCEDURE . If operation is not normal, replace the power window main switch, then go to the next step. | ||
| 4 | Open front door. Turn the ignition switch to the ON position. Push/pull the power window main switch for the door glass within approx. 43 s after ignition switch off. Verify that the door glass does not move up or down. Does the door glass move up or down? | Yes | Inspect the door switch and related wiring harness. If above parts are normal, replace the power window main switch, then go to the next step. If the above parts have any malfunction, repair or replace the malfunction part, then go to the next step. |
| No | Go to the next step. | ||
| 5 | Close front doors. Turn the ignition switch to the ON position. Push/pull the power window main switch for door glass after approx. 60 s after ignition switch off. Verify that the door glass does not move up or down. Does the door glass move up or down? | Yes | Perform the driver-side power window initialization procedure, and reinspect. See POWER WINDOW INITIALIZATION PROCEDURE . If operation is not normal, replace the power window main switch, then go to the two-step down function inspection. |
| No | The IG OFF timer function is normal. Go to the two-step down function inspection. | ||
DIAGNOSTIC PROCEDURE
Two-step Down Function Inspection
- The distance the door glass opens can be changed using the two-step down function (approx. 20-100 mm {0.79-3.93 in}).
- The two-step down function can be made inoperative. The function is operative at the initial setting.
- The two-step down function does not function during IG OFF timer. NOTE: Perform the following inspection for the power window main switch and the power window subswitches for each front window.
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Turn the ignition switch to the ON position. Raise door glass completely. When the door glass is lowered using manual mode, does it move down to approx. 30 mm {1.2 in} from the completely closed position and stop for 1 s? This inspection cannot be performed during IG OFF timer function operation. | Yes | Two-step down function is normal. Reinspect malfunction symptoms. |
| No | Perform the power window initial setting procedure and verify auto-up/down operation. See POWER WINDOW INITIALIZATION PROCEDURE . If the automatic function does not operate, go to AUTOMATIC DOOR GLASS RETURN FUNCTION INSPECTION . If the automatic function operates but the two-step down function does not, replace the power window switch. | ||
DIAGNOSTIC PROCEDURE
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 SYSTEMS (AUTO-OPEN/CLOSE FUNCTION)] . Does the two-step down function operate properly? | Yes | Replace the power window main switch. See POWER WINDOW MAIN SWITCH INSPECTION . |
| 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: A (sensor 1 signal) B (sensor 2 signal) Is the voltage approx.5 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 (4-pin connector) terminals: B (sensor 1 signal) A (sensor 2 signal) Is the voltage approx.5 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
| 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 initialization 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
| 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
Scheme 6
| Noise type | Time of occurrence | Possible cause | Location of noise | Action |
|---|---|---|---|---|
| Clanking noise | Door glass begins to move | Insufficiently tightened installation screw between the door glass and carrier plate. | Between door glass lower edge and carrier plate. | Securely tighten the installation screw. |
| Groaning noise (Sound increases due to use) | While door glass is operating | Vibration caused by wear on the resin part from cable twisting due to use of the power window regulator. NOTE: Noise does not occur if a roller is equipped to power window regulator resin part. | Power window regulator. | Replace the power window regulator. See FRONT POWER WINDOW REGULATOR REMOVAL/INSTALLATION . See REAR POWER WINDOW REGULATOR REMOVAL/INSTALLATION . |
| Whining noise | Gear inside power window motor is deformed due to use. | Gear in power window motor | Replace the power window motor. See POWER WINDOW MOTOR REMOVAL/INSTALLATION . | |
| Clicking noise (Periodic noise) |
| NOTE |
|---|
| Noise does not occur if a roller is equipped to power window regulator resin part. |
DIAGNOSTIC PROCEDURE
