SYMPTOM TROUBLESHOOTING CHART [POWER WINDOW SYSTEM]
| No. | Malfunction symptom |
|---|---|
| 1 | NO.1 THE AUTO OPEN/CLOSE FUNCTION ON THE DRIVER'S SIDE POWER WINDOW IS INOPERATIVE [POWER WINDOW SYSTEM] |
| 2 | NO.2 THE DRIVER'S SIDE POWER WINDOW IS INOPERATIVE [POWER WINDOW SYSTEM] |
| 3 | NO.3 ALL POWER WINDOWS OTHER THAN DRIVER'S SIDE DO NOT OPERATE USING THE POWER WINDOW SUBSWITCH [POWER WINDOW SYSTEM] |
| 4 | NO.4 ALL POWER WINDOWS OTHER THAN DRIVER'S SIDE DO NOT OPERATE USING THE POWER WINDOW MAIN SWITCH [POWER WINDOW SYSTEM] |
| 5 | NO.5 ALL POWER WINDOWS ARE INOPERATIVE [POWER WINDOW SYSTEM] |
| 6 | NO.6 DOOR GLASS REVERSES EVEN THOUGH THE GLASS DOES NOT ENCOUNTER A FOREIGN OBJECT WHILE IT IS MOVING UP IN AUTOMATIC MODE [POWER WINDOW SYSTEM] |
| 7 | NO.7 ABNORMAL NOISE WHILE THE DOOR GLASS IS OPENING OR CLOSING [POWER WINDOW SYSTEM] |
Power Window System Troubleshooting Questionnaire. Scheme 3
Manual Open/close Function Inspection
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Switch the ignition to ON. Operate the power window using the manual open/close function on the power window main switch. Does the power window operate properly? | Yes | Go to the next step. |
| No | Inspect the power window main switch and the wiring harness. Repair or replace malfunctioning parts. | ||
| 2 | Set the power cut switch to the UNLOCK position. Operate the power window using the power window subswitch. Does the power window operate properly? | Yes | Go to the next step. |
| No | Inspect the power window subswitch and the wiring harness. Repair or replace malfunctioning parts. | ||
| 3 | Set the power cut switch to the LOCK position. Operate all power windows other than the driver side. Does the power window operate properly? | Yes | Inspect the power cut switch and the wiring harness. Replace the power window main switch. |
| No | Manual open/close function is normal. Perform the auto open/close function inspection. | ||
Auto Open/Close Function (Driver's Side) Inspection
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Switch the ignition to ON. Operate the power window using the auto open /close function on the power window main switch. Does the power window operate properly? | Yes | Go to the next step. |
| No | If the power window automatically opens during the closing operation: Go to NO.6 DOOR GLASS REVERSES EVEN THOUGH THE GLASS DOES NOT ENCOUNTER A FOREIGN OBJECT WHILE IT IS MOVING UP IN AUTOMATIC MODE [POWER WINDOW SYSTEM] . Others: Go to NO.1 THE AUTO OPEN/CLOSE FUNCTION ON THE DRIVER'S SIDE POWER WINDOW IS INOPERATIVE [POWER WINDOW SYSTEM] . | ||
| 2 | Operate the power window main switch to the close position while the power window is opening. Does the power window operation stop? | Yes | Go to the next step. |
| No | Replace the power window main switch (power window control unit is malfunctioning.) | ||
| 3 | Operate the power window main switch to the open position while the power window is closing. Does the power window operation stop? | Yes | Auto open/close function is normal. Perform the IG-OFF timer function inspection. |
| No | Replace the power window main switch (power window control unit is malfunctioning.) | ||
IG-OFF Timer Function Inspection
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Close all doors. Switch the ignition from the ON to the off. Operate the power window main switch within 43 seconds after turning the ignition switch to the LOCK position. Does the power window operate? | Yes | Go to the next step. |
| No | Inspect the door switches and related wiring harness. If above parts are okay, replace the power window main switch, then go to the next step. If above parts are incorrect repair or replace malfunction part(s), then go to the next step. | ||
| 2 | Open any door. Switch the ignition from the ON to the off. Operate the power window main switch within 43 seconds after turning the ignition switch to the LOCK position. Does the power window operate? | Yes | Inspect the door switches and related wiring harness. If above parts are okay, replace the power window main switch, then go to the next step. If above parts are incorrect repair or replace malfunction part(s), then go to the next step. |
| No | Go to the next step. | ||
| 3 | Close all doors. Switch the ignition from the ON to the off. Operate the power window main switch within 60 seconds after turning the ignition switch to the LOCK position. Does the power window operate? | Yes | Replace the power window main switch (power window control unit is malfunctioning.) |
| No | IG-OFF timer function operation is normal. Perform the auto reverse pinch protection function inspection. | ||
Auto Reverse Pinch Protection Function Inspection
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Switch the ignition to ON. Fully open the driver's side power window. Set the hammer (thickness: 10 mm {0.39 in} or more) as shown below. Then, close the power window. Verify that the power window opens 200 mm {7.87 in} after contacting the hammer and the operation stops. Does auto reverse pinch protection function operate properly? | Yes | Auto reverse pinch protection function is normal. |
| No | Go to the next step. | ||
| 2 | Does power window open before contacting the hammer? | Yes | Go to NO.6 DOOR GLASS REVERSES EVEN THOUGH THE GLASS DOES NOT ENCOUNTER A FOREIGN OBJECT WHILE IT IS MOVING UP IN AUTOMATIC MODE [POWER WINDOW SYSTEM] . |
| No | Initialize the power window main switch. NOTE: Before initializing the power window main switch, cut off the power supply to the power window main switch for 60 seconds. Then, reconnect it again after 60 seconds: Disconnect the negative battery cable. Disconnect the power window main switch connector. Remove the fuse for the power window system. | ||
| NOTE |
|---|
| Before initializing the power window main switch, cut off the power supply to the power window main switch for 60 seconds. Then, reconnect it again after 60 seconds: Disconnect the negative battery cable. Disconnect the power window main switch connector. Remove the fuse for the power window system. |
Setting Hammer Of Power Window (Thickness). Scheme 4
Diagnostic Procedure
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Switch the ignition to off for 3 min . Switch the ignition to ON. 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 | 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 .) | ||
| 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 main switch terminals: 1D (sensor 1 signal) 1H (sensor 2 signal) Is the voltage approx.12 V ? | Yes | Replace the power window 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. | ||
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Switch the ignition to ON. Does the LED on the power window main switch illuminate? | Yes | Go to Step 6. |
| No | Go to the next step. | ||
| 2 | Operate all power windows other than the driver's side window using the power window main switch. Does the power window operate properly? | Yes | Go to the next step. |
| No | Inspect for an open or short circuit in the following wiring harnesses. Inspect the connector connections (damage/pulled-out pins, corrosion): P.WIND 30 A fuse-Power window main switch terminal 1M Power window main switch terminal 1B-ground. Repair or replace if necessary. | ||
| 3 | Is the P.WIND 30 A fuse normal? | Yes | Go to Step 5. |
| No | Inspect the following: Short circuit in B+ power supply wiring harness Short circuit in power window motor Repair or replace if necessary. Replace with the appropriate standard fuse. Then, go to the next step. | ||
| 4 | Initialize the power window system. Operate the power window system. Do the power windows operate properly? | Yes | Troubleshooting is completed. |
| No | Re-confirm the symptom and go to Step 1. | ||
| 5 | Measure the voltage at the power window main switch terminal 1M. Is the voltage B+? | Yes | Replace the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .) |
| No | Inspect for an open or short circuit in the power window main switch wiring harness (battery power supply). Inspect the power window main switch connector connection. (damage/pulled-out pins, corrosion) Repair or replace if necessary. | ||
| 6 | Measure the voltage at the power window main switch. (power window motor output terminal) while operating the power window using the power window main switch. Is the voltage B+? (Open: terminal 1L/ close: terminal 1J) | Yes | Go to the next step. |
| No | Replace the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .) | ||
| 7 | Measure the voltage at the power window motor. (battery power supply terminal) while operating the power window using the power window motor. Is the voltage B+? (Open: terminal F/ close: terminal E) | Yes | Go to the next step. |
| No | Inspect for an open or short circuit in the wiring harness between the power window main switch and the power window motor. Inspect the power window main switch and power window motor connector connections. (damage/pulled-out pins, corrosion) Repair or replace if necessary. | ||
| 8 | Operate the driver's side power window using the power window main switch. Does the power window motor operate (rotate)? CAUTION: If the power window motor temperature is high, the motor may not rotate due to the motor internal bimetal function. Leave it untouched for about 3 min to cool it down, then reinspect. | Yes | Go to the next step. |
| No | Replace the power window motor. (See POWER WINDOW MOTOR REMOVAL/INSTALLATION .) | ||
| 9 | Remove the door glass from the carrier plate. Make sure that the door glass moves smoothly using your hand. Does the door glass move smoothly? | Yes | Replace the power window regulator. (See FRONT POWER WINDOW REGULATOR REMOVAL/INSTALLATION .) (See REAR POWER WINDOW REGULATOR REMOVAL/INSTALLATION .) |
| No | Inspect for a bent regulator guide or other possible malfunction. If normal, replace the door glass run-channel. | ||
| CAUTION |
|---|
| If the power window motor temperature is high, the motor may not rotate due to the motor internal bimetal function. Leave it untouched for about 3 min to cool it down, then reinspect. |
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Switch the ignition to ON. Set the power cut-switch to the UNLOCK position. Measure the voltage at the power window subswitch terminal B. Is the voltage B+? | Yes | Replace the power window subswitch. (See POWER WINDOW SUBSWITCH REMOVAL/INSTALLATION .) |
| No | Inspect for an open or short circuit in the wiring harness between the power window main switch and the power window subswitch. Inspect the power window subswitch connector connection. (damage/pulled-out pins, corrosion) Repair or replace if necessary. | ||
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Switch the ignition to ON. Set the power cut-switch to the UNLOCK position. Operate all power windows other than the driver's side using the power window main switch. Do any power windows operate? | Yes | Replace the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .) |
| No | Inspect for an open or short circuit in the power window main switch wiring harness (battery power supply). Inspect the power window main switch connector connection. (damage/pulled-out pins, corrosion) Repair or replace if necessary. | ||
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | Switch the ignition to ON. Set the power cut-off switch to the UNLOCK position. Inspect the power window system operation again. Does the system operate properly? | Yes | System is now normal. (power cut-off switch is not set properly.) |
| No | Go to the next step. | ||
| 2 | Operate all power windows other than driver's side window using the power window main switch. Does any power window operate? | Yes | Go to Step 6. |
| No | Go to the next step. | ||
| 3 | Operate the driver's side power window using the power window main switch. Does the power window operate? | Yes | Go to the next step. |
| No | Inspect for an open circuit in the wiring harness between the power window main switch and the body ground. Inspect the power window main switch connector connection. (damage/pulled-out pins, corrosion) Repair or replace if necessary | ||
| 4 | Is the P.WIND 30 A fuse normal? | Yes | Replace with the appropriate standard fuse. If the fuse is melted, inspect the wiring harness for a short to ground. Repair or replace the wiring harness, then replace the fuse. |
| No | Go to the next step. | ||
| 5 | Measure the voltage at the power window main switch terminal 1M. Is the voltage B+? | Yes | Replace the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .) |
| No | Inspect for an open or short circuit in the power window main switch wiring harness (battery power supply). Inspect the power window main switch connector connection. (damage/pulled-out pins, corrosion) Repair or replace if necessary. | ||
| 6 | Identify the inoperative power window. Measure the voltage at the suspect power window motor (battery power supply) while operating the power window motor using the suspect power window subswitch Is the voltage B+? (Open: terminal F/ close: terminal E) | Yes | Go to the next step. |
| No | Go to Step 9. | ||
| 7 | Operate the power window using the power window subswitch Does the power window motor operate (rotate)? CAUTION: If the power window motor temperature is high, the motor may not rotate due to the motor internal bimetal function. Leave it untouched for about 3 min to cool it down, then reinspect. | Yes | Go to the next step. |
| No | Replace the power window motor. (See POWER WINDOW MOTOR REMOVAL/INSTALLATION .) | ||
| 8 | Remove the door glass from the carrier plate. Make sure that the door glass moves smoothly using your hand. Does the door glass move smoothly? | Yes | Replace the power window regulator guide. |
| No | Inspect for a bent regulator guide or other possible malfunction. If normal, replace the glass run channel. | ||
| 9 | Measure the voltage at the power window subswitch (power window motor output) while operating the power window subswitch. Is the voltage B+? (Open: terminal C/ close: terminal E) | Yes | Inspect for an open or short circuit in the wiring harness between the power window subswitch and power window motor. Inspect the power window subswitch and power window motor connector connections. (damage/pulled-out pins, corrosion) Repair or replace if necessary. |
| No | Go to the next step. | ||
| 10 | NOTE: Do not operate the power window subswitch during the following inspection. Inspect the continuity between power window subswitch terminal A (vehicle harness-side) and ground. Is there continuity? | Yes | Go to the next step. |
| No | Inspect for an open or short circuit in the power window subswitch wiring harness. Inspect the power window subswitch connector connection. (damage/pulled-out pins, corrosion) Repair or replace if necessary. Then go to Step 12. | ||
| 11 | NOTE: Do not operate the power window subswitch during the following inspection. Inspect the continuity between power window subswitch terminal D and ground. Is there continuity? | Yes | Replace the power window subswitch. (See POWER WINDOW SUBSWITCH REMOVAL/INSTALLATION .) |
| No | Inspect for an open or short circuit in the power window subswitch wiring harness. Inspect the power window subswitch connector connection. (damage/pulled-out pins, corrosion) Repair or replace if necessary. Then go to Step 13. | ||
| 12 | NOTE: Do not operate the power window main switch during the following inspection. Inspect the continuity between power window main switch terminal (up-side 2L, 1I, 1C) and ground. Is there continuity? | Yes | Go to the next step. |
| No | Replace the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .) | ||
| 13 | NOTE: Do not operate the power window main switch during the following inspection. Inspect the continuity between power window main switch terminal (down-side 2K, 1G, 1E) and ground. Is there continuity? | Yes | Inspect for an open or short circuit in the wiring harness between the power window main switch and power window subswitch. Inspect the power window main switch and subswitch connector connections. (damage/pulled-out pins, corrosion) Repair or replace if necessary. |
| No | Replace the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .) | ||
| CAUTION |
|---|
| If the power window motor temperature is high, the motor may not rotate due to the motor internal bimetal function. Leave it untouched for about 3 min to cool it down, then reinspect. |
| NOTE |
|---|
| Do not operate the power window subswitch during the following inspection. |
| NOTE |
|---|
| Do not operate the power window subswitch during the following inspection. |
| NOTE |
|---|
| Do not operate the power window main switch during the following inspection. |
| NOTE |
|---|
| Do not operate the power window main switch during the following inspection. |
| 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. | ||
Identifying Tape On Rear Edge And Speed Change Position. Scheme 5
| 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 FRONT 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. |
