No.1 DOOR GLASS DOES NOT MOVE UP AND DOWN IN AUTOMATIC MODE [POWER WINDOW SYSTEMS (AUTO-OPEN/CLOSE FUNCTION)]
id090360805700
1
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Door glass does not move up and down in automatic mode
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POSSIBLE CAUSE
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• Open circuit or short to power supply in sensor 1 signal, ground signal from wiring harness (between power window switch and power window motor), inner power window switch, or inner motor: Steps 3–6
• Open circuit or short to power supply/ground in sensor 2 signal from wiring harness (between power window switch and power window motor), inner power window switch, or inner motor: Steps 7–11
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Diagnostic procedure
STEP |
INSPECTION |
ACTION |
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1
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• Turn the ignition switch to LOCK position for 3 minutes.
• Turn the ignition switch to ON position.
• Initialize the power window system.
• Operate the auto open/close function.
• Does the power window operate properly?
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Yes
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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.
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No
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Go to the next step.
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2
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• 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)].)
• Dose the two-step down function operate properly?
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Yes
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Replace the power window main switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION.)
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No
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Go to the next step.
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3
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VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN POWER WINDOW SWITCH AND FRONT POWER WINDOW MOTOR) OR ELSEWHERE
• Turn the ignition switch to the ON position.
• Inspect the voltage at the following front power window switch terminals (sensor 1 signal):
• Does the voltage alternate between 0 V and approx.12 V when the door glass is moving up and down?
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Yes
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Go to Step 7.
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No
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Go to the next step.
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4
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VERIFY SENSOR 1 OUTPUT SIGNAL
• Turn the ignition switch to the ON position.
• Inspect the voltage at the following front power window motor terminals (sensor 1 signal):
• Is the voltage alternate between 0 V and approx.12 V when the door glass is moving up and down in manual mode?
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Yes
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Go to the next step.
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No
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Replace the power window motor, then go to Step 12.
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5
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INSPECT WIRING HARNESS BETWEEN POWER WINDOW SWITCH AND POWER WINDOW MOTOR FOR CONTINUITY
• Turn the ignition switch to the LOCK position.
• Disconnect the power window switch connector.
• Is there continuity between the following front power window switch terminals and front power window motor terminals?
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Yes
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Go to the next step.
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No
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Repair the wiring harness between the power window switch and power window motor, then go to Step 12.
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6
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VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN POWER WINDOW SWITCH AND POWER WINDOW MOTOR) OR POWER WINDOW SWITCH
• Turn the ignition switch to the ON position.
• Inspect the voltage at the following power window switch terminals:
• Is the voltage approx.12 V?
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Yes
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Repair the wiring harness between the suspect power window switch and power window motor, then go to Step 12.
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No
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Replace the suspect power window switch (open circuit or short to power supply in power window switch).
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7
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VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN POWER WINDOW SWITCH AND POWER WINDOW MOTOR) OR ELSEWHERE
• Is there continuity between the following power window switch terminals (wiring harness-side) and ground?
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Yes
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Replace the wiring harness between the power window switch and power window motor, then go to Step 12.
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No
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Go to the next step.
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8
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VERIFY WHETHER MALFUNCTION IS IN POWER WINDOW SWITCH OR ELSEWHERE
• Turn the ignition switch to the ON position.
• Inspect the voltage at the following power window switch terminals (sensor 2 signal):
• Does the voltage alternate between 0 V and approx.12 V when the door glass is moving up and down?
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Yes
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Replace the power window switch (malfunction in power window switch automatic mode control), then go to Step 11.
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No
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Go to the next step.
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9
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VERIFY SENSOR 2 OUTPUT SIGNAL
• Turn the ignition switch to the ON position.
• Inspect the voltage at power window motor terminal B (sensor 2 signal).
• Does the voltage alternate between 0 V and approx.12 V when door glass is moving up and down?
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Yes
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Go to the next step.
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No
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Replace the power window motor, then go to Step 12.
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10
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VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN POWER WINDOW SWITCH AND POWER WINDOW MOTOR) OR ELSEWHERE
• Turn the ignition switch to the LOCK position.
• Disconnect the power window switch connector and power window motor connector.
• Is there continuity between the following power window switch terminals and power window motor terminals?
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Yes
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Go to the next step.
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No
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Repair the wiring harness between the power window switch and power window motor, then go to Step 12.
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11
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VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN POWER WINDOW SWITCH AND POWER WINDOW MOTOR) OR ELSEWHERE
• Is there continuity between the following power window switch terminals (sensor 2 signal) and ground?
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Yes
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Repair the wiring harness between the power window switch and power window motor, then go to Step 12.
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No
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Go to the next step.
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12
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VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN POWER WINDOW SWITCH AND POWER WINDOW MOTOR) OR POWER WINDOW SWITCH
• Turn the ignition switch to the ON position.
• Measure the voltage at the following power window switch terminals (sensor 2 signal):
• Is the voltage approx. 12 V?
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Yes
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Repair the wiring harness between the power window switch and front driver-side power window motor, then go to the next step.
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No
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Replace the power window switch (open circuit or short to power supply/ground in power window switch), then go to the next step.
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13
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REINSPECT MALFUNCTION SYMPTOM AFTER REPAIR
• Is malfunction no longer present?
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Yes
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• Troubleshooting completed.
• Explain repairs to the customer.
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No
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Reinspect malfunction symptoms, then repeat from Step 1 if malfunction recurs.
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