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POWER WINDOWS

POWER WINDOWS. COLUMBIA BASIN COLLEGE Automotive Technology. COMPONENTS. Master Switch Individual Switch Drive Motors Rack and Pinion Flexible Strip Safety Switch Window Regulator. SATURN POWER WINDOW. NORMALLY OPEN SWITCH. Powered separately by circuit breaker

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POWER WINDOWS

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  1. POWER WINDOWS COLUMBIA BASIN COLLEGE Automotive Technology

  2. COMPONENTS • Master Switch • Individual Switch • Drive Motors • Rack and Pinion Flexible Strip • Safety Switch • Window Regulator

  3. SATURN POWER WINDOW

  4. NORMALLY OPEN SWITCH • Powered separately by circuit breaker • Normally used with two field coil motor • Motor is grounded • Tested with Jumper wires or test light

  5. NORMALLY CLOSED SWITCH • Commonly used in most cars • Used with insulated system. • Receives separate power from ignition • Use jumper wires to test system Lab 356 and 357

  6. MASTER CONTROL SWITCH • On Driver’s Door • System grounded through Master Switch if PM Motor • Safety Lock • Ignition must be on. • Must use Continuity Chart to Test Page 354C and 356C

  7. WINDOW MOTOR CIRCUIT

  8. DRIVE MOTORS • Permanent Magnet • most are insulated • Two Field Winding Motor • opposite windings • motor is grounded • TAPE DRIVE • Cable Drive Page 353C

  9. DIRECT DRIVE MOTOR Page 354C

  10. WINDOW REGULATORAssist Up Spring • Less Amps used to raise window • Dangerous when servicing!

  11. WIRING CIRCUITS Page 356C

  12. ONE TOUCH SYSTEM • Most makers use this system • Electronically controlled by “Power Window Control Module” • Less than .3 sec, window travels all the way down • More than .3 sec, window only travels until you let off switch Page 359 Classroom

  13. DIAGNOSE IT RIGHT THE FIRST TIME • Think about the circuit you are diagnosing. • Get a plan of action through reasoning • Use the Schematic of the System

  14. DIAGNOSIS • Broken Wire in Jamb • Sluggish Operation • Excessive Voltage Drop • Jumper Leads • Binding Linkage • Lubrication is Important!

  15. Pg 406 Lab Check Switch Operation

  16. Check for Power at Motor

  17. Component Replacement • Safety First!! • Cleanliness • Make sure diagnosis is correct. • Verify diagnosis before motor replace • Verify Repair (Is problem taken care of?)

  18. DEMONSTRATION

  19. SHOP EXERCISE • Find a Power Window equipped vehicle. • Get a Power Window Schematic for the car you are working on. • Verify type of system you are working on. (Identify switch type and terminals) • Perform Switch test with jumper wires as applicable. (See Page 405 & 406 in Lab manual for a guide.)

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