1. POWER WINDOWS

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

3. NORMALLY OPEN SWITCH

4. NORMALLY CLOSED SWITCH

5. DRIVE MOTORS n Permanent Magnet n Two Field Winding Motor n TAPE DRIVE –Cable Drive

6. DIRECT DRIVE MOTOR

7. WINDOW REGULATOR Assist Up Spring

8. WIRING CIRCUITS

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

10. DIAGNOSIS n Broken Wire in Jamb n Sluggish Operation n Excessive Voltage Drop n Jumper Leads n Binding Linkage

11. Check Switch Operation

12. Check for Power at Motor

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

14. DEMONSTRATION

15. SHOP EXERCISE