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Crazy Lights

Crazy Lights. Feed Back. Some very strange things can happen to the electrical system on a vehicle. It may seem that you may have all kinds of short circuits to deal with. C 290 BOTTOM. NORMAL OPERATING LIGHT CIRCUIT. BLOWN DOME LIGHT FUSE. C 291 TOP.

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Crazy Lights

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  1. Crazy Lights

  2. Feed Back

  3. Some very strange things can happen to the electrical system on a vehicle

  4. It may seem that you may have all kinds of short circuits to deal with

  5. C 290 BOTTOM NORMAL OPERATING LIGHT CIRCUIT

  6. BLOWN DOME LIGHT FUSE C 291 TOP

  7. BLOWN DOME FUSE WITH DOOR SWITCH CLOSED C 291 B0TT0M

  8. BRAKE LIGHT SWITCH CLOSED C 292 TOP

  9. CIGAR LIGHTER FUSE BLOWN C 292 BOTTOM

  10. OPENING DOOR CAUSES COURTESY LIGHT TO GO OUT AND DOME LIGHT GETS BRIGHTER C 293 TOP

  11. DOME AND COURTESY LIGHTS GO OUTWHEN BRAKES ARE APPLIED C 293 BOTTOM

  12. CORRODED TERMINALSCAUSE FEEDBACK C 294 TOP

  13. Keep calm! It is usually easier to fix than you first think.

  14. You might even make money on the deal

  15. Example • The dash, park, tail, light circuit • The Cigar lighter circuit • The courtesy light circuit Chrysler

  16. With a Systematic approach, “crazy Lights” problems can become simple problems.

  17. First, do not panic

  18. Keep in mind that whatever caused the problem, a feedback was created and electricity picked out a new path

  19. An easier way to go!

  20. Fouled-up or crossed wires is the least of your worries

  21. Start with the simple checks first

  22. Follow this procedure • Check for blown or missing fuses • Check all the lights • Are any to: • bright? • dim • Wrong bulbs? • Poor grounds?

  23. Follow this procedure • Check the body ground • to the chassis • back to the battery • Check for clean and tight electrical connections in the suspect area

  24. End

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