Practice question

One amber warning lamp on a school bus glows dimly while the others flash normally. The most likely cause is:

  1. A failed warning lamp flasher
  2. High resistance (corrosion) in that lamp's connection or ground
  3. A discharged battery
  4. A blown main fuse

Answer: B — High resistance (corrosion) in that lamp's connection or ground

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Practice more: ASE S6 Electrical Electronic Systems (School Bus) Practice Questions - ASE S6 - Electrical Electronic Systems (School Bus) Certification Exam →