ASE ONLINE CERTIFICATION PREP and BAR Specific Diagnostic Course:
The primary function of a diode is to control the direction of current flow. In simple terms, a diode is a one-way check valve in an electrical circuit. It allows current to flow in one direction without returning back.
Another diode is the clamping diode, this diode has to be placed across a coil such as the AC compressor clutch.
The diode provides a path for the spike that is generated when the clutch coil is turned off and induces a voltage. A clamping diode helps protect sensitive electronic components in the vehicle, from damage.
Diodes or Automotive Diodes are semiconductors and are used in many electrical and electronic circuits.
Diodes are consider one-way check valves and there are some that will protect computers from damage and their electronic components.
Automotive Diode; These type of diodes are called spike protection diodes.
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