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Which value do pending codes have in diagnosis?

  • A.None, since a pending code has not been confirmed and therefore does not indicate any genuine fault at all
  • B.They confirm a fault
  • C.They show that a fault has occurred once, which may point to an intermittent condition that has yet to be confirmed
  • D.They reveal intermittent faults before the lamp is lit

Answer: D

A pending code is often the only evidence of a fault the customer has noticed but the lamp has not reported. The last option states that precisely, which makes it a correct restatement rather than a distractor. Working the distinction through on a single concrete case fixes it more firmly than any rule of thumb. Naming what changes and what stays the same is the reliable route through questions of this shape.

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