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Which record should follow evaporative system repair?

  • A.Only the invoice
  • B.A note of where the leak was found, what was replaced and confirmation that the monitor subsequently completed
  • C.The leak located, the parts fitted and the monitor result
  • D.Nothing, since the repair either works or it does not and the control unit records the outcome itself

Answer: C

The monitor completing without a code is what proves the repair. The last option explains exactly that verification, which makes it a correct and more thorough version of the same answer. Working the distinction through on a single concrete case fixes it more firmly than any rule of thumb. Most errors here come from carrying across a result from a neighbouring case where it does not hold. Checking the units of each quantity catches a wrong formula before the arithmetic begins.

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