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Control Module Resistance Check

  1. With control module disconnected and servo connected, probe terminal "C" to ground with ohmmeter. Reading should be 30-55 ohms. With servo disconnected probe terminal "C" to ground. Reading should be infinity (open circuit).
  2. With servo connected, probe terminals "F" to "H". Reading should be 15-25 ohms. With servo disconnected, probe terminal "F" to ground. Reading should be infinity (open circuit). With servo disconnected, probe terminal "H" to ground. Reading should be infinity (open circuit).
  3. With servo connected, probe terminal "K" to ground. Reading should be 30-55 ohms. With servo disconnected, probe terminal "K" to ground. Reading should be infinity (open circuit).
  4. With servo connected or disconnected, probe terminal "J" to ground. Reading should be zero ohms (continuity).
NOTE: This previous test checks a blank terminal connector, but it is correct according to GM.
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