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Pick-Up Coil

WARNING: This page is about a different car, the 1988 Cadillac Allante and 1987 Cadillac Allante. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove wiring connector from cap.
  2. Turn four screws and remove cap and coil assembly from lower housing.
  3. Remove rotor and pick-up coil leads from module.
  4. Connect ohmmeter test 1 and then test 2, see Fig 1 .
  5. Observe ohmmeter flex leads by hand to check for intermittent opens.
  6. Test 1 should read infinite at all times.
  7. Test 2 should read steady at one value within 500-1500 ohm range.
  8. If it does not fall within parameters replace Pick-Up Coil.
Fig 1: Testing Pick-Up Coil
G00103688Courtesy of GENERAL MOTORS CORP.