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Home >> Chevrolet >> 1995 >> Lumina Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.1L >> ECM/Pcm Code Charts >> Code 82, 3X Signal Error >> Notes

Code 82, 3X Signal Error: Notes

Magnetic crank sensor is used to determine engine crankshaft position much the same way as the pick-up coil did in distributor type systems. Sensor is mounted in block near a 7-slot wheel on crankshaft. Rotation of wheel creates a magnetic field in sensor which induces a voltage signal. Electronic ignition module then processes this signal and creates reference pulses needed by PCM to trigger correct coil at correct time.

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. This test will determine if 12-volt supply and a good ground are available at ignition module.
  2. Checks for resistance of crank sensor and connections.
  3. Voltage will vary in this test depending on cranking speed of engine.