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Home >> Saab >> 1991 >> 900 S, 2D Hatchback, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Fault Codes (Without Using ISAT Scan Tester) >> Error Code 12233
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Error Code 12233

  1. The check engine light is on. There is a faulty LH control unit (ROM mixture fault).
  2. Replace control unit.
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