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Home >> Chevrolet >> 1995 >> Lumina Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - 3.4L >> Miscellaneous Controls >> Transmission (C-8) >> Converter Lock-Up Signal From PCM

Converter Lock-Up Signal From PCM

  1. Warm engine to operating temperature. Raise vehicle and support drive wheels. Support suspension where necessary to prevent damage to drive axles.
  2. Connect a test light to battery voltage. Touch TCC control driver terminal with test light. On some vehicles, this is terminal "F" of Data Link Connector (DLC). See Fig 1. Accelerate vehicle to 45 MPH and note test light. If test light does not illuminate, problem is a faulty PCM connector or PCM.
Fig 1: Converter Clutch Schematic (3.4L)
G94H32257Courtesy of GENERAL MOTORS CORP.
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