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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 45 (Transfer Case - BW 4475) >> Diagnostic Information and Procedures >> DTC C05D8 >> Component Testing

Component Testing

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M71 Transfer Case Clutch Coil

  1. Ignition OFF, disconnect the harness connector at the M71 Transfer Case Clutch Coil.
  2. NOTE:

    Testing for step 2 is performed on the M71 Transfer Case Clutch Coil using the PU probe J 35616-5.

  3. Test for 2.5 - 3.5 Ω between the control circuit, terminal A, and the low reference circuit, terminal B.
    • If not between 2.5 - 3.5 Ω 

      Replace the M71 Transfer Case Clutch Coil and perform the Transfer Case Clutch Identifier Configuration/Reset function.

    • Go to next step: If between 2.5 - 3.5 Ω 
  4. M71 Transfer Case Clutch Coil OK.