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Home >> Pontiac >> 2008 >> Torrent GXP, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 145 (Transfer Case - GETRAG 760) >> Diagnostic Information and Procedures >> DTC C0393 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X2 harness connector at the clutch control module.
  2. Ignition ON, verify a test lamp does not illuminate between the following circuits and ground:
    • Low Reference terminal 3
    • Voltage terminal 5
    • If the test lamp illuminates, test the appropriate circuit for a short to voltage.
  3. Ignition OFF, test for infinite resistance between the following circuit terminals and ground:
    • Low Reference terminal 3
    • Voltage terminal 5
    • If less than the specified value, test the appropriate circuit for a short to ground.
  4. Test for less than 5.0 ohms of resistance between the low reference circuit terminal 3 and the voltage supply terminal 5.
    • If greater than the specified range, test the appropriate circuit for an open/high resistance. If the circuits test normal, replace the rear wheel driver module clutch housing.
  5. If all circuits test normal, replace the CCM.
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