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Home >> Chevrolet >> 2007 >> Corvette Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Body & Frame >> Windows >> Fixed & MOVEABLE Window Systems >> Diagnostic Information and Procedures >> DTC B1420 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the appropriate door control module harness connector.
  2. Test for less than 1.0 ohm of resistance between the ground circuit terminal 10 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. If all circuits test normal, replace the appropriate door control module.
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