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Home >> Saturn >> 2006 >> Ion Red Line >> Repair and Diagnosis >> Body & Frame >> Windows >> Stationary Window System >> Diagnostic Information and Procedures >> Rear Window Defogger Malfunction >> Component Testing >> Rear Defog Switch
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Rear Defog Switch

  1. Ignition OFF, disconnect the harness connector C2 at the HVAC control assembly
  2. Test for infinite resistance between the signal terminal J and the ground circuit terminal K with the switch in the open position.
    • If not the specified value, replace the HVAC control assembly.
  3. Test for less the 2.0 ohms between the signal terminal J and the ground circuit terminal K with the switch in the closed position.
    • If greater than the specified range, replace the HVAC control assembly
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