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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (Seat Heating System And Seat Cooling System) >> Diagnostic Information and Procedures >> Heated/Cooled Seats Inoperative >> Circuit System Verification

Circuit System Verification

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. If both the driver and passenger heated and cooled seats are inoperative, refer to Driver and Passenger Heated/Cool Seats Inoperative.
  2. Ignition ON, observe the following scan tool Driver Door Switch parameters while pressing and releasing the related switch. The readings should change between Inactive and Active.
    • Seat Heat Mode Sw.
    • Seat Back Heat Mode Sw.
    • Seat Cool Mode Switch.
    • If not Active or always Active, refer to the Heated and Cooled Seat Switch Component Test.
  3. Ignition ON, operate the driver heated/cooled seat in each of the three modes for more than 1.5 minutes each, then verify that no DTCs are set.
  4. Ignition ON, observe the following scan tool Passenger Door Switch parameters while pressing and releasing the related switch. The readings should change between Inactive and Active.
    • Seat Heat Mode Sw.
    • Seat Back Heat Mode Sw.
    • Seat Cool Mode Switch.
    • If not Active or always Active, refer to the Heated and Cooled Seat Switch Component Test.
  5. Ignition ON, operate the passenger heated/cooled seat in each of the three modes for more than 1.5 minutes each, then verify that no DTCs are set.
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