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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (Seat Heating System And Seat Cooling System) >> Diagnostic Information and Procedures >> Front Heated Seat Malfunction >> Circuit/System Testing >> Seat Back Circuit Test

Seat Back Circuit Test

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the appropriate E14 Seat Heating Element - Back.
    NOTE: Circuit/System Verification must be performed before proceeding with Circuit/System Testing
  2. Test for less than 5 Ω between the ground circuit terminal 1 and ground.
    • If 5 Ω or greater 
      NOTE: Because of the type of material used in the heater element, a reliable resistance value is unavailable for a component test.

      Test or replace the E14 Seat Heating Element - Cushion.

    • If less than 5 Ω 
  3. Connect a test lamp between the control circuit terminal 2 and ground, engine ON.
  4. Verify the test lamp turns ON when commanding heated seat ON using the S32 Seat Heating Switch.
    • If the test lamp remains OFF 
      NOTE: Because of the type of material used in the heater element, a reliable resistance value is unavailable for a component test.

      Test or replace the E14 Seat Heating Element - Cushion.

    • If the test lamp turns ON 
  5. Test or replace the E14 Seat Heating Element - Back.
    NOTE: Because of the type of material used in the heater element, a reliable resistance value is unavailable for a component test.
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