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Home >> Chevrolet >> 2009 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 261 (Seat System) >> Diagnostic Information and Procedures >> DTC B2425 or B2430 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the seat back heating element harness connector.
  2. Test for less than 6.0 ohms of resistance between the supply voltage terminal and the control terminal of the heater element.
    • If greater than 6.0 ohms, replace the seat back heating element.
  3. Connect the seat back heating element harness connector.
  4. Disconnect the heated seat module harness connectors C2 and C4.
  5. Test for less than 6.0 ohms of resistance between the heating element supply voltage circuit and the heating element control circuit of the seat heating elements.
    • If greater than 6.0 ohms, test the supply voltage circuit and the control circuit for an open/high resistance. If the circuits/connections test normal, replace the seat cushion heating element.
  6. Test the supply voltage circuit of the seat heating elements for a short to battery voltage.
  7. Test the control circuit of the seat heating elements for a short to ground.
  8. If all circuits/connections circuits test normal, replace the heated seat module.
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