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Home >> Chevrolet >> 2010 >> Traverse LT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 479 (Seat Heating System And Seat Cooling System) >> Diagnostic Information and Procedures >> DTC B2425 or B2430: Left/Right Seat Heater Cushion (With Memory A45 and KB6) >> Circuit/System Testing

Circuit/System Testing

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B2425 0B, B2425 0C, B2425 0D, or B2425 0E

  1. Ignition OFF, disconnect the X3 harness connector at the K40 Seat Memory Control Module.
  2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 5 and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  3. Ignition OFF, disconnect the harness connector at the E14A Seat Heating Element - Driver Back.
    4. NOTE:

    When measuring resistance, the resistance values are based on the seat being at room temperature of 20°C (68°F).

  4. Test for 0.5-1.5 Ω between control circuit terminal 1 and control circuit terminal 4.
    • If not within the specified range, test or replace the E14A Seat Heating Element - Driver Back.
  5. Connect the harness connector at the E14A Seat Heating Element - Driver Back and disconnect the X1 harness connector at the K40 Seat Memory Control Module.
  6. Test for 2-5.5 Ω between control circuit terminal 6 and control circuit terminal 11.
    • If less than the specified range, test for a short between the control circuits. If the circuits test normal, test or replace the E14B Seat Heating Element - Driver Cushion.
    • If greater than the specified range, test the control circuits for an open/high resistance. If the circuits test normal, test or replace the E14B Seat Heating Element - Driver Cushion.
  7. If all circuits test normal, replace the K40 Seat Memory Control Module.

B2430 0B, B2430 0C, B2430 0D, or B2430 0E

  1. Ignition OFF, disconnect the X3 harness connector at the K40 Seat Memory Control Module.
  2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 5 and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  3. Ignition OFF, disconnect the harness connector at the E14C Seat Heating Element - Passenger Back.
    4. NOTE:

    When measuring resistance, the resistance values are based on the seat being at room temperature of 20°C (68°F).

  4. Test for 0.5-1.5 Ω between control circuit terminal 1 and control circuit terminal 4.
    • If not within the specified range, test or replace the E14C Seat Heating Element - Passenger Back.
  5. Connect the harness connector at the seat back heater element and disconnect the X1 and X4 harness connectors at the K40 Seat Memory Control Module.
  6. Test for 2-5.5 Ω between control circuit terminal 14 X1 and control circuit terminal 14 X4.
    • If less than the specified range, test for a short between the control circuits. If the circuits test normal, test or replace the E14D Seat Heating Element - Passenger Cushion.
    • If greater than the specified range, test the control circuits for an open/high resistance. If the circuits test normal, test or replace the E14D Seat Heating Element - Passenger Cushion.
  7. If all circuits test normal, replace the K40 Seat Memory Control Module.
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