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Home › Chevrolet › 2021 › Malibu LS › Repair and Diagnosis › Body & Frame › Seats › Power Seats › Diagnostic Information and Procedures › Memory Seat Feature Malfunction › Circuit/System Testing

Circuit/System Testing

  1. NOTE:

    It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.

    Ignition/Vehicle & All vehicle systems - Off

  2. Disconnect the electrical connector: S47D Seat Memory Switch - Driver
  3. Test for less than 30 ohms between the test points: Low Reference circuit terminal 1 & Ground
    • If 30 ohms or greater 
    1. Disconnect the electrical connector: X6 @ K40D Seat Memory Control Module - Driver
    2. Test for less than 2 ohms between the test points: Low Reference circuit terminal 1 @ Component harness & Terminal 11 X6 @ Control module harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component: K40D Seat Memory Control Module - Driver
    • Go to next step: If less than 30 ohms 
  4. Ignition - On / Vehicle - In Service Mode
  5. Operate the component: S64D Seat Adjuster Switch - Driver = Pressed

    Test for greater than 9 V between the test points:

    • Signal circuit terminal 5 @ Component harness & Ground
    • Signal circuit terminal 6 @ Component harness & Ground
    • If less than 9 V 
    1. Ignition/Vehicle - Off
    2. Disconnect the electrical connector: X6 @ K40D Seat Memory Control Module - Driver
    3. Test for infinite resistance between the test points:
      • Signal circuit terminal 5 @ Component harness & Ground
      • Signal circuit terminal 6 @ Component harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • Go to next step: If less than infinite resistance
    4. Test for less than 2 ohms between the test points: Signal circuit terminal @ Component harness & The other end of the circuit @ Control module harness X6
      • Signal circuit terminal 5 @ Component harness & Terminal 15 X6 @ Control module harness
      • Signal circuit terminal 6 @ Component harness & Terminal 12 X6 @ Control module harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component: K40D Seat Memory Control Module - Driver
    • Go to next step: If 9 V or greater 
  6. Ignition/Vehicle - Off
  7. Disconnect the electrical connector: X6 @ K40D Seat Memory Control Module - Driver
  8. Ignition - On / Vehicle - In Service Mode
  9. Test for less than 1 V between the test points:
    • Seat Memory Switch Set Signal Terminal 5 & Ground
    • Seat Memory Switch Signal Terminal 6 & Ground
    • If 1 V or greater 

      Repair the short to voltage on the circuit.

    • Go to next step: If less than 1 V 
  10. Test or replace the component: S47D Seat Memory Switch - Driver
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