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Component Testing

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

Folding Seat Control Switch

  1. Ignition OFF, disconnect the harness connector at the S20 Folding Seat Control Switch.
  2. Test for infinite resistance between the B+ terminal 5 and the control terminal 1 with the switch in the open position.
    • If less than infinite resistance 

      Replace the S20 Folding Seat Control Switch.

  3. Test for less than 2 Ω between the B+ terminal 5 and each control terminal 1 with the switch in the closed position.
    • If 2 Ω or greater 

      Replace the S20 Folding Seat Control Switch.

    • Go to next step: If less than 2 Ω 
  4. All OK.

Folding Seat Motor

  1. Ignition OFF, disconnect the harness connector at the M19 Folding Seat Motor.
    2. NOTE:

    When performing the following tests, make sure that the seat is not already in the position the test is attempting to produce.

  2. Install a 30 A fused jumper wire between control terminal 1 and 12 V.
  3. Momentarily install a jumper wire between control terminal 2 and ground. The seat motor should momentarily perform the FORWARD function.
    • If the motor does not perform the FORWARD function 

      Replace the motor.

    • Go to next step: If the motor performs the FORWARD function 
  4. All OK.
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