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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Body & Frame >> Seats >> Power Seat System >> Diagnostic Information and Procedures >> Power Seat Malfunction (8-Way without Memory A45) >> Component Testing

Component Testing

Seat Adjuster Switch Test

  1. Ignition OFF, disconnect the harness connector at the S64 Seat Adjuster Switch.
  2. Test for infinite resistance between the B+ terminal and each control terminal with the switch in the open position.
    • If less than infinite resistance 

      Replace the S64 Seat Adjuster Switch.

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

      Replace the S64 Seat Adjuster Switch.

    • If less than 2Ω 
  4. Test for less than 2Ω between the ground terminal and each control terminal with the switch in the open position.
    • If 2Ω or greater 

      Replace the S64 Seat Adjuster Switch.

    • If less than 2Ω 
  5. All OK.

Seat Motor

  1. Ignition OFF, disconnect the harness connector at the appropriate seat motor listed below:
    • M50 Front Vertical Motor
    • M55 Rear Vertical Motor
    • M51 Horizontal Motor
    • M56 Recline 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.

  3. Install a 30A fused jumper wire between control terminal 1 and 12V.
  4. Momentarily install a jumper wire between control terminal 5 and ground. The seat motor should momentarily perform the appropriate FORWARD/ REARWARD/ UP/ DOWN function.
    • If the motor does not perform the FORWARD/ REARWARD/ UP/ DOWN function 

      Replace the motor.

    • If the motor performs the FORWARD/ REARWARD/ UP/ DOWN function 
  5. Reverse the jumper wires; the motor should perform FORWARD/ REARWARD/ UP/ DOWN function.
    • If the motor does not perform the FORWARD/ REARWARD/ UP/ DOWN function 

      Replace the motor.

    • If the motor performs the FORWARD/ REARWARD/ UP/ DOWN function 
  6. All OK.