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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.
  1. Ignition/Vehicle - Off
  2. Disconnect the appropriate electrical connector:
    • A23D Door Latch Assembly - Driver
    • A23P Door Latch Assembly - Passenger
  3. Connect a 25 A fused jumper wire between the test points:
    • A23D Door Latch Assembly - Driver: Control terminal 2 & B+
    • A23P Door Latch Assembly - Passenger: Control terminal 7 & B+
    4. CAUTION:

    Complete the testing as quickly as possible in order to prevent overheating and damaging the component.

  4. Momentarily connect a jumper wire between the test points:
    • A23D Door Latch Assembly - Driver: Control terminal 3 & Ground
    • A23P Door Latch Assembly - Passenger: Control terminal 8 & Ground
  5. Reverse the jumper wires 2 times between the terminals.

    Verify the component works as specified: A23 Door Latch Assembly = Lock & Unlock

    • If not the specified state 

      Replace the component: A23 Door Latch Assembly

    • Go to next step: If the specified state 
  6. All OK.
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