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Circuit/System 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 OFF, all vehicle systems OFF, disconnect the harness connector at the appropriate S115 Easy Entry Switch. It may take up to 2 min for all vehicle systems to power down.
  2. Test for less than 220 Ω between the low reference circuit terminal 2 and ground.
    • If 220 Ω or greater 
    1. Ignition OFF, disconnect the appropriate X1 or X5 harness connector at the K23 Folding Top Control Module.
    2. Test for less than 2 Ω in the low reference circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K23 Folding Top Control Module.
    • Go to next step: If less than 220 Ω 
  3. Ignition ON.
  4. Verify the appropriate scan tool Folding Top Control Module easy entry switch parameter listed below is Inactive.
    • S115D Easy Entry Switch - Driver Seat
    • S115P Easy Entry Switch - Passenger Seat
    • If not Inactive 
    1. Ignition OFF, disconnect the appropriate X1 or X5 harness connector at the K23 Folding Top Control Module.
    2. Test for infinite resistance between the signal circuit terminal 1 and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the K23 Folding Top Control Module.
    • Go to next step: If Inactive 
  5. Install a 3 A fused jumper wire between the signal circuit terminal 1 and ground.
  6. Verify the scan tool Easy Entry Switch parameter is Active.
    • If not Active 
    1. Ignition OFF, remove the jumper wire, disconnect the appropriate X1 or X5 harness connector at the K23 Folding Top Control Module, ignition ON.
    2. Test for less than 1 V between the signal circuit terminal 1 and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • Go to next step: If less than 1 V
    1. Ignition OFF.
    2. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K23 Folding Top Control Module.
    • Go to next step: If Active 
  7. Test or replace the S115 Easy Entry Switch.
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