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Circuit/System Testing

  1. Ignition OFF, all vehicle systems OFF, disconnect the harness connector at the appropriate seat lumbar/bolster pump listed below:
    • G31D Seat Lumbar/Bolster Pump - Driver
    • G31P Seat Lumbar/Bolster Pump - Passenger
  2. Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
    • If 10 Ω or greater 
    1. Ignition OFF.
    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 K134 Seat Bolster Memory Control Module.
    • Go to next step: If less than 10 Ω 
  3. Connect a test lamp between the control circuit terminal 1 and ground, ignition ON.
  4. Verify the test lamp turns ON after pressing and holding the lumbar forward switch.
    • If the test lamp remains OFF 
    1. Ignition OFF, remove the test lamp, disconnect the harness connector at the K134 Seat Bolster Memory Control Module.
    2. Test for infinite resistance between the control circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    3. Test for less than 2 Ω in the control circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K134 Seat Bolster Memory Control Module.
    • Go to next step: If the test lamp turns ON 
  5. Test or replace the G31 Seat Lumbar/Bolster Pump.
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