Circuit/System Testing

Ignition/Vehicle OFF and all vehicle systems OFF, disconnect the harness connector at the appropriate G31 Seat Lumbar/Bolster Pump.
Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
- If 10 Ω or greater
1. Ignition/Vehicle OFF, disconnect the harness connector at the K134 Seat Bolster Memory 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 K134 Seat Bolster Memory Control Module.
- Go to next step: If less than 10 Ω
Ignition ON/Vehicle in Service Mode.
Test for less than 1 V between the control circuit terminal 1 and ground.
- If 1 V or greater
1. Ignition/Vehicle OFF, disconnect the harness connector at the K134 Seat Bolster Memory Control Module, Ignition ON/Vehicle in Service Mode.
2. Test for less than 1 V between the control circuit and ground.
  - If 1 V or greater, repair the short to voltage on the circuit.
  - If less than 1 V, replace the K134 Seat Bolster Memory Control Module.
- Go to next step: If less than 1 V
Ignition/Vehicle OFF, disconnect the harness connector at the K134 Seat Bolster Memory Control Module.
Test for infinite resistance between the control circuit terminal 1 and ground.
- If less than infinite resistance
  Repair the short to ground on the circuit.
- Go to next step: If infinite resistance
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.
- Go to next step: If less than 2 Ω
Perform the seat lumbar/bolster pump component test below.
- Go to next step: If the seat lumbar/bolster pump passed the component test
Replace the K134 Seat Bolster Memory Control Module.