It Does Not Function With Manual Operation. (Driver's Seat With Memory Function)

CHECK SEAT FUNCTIONS.
Operate each power seat switch and check that each power seat function operates normally.

Does all function fail to operate?

Yes: Go to 2

No: Check the motor which does not operate. Ref. to SEATS>Power Seat System>INSPECTION>SOME MOTORS DO NOT OPERATE. (DRIVER'S SEAT WITH MEMORY FUNCTION) .
CHECK FUSE.
Check the power seat fuse inside the fuse box.

Is the fuse blown out?

Yes: Replace the appropriate fuse.

No: Go to 3
CHECK POWER SEAT CONTROL MODULE.
1. Turn the ignition switch to ON.
2. Check the DTC relating the power seat control module using the Subaru Select Monitor.
  NOTE: For detailed operation procedures, refer to "Application help".
Is DTC detected?

Yes: Perform the diagnosis according to the "POWER SEAT MEMORY SYSTEM (DIAGNOSTICS)" information.

No: Go to 4
CHECK POWER SEAT CONTROL MODULE.
1. Turn the ignition switch to ON.
2. Display «Battery Terminal Voltage» on «Data monitor» of the power seat control module using Subaru Select Monitor.
Is the voltage 10 V or more?

Yes: Go to 7

No: Go to 5
CHECK POWER SUPPLY CIRCUIT.
1. Disconnect the power seat control module connector.
2. Measure the voltage between harness connector and chassis ground.
  Connector & terminal
  
  (R155) No. 10 (+) - Chassis ground (-):
  
  (R156) No. 8 (+) - Chassis ground (-):
  
  (R156) No. 3 (+) - Chassis ground (-):
Is the voltage 10 V or more?

Yes: Go to 6

No: Check body harness.
CHECK POWER SUPPLY CIRCUIT.
Measure the resistance between power seat control module harness connector and chassis ground.

Connector & terminal

(R156) No. 14 - Chassis ground:

(R156) No. 12 - Chassis ground:

Is the resistance less than 10 Ω?

Yes: Go to 7

No: Check body harness.
CHECK HARNESS.
1. Disconnect the power seat control module connector.
2. Measure the resistance of the following harnesses.
  Connector & terminal
  
  Slide:
  
  (R156) No. 15 - Chassis ground:
  
  (R156) No. 16 - Chassis ground:
  
  Tilt:
  
  (R156) No. 5 - Chassis ground:
  
  (R156) No. 4 - Chassis ground:
  
  Lifter:
  
  (R156) No. 2 - Chassis ground:
  
  (R156) No. 1 - Chassis ground:
  
  Reclining:
  
  (R156) No. 7 - Chassis ground:
  
  (R156) No. 6 - Chassis ground:
Is the resistance value 10 kΩ or more?

Yes: Replace the power seat control module.

No: Check the harnesses between power seat motor and each motor and between power seat control module connector and each motor.