All Functions Do Not Operate

Wiring diagram: 

Power seat system Ref. to WIRING SYSTEM>POWER SEAT SYSTEM>WIRING DIAGRAM .

• Except for RECARO® seat

  Courtesy of SUBARU OF AMERICA, INC.

• RECARO® seat

  Courtesy of SUBARU OF AMERICA, INC.

1. 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>A PART OF FUNCTION DOES NOT OPERATE .

2. CHECK FUSE  .
   1. Turn the ignition switch to OFF.
   2. Check the power seat fuse inside the fuse box. Ref. to SEATS>RELAY AND FUSE>INSPECTION>CHECK FUSE .

   Is the fuse blown out?

   Yes:  Replace the appropriate fuse.

   No:  Go to  3.

3. CHECK CIRCUIT BREAKER  .
   1. Remove the circuit breaker. Ref. to SEATS>RELAY AND FUSE>REMOVAL>CIRCUIT BREAKER .
   2. Check the circuit breaker. Ref. to SEATS>RELAY AND FUSE>INSPECTION>CHECK CIRCUIT BREAKER .

   Is the circuit breaker normal?

   Yes:  Go to  4.

   No:  Replace the circuit breaker.

4. CHECK POWER SUPPLY CIRCUIT  .
   1. Disconnect the power seat switch connector.
   2. Measure the voltage between harness connector and chassis ground.

      Connector & terminal 

      Except for RECARO® seat 

      (St52) No. 16 (+) - Chassis ground (-):

      (St52) No. 17 (+) - Chassis ground (-):

      RECARO® seat 

      (St52) No. 1 (+) - Chassis ground (-):

   Is the voltage 10 V or more?

   Yes:  Go to  5.

   No:  Check body harness.

5. CHECK GROUND CIRCUIT  .

   Measure the resistance between power seat switch harness connector and chassis ground.

   Connector & terminal 

   Except for RECARO® seat 

   (St52) No. 11 - Chassis ground: 

   (St52) No. 13 - Chassis ground: 

   RECARO® seat 

   (St52) No. 4 - Chassis ground: 

   Is the resistance less than 10 Ω?

   Yes:  Replace the power seat switch assembly. Ref. to SEATS>POWER SEAT .

   No:  Check body harness.