Some Motors Do Not Operate. (Without Memory)

Slide operation failure

CHECK SWITCH .
1. Disconnect the connector of power seat switch assembly.
2. Measure the resistance between connector terminals when moving the switch to slide forward and slide backward. Ref. to SEATS>Power Seat System>INSPECTION>CHECK POWER SEAT SWITCH .
Is the inspection result normal?
- Yes: Go to 2 .
- No: Replace the power seat switch assembly.
CHECK HARNESS .
1. Disconnect the power seat switch connector and slide motor connector.
2. Measure the resistance between power seat switch connector and slide motor connector.
  Connector & terminal
  
  (R200) No. 8 - (R202) No. 5:
  
  (R200) No. 7 - (R202) No. 1:
Is the resistance less than 10 Ω?
- Yes: Go to 3 .
- No: Check power seat harness.
CHECK SLIDE MOTOR .
1. Connect the power seat switch connector and slide motor connector.
2. Apply 12 V to the slide motor and check the motor rotation.
  Connector & terminal
  
  (R202) No. 5 (+) - (R202) No. 1 (-):
  
  (R202) No. 1 (+) - (R202) No. 5 (-):
Does the motor rotate normally?
- Yes: Check for temporary poor contact or mechanical trouble in slide rail.
- No: Slide motor problem. Replace the seat cushion frame assembly.

Malfunction of tilt operation

CHECK SWITCH .
1. Disconnect the connector of power seat switch assembly.
2. Measure the resistance between connector terminals when moving the switch to tilt up and tilt down. Ref. to SEATS>Power Seat System>INSPECTION>CHECK POWER SEAT SWITCH .
Is the inspection result normal?
- Yes: Go to 2 .
- No: Replace the power seat switch assembly.
CHECK HARNESS .
1. Disconnect the power seat switch connector and tilt motor connector.
2. Measure the resistance between power seat switch connector and tilt motor connector.
  Connector & terminal
  
  (R200) No. 3 - (R203) No. 4:
  
  (R200) No. 2 - (R203) No. 6:
Is the resistance less than 10 Ω?
- Yes: Go to 3 .
- No: Check power seat harness.
CHECK TILT MOTOR .
1. Connect the power seat switch connector and tilt motor connector.
2. Apply 12 V to the tilt motor and check the motor rotation.
  Connector & terminal
  
  (R203) No. 4 (+) - (R203) No. 6 (-):
  
  (R203) No. 6 (+) - (R203) No. 4 (-):
Does the motor rotate normally?
- Yes: Check for temporary poor contact or mechanical trouble in tilt mechanism.
- No: Tilt motor problem. Replace the seat cushion frame assembly.

Malfunction of lifter operation
1. CHECK SWITCH .
  1. Disconnect the connector of power seat switch assembly.
  2. Measure the resistance between connector terminals when moving the switch to lifter up and lifter down. Ref. to SEATS>Power Seat System>INSPECTION>CHECK POWER SEAT SWITCH .
  Is the inspection result normal?
  - Yes: Go to 2 .
  - No: Replace the power seat switch assembly.
2. CHECK HARNESS .
  1. Disconnect the power seat switch connector and lifter motor connector.
  2. Measure the resistance between power seat switch connector and lifter motor connector.
    Connector & terminal
    
    (R200) No. 6 - (R204) No. 6:
    
    (R200) No. 9 - (R204) No. 4:
  Is the resistance less than 10 Ω?
  - Yes: Go to 3 .
  - No: Check power seat harness.
3. CHECK LIFTER MOTOR .
  1. Connect the power seat switch connector and lifter motor connector.
  2. Apply 12 V to the lifter motor and check the motor rotation.
    Connector & terminal
    
    (R204) No. 6 (+) - (R204) No. 4 (-):
    
    (R204) No. 4 (+) - (R204) No. 6 (-):
  Does the motor rotate normally?
  - Yes: Check for temporary poor contact or mechanical trouble in lifter mechanism.
  - No: Lifter motor problem. Replace the seat cushion frame assembly.
Malfunction of reclining operation
1. CHECK SWITCH .
  1. Disconnect the connector of power seat switch assembly.
  2. Measure the resistance between connector terminals when moving the switch to reclining forward and reclining backward. Ref. to SEATS>Power Seat System>INSPECTION>CHECK POWER SEAT SWITCH .
  Is the inspection result normal?
  - Yes: Go to 2 .
  - No: Replace the power seat switch assembly.
2. CHECK HARNESS .
  1. Disconnect the power seat switch connector and reclining motor connector.
  2. Measure the resistance between power seat switch connector and reclining motor connector.
    Connector & terminal
    
    (R200) No. 10 - (R201) No. 6:
    
    (R200) No. 5 - (R201) No. 4:
  Is the resistance less than 10 Ω?
  - Yes: Go to 3 .
  - No: Check power seat harness.
3. CHECK RECLINING MOTOR .
  1. Connect the power seat switch connector and reclining motor connector.
  2. Apply 12 V to the reclining motor and check the motor rotation.
    Connector & terminal
    
    (R201) No. 6 (+) - (R201) No. 4 (-):
    
    (R201) No. 4 (+) - (R201) No. 6 (-):
  Does the motor rotate normally?
  - Yes: Check for temporary poor contact or mechanical trouble in reclining hinge.
  - No: Reclining motor problem. Replace the backrest frame assembly.
Malfunction of lumbar operation
1. CHECK SWITCH .
  1. Disconnect the connector of lumbar switch assembly.
  2. Measure the resistance between connector terminals when moving the switch to lumbar forward and lumbar backward. Ref. to SEATS>Power Seat System>INSPECTION>CHECK LUMBAR SWITCH .
  Is the inspection result normal?
  - Yes: Go to 2 .
  - No: Replace the lumbar switch assembly.
2. CHECK HARNESS .
  1. Disconnect the lumbar switch connector and lumbar motor connector.
  2. Measure the resistance between lumbar switch connector and lumbar motor connector.
    Connector & terminal
    
    (R195) No. 3 - (R198) No. 1:
    
    (R195) No. 4 - (R198) No. 2:
  Is the resistance less than 10 Ω?
  - Yes: Go to 3 .
  - No: Check power seat harness.
3. CHECK LUMBAR MOTOR .
  1. Connect the lumbar switch connector and lumbar motor connector.
  2. Apply 12 V to the lumbar motor and check the motor rotation.
    Connector & terminal
    
    (R198) No. 1 (+) - (R198) No. 2 (-):
    
    (R198) No. 2 (+) - (R198) No. 1 (-):
  Does the motor rotate normally?
  - Yes: Check for temporary poor contact or mechanical trouble in lumbar mechanism.
  - No: Lumbar motor problem. Replace the backrest frame assembly.