Lexus IS250 · Service Manual BODY

PROBLEM SYMPTOMS TABLE

Troubleshooting

HINT:
  1. Inspect the fuses and relays before confirming the suspected areas in the table below.
  2. Inspect each suspected area in numerical order for the corresponding symptom.

Front Power Seat Control System (Driver Side) 
Symptom
Suspected area
See page
Power seat does not operate (slide, front vertical, lifter, reclining).
1. Fuse
-
2. Power seat switch
Click here
3. Wire harness or connector
-
Slide operation function only does not operate.
1. Power seat switch
Click here
2. Front seat frame with adjuster (slide motor)
Click here
3. Wire harness or connector
-
Front vertical operation function only does not operate.
1. Power seat switch
Click here
2. Front seat frame with adjuster (front vertical motor)
Click here
3. Wire harness or connector
-
Lifter operation function only does not operate.
1. Power seat switch
Click here
2. Front seat frame with adjuster (lifter motor)
Click here
3. Wire harness or connector
-
Reclining operation function only does not operate.
1. Power seat switch
Click here
2. Front seat frame with adjuster (reclining motor)
Click here
3. Wire harness or connector
-
Lumbar support operation function only does not operate.
1. Front power seat lumbar switch
Click here
2. Lumbar support adjuster assembly
Click here
3. Wire harness or connector
-
Front Power Seat Control System (Passenger Side) 
Symptom
Suspected area
See page
Power seat does not operate (slide, front vertical, lifter, reclining).
1. Fuse
-
2. Power seat switch
Click here
3. Wire harness or connector
-
Slide operation function only does not operate.
1. Power seat switch
Click here
2. Front seat frame with adjuster (slide motor)
Click here
3. Wire harness or connector
-
Front vertical operation function only does not operate.
1. Power seat switch
Click here
2. Front seat frame with adjuster (front vertical motor)
Click here
3. Wire harness or connector
-
Lifter operation function only does not operate.
1. Power seat switch
Click here
2. Front seat frame with adjuster (lifter motor)
Click here
3. Wire harness or connector
-
Reclining operation function only does not operate.
1. Power seat switch
Click here
2. Front seat frame with adjuster (reclining motor)
Click here
3. Wire harness or connector
-
Lumbar support operation function only does not operate.
1. Front power seat lumbar switch
Click here
2. Lumbar support adjuster assembly
Click here
3. Wire harness or connector
-
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