Toyota Tundra Service Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to the system before inspecting the suspected areas below.
Front Power Seat Control System (for Driver Side)

Symptom

Suspected Area

See page

All functions do not operate

Harness or connector

-

Front power seat lumbar switch LH

Front power seat switch LH

Only slide operation function does not operate

Harness or connector

-

Front power seat switch LH

Front seat cushion frame sub-assembly LH (slide motor)

Only Vertical operation function does not operate

Harness or connector

-

Front power seat switch LH

Front seat cushion frame sub-assembly LH (vertical motor)

Only Lifter operation function does not operate

Harness or connector

-

Front power seat switch LH

Front seat cushion frame sub-assembly LH (vertical motor)

Only reclining operation function does not operate

Harness or connector

-

Front power seat switch LH

Front seatback frame sub-assembly LH (reclining motor)

Only lumbar operation function does not operate

Harness or connector

-

Front power seat lumbar switch LH

Front power seat switch LH

Lumbar support adjuster assembly LH (lumbar motor)

Front Power Seat Control System (for Front Passenger Side)

Symptom

Suspected Area

See page

All functions do not operate

Harness or connector

-

Power seat switch assembly

Only slide operation function does not operate

Harness or connector

-

Power seat switch assembly

Front seat cushion frame sub-assembly RH (slide motor)

Only reclining operation function does not operate

Harness or connector

-

Power seat switch assembly

Front seatback frame sub-assembly RH (reclining motor)

Only lumbar support operation function does not operate

Harness or connector

-

Front power seat switch RH (lumbar support control)

Front power seat switch RH

Lumbar support adjuster assembly RH (lumbar motor)

    Parts Location

    System Diagram

    See More:

    Toyota Tundra Service Manual > Valve Body Assembly: Components
    COMPONENTS ILLUSTRATION *1 AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY *2 TRANSMISSION VALVE BODY ASSEMBLY *3 TRANSMISSION WIRE *4 VALVE BODY OIL STRAINER ASSEMBLY *5 SPRING *6 CHECK BALL BODY *7 TEMPERATURE SENSOR CLAMP *8 DETENT SPRING *9 DETENT SPRING COVER *10 GASKET *11 OVERFLOW PLUG *12 DRAIN ...

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    Toyota Tundra Service Manual

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