Toyota Tundra Service Manual: Front Power Seat Lumbar Switch

Toyota Tundra Service Manual / Vehicle Interior / Seat / Front Power Seat Lumbar Switch

Components

COMPONENTS

ILLUSTRATION

Inspection

INSPECTION

PROCEDURE

1. INSPECT FRONT POWER SEAT LUMBAR SWITCH LH

(a) Check the resistance of the front power seat lumbar switch LH.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

3 (H) - 5 (B)

Hold switch on

Below 1 Ω

1 (R) - 2 (E)

2 (E) - 3 (H)

Neutral

1 (R) - 2 (E)

2 (E) - 3 (H)

Release switch on

1 (R) - 5 (B)

If the result is not as specified, replace the front power seat lumbar switch LH.

Text in Illustration

*1

Hold Switch

*2

Release Switch

*a

Component without wire harness connected

(Front Power Seat Lumbar Switch LH)

Installation

INSTALLATION

CAUTION / NOTICE / HINT

CAUTION:

Wear protective gloves. Sharp areas on the parts may injure your hands.

PROCEDURE

1. INSTALL FRONT POWER SEAT LUMBAR SWITCH LH

(a) Attach the 4 claws to install the front power seat lumbar switch LH.

2. INSTALL FRONT SEAT CUSHION SHIELD LH

3. INSTALL FRONT SEAT ASSEMBLY LH

(See page )

Removal

REMOVAL

CAUTION / NOTICE / HINT

CAUTION:

Wear protective gloves. Sharp areas on the parts may injure your hands.

PROCEDURE

1. REMOVE FRONT SEAT ASSEMBLY LH

(See page )

2. REMOVE FRONT SEAT CUSHION SHIELD LH

3. REMOVE FRONT POWER SEAT LUMBAR SWITCH LH

(a) Detach the 4 claws to remove the front power seat lumbar switch LH.

    System Diagram

    Front Power Seat Motor Assembly

    See More:

    Toyota Tundra Service Manual > Occupant Classification System: Occupant Classification Sensor Power Supply Circuit Malfunction (B1793)
    DESCRIPTION The occupant detection sensor power supply circuit consists of the occupant classification ECU and the occupant detection sensors. DTC B1793 is set when a malfunction is detected in the occupant detection sensor power supply circuit. DTC Code DTC Detection Condition Trouble Area B1793 On ...

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