Contents Wiring diagrams Section: Seats All sections

Mechanism & Function -- Seat: Other Subaru Forester SH

Seats 14 illustrations ~1188 words

HEIGHT ADJUSTER

The driver's seat is provided with a height adjuster. Both the seat cushion and backrest rise every time the lifter lever is pulled up; they lower every time the lever is pushed down.

The lever is enlarged for easier operation.

Scheme 5

Scheme 5: HEIGHT ADJUSTER

ACTIVE HEADREST

In case of rear-end collision, the headrest moves forward to immediately support the passenger's head to reduce the possibility of injury to the neck.

Scheme 6

Scheme 6: ACTIVE HEADREST

Scheme 7

Scheme 7
  1. In case of rear-end collision, the passenger's body will move rearward by the impact.
  2. When the body moves rearward, the thrust receiving plate inside the seat is pressed in.
  3. When the thrust receiving plate is pressed in, the headrest moves forward due to a levering action.

GENERAL

  1. It is possible to register optimal seat positions adjusted by a driver (seat forward/back position, seat cushion height and angle, back rest angle) to the memory unit.
  2. Up to 2 seat positions can be registered, and even if the seat position has been changed, it will be possible to call out a registered seat position with a single button. It is possible to set this to use for different drivers, or to set a driving position and a rest position.
  3. The memory switch assembly for registering and calling out the memory, is located on the side cover of the driver's seat cushion (door side).

Scheme 8

Scheme 8: COMPONENT

MEMORY UNIT

In addition to storing the current slide/tilt/lifter/reclining positions based on the pulse signals from each motor assembly, registration/call out of preset seat positions is performed by the operation of the memory switch assembly.

The amount of movement for each motor is counted from a reference position, and the counts are recorded by this count. If the counts from the reference position exceeds the limit for some reason, the preset call feature may not operate properly, and initialization will be required in this case. When a preset seat position is registered or called out, the built-in buzzer will sound.

SEAT POSITION REGISTRATION

  1. Set the seat to the optimum position.
  2. Press the SET button, and press preset call button 1 or 2 within 5 seconds.
  3. When the seat position is registered, the buzzer will sound once.

Note. Even if the battery is removed, the registered seat position will not be deleted.

CALLING OUT THE PREST SEAT POSITION

By pressing the preset call button 1 or 2, the seat will return to the registered seat position.

CAUTION1 The operational conditions for the preset call operation is as follows. AT model: OPERATIONAL CONDITIONS FOR PRESET CALL OPERATION - AT MODEL Ignition switch selector level operational condition ON "P" range position Preset call allowed ON Other than the "P" range Preset call prohibited OFF "P" range position Preset call allowed OFF Other than the "P" range Preset call allowed MT model OPERATIONAL CONDITIONS FOR PRESET CALL OPERATION - MT MODEL Ignition switch Parking brake Operational condition ON Applied Preset call allowed ON Disengaged Preset call prohibited OFF Applied Preset call allowed OFF Disengaged Preset call allowed
Ignition switchSelector levelOperational condition
ON"P" range positionPreset call allowed
ONOther than the "P" rangePreset call prohibited
OFF"P" range positionPreset call allowed
OFFOther than the "P" rangePreset call allowed
Ignition switchParking brakeOperational condition
ONAppliedPreset call allowed
ONDisengagedPreset call prohibited
OFFAppliedPreset call allowed
OFFDisengagedPreset call allowed

INITIALIZATION

In relation to the reference position recorded by the memory unit, if the actual amount of seat movement does not match the pulse count, (eg. motor should only count up to 10 but counted to 11 during movement), the preset call operation may not function properly. If the registered position and the called out position differs, it is necessary to perform initialization.

Note. Steps 1 to 4 may be performed in any order.

Scheme 9

Scheme 9: INITIALIZATION
  1. Operate the slide switch and move the seat towards the rear. Even after reaching the rearmost position, continue to operate the switch until a buzzer is heard.
  2. Operate the reclining switch and move the back rest forward. Even after reaching the foremost position, continue to operate the switch until a buzzer is heard.
  3. Operate the tilt switch and move the seat cushion downward. Even after reaching the lowest position, continue to operate the switch until a buzzer is heard.
  4. Operate the lifter switch and move the seat cushion downward. Even after reaching the lowest position, continue to operate the switch until a buzzer is heard.
  5. When the switch operation in the 4th step is turned from ON to OFF, if the initialization has been completed properly, the buzzer will sound 3 times.

Note. If the following conditions occur, the initialization operation will be cancelled. If the interval of operations between steps 1 to 4 exceed 10 seconds If all operations from steps 1 to 4 are not performed If power is cut off during the operations of steps 1 to 4 , or if the voltage to the unit falls below the operating voltage

SEDAN MODELS

The backrest has an armrest. It is also featured with a "center through" function.

Scheme 10

Scheme 10: SEDAN MODELS

Scheme 11

Scheme 11: WAGON MODELS
  1. Unlock the backrest by pushing the release button and then fold the backrest forwards.
  2. The backrest and shoulder portions are separated to improve support of the rear passenger's body. The backrest is also provided with a single-action folding feature, which contributes to form a flat luggage room by folding only the backrest forwards.

A WALK-IN feature is provided on the second row seats to make it easier for the 3rd row passengers to get in and out of the vehicle.

Scheme 12

Scheme 12: GENERAL

Scheme 13

Scheme 13: MECHANISM

FOLDING

When the WALK-IN lever is operated, the recliner is released through a wire inside the seat, and the seat backrest will fold forward. This will press the WALK-IN bracket against the lock plate, and rotate centered on the hinge center, pulling the slide release cable, and the seat slide lock will be released.

Scheme 14

Scheme 14: FOLDING

WHEN FOLDED FORWARD

When the reclining lever is operated, the lock plate is pulled up with the wire. The pulled up lock plate is maintained at that position, and it will become possible to fold forward.

Scheme 15

Scheme 15: WHEN FOLDED FORWARD

The passenger's seat is equipped with an occupant detection system, which consists of an occupant detection control module and four loadcell sensors, etc.

The occupant detection system sends signals to control the deployment of the passenger's seat airbag when a child or small person is sitting in the passenger's seat.

SYSTEM CONFIGURATION

The components of the occupant detection system are integrated as a seat cushion frame assembly; the assembly cannot be disassembled and the components cannot be replaced separately.

Scheme 16

Scheme 16: OCCUPANT DETECTION CONTROL MODULE

The occupant detection control module is installed under the passenger's seat and detects the presence/absence and physique of the person sitting in the passenger's seat based on signals sent from the loadcell sensors to send signals to the airbag control module.

If there is any abnormality in the occupant detection control module, the airbag warning light in the combination meter illuminates to warn the driver of system abnormality. Diagnostic trouble codes can be read by using a Subaru select monitor.

Scheme 17

Scheme 17: LOADCELL SENSOR

Four loadcell sensors are installed on the passenger's seat and each sensor measures the load to send signals to the load occupant detection control module.

Scheme 18

Scheme 18: PASSENGER'S SEAT AIRBAG INDICATOR

The passenger's seat airbag indicator light is built in the center part of the instrument panel. The light indicates the result judged by the occupant detection control module.

Depending on the occupant detection control module's decision, the passenger's seat airbag may not deploy even in case of a frontal collision, however, the driver's seat airbag will deploy and the driver/passenger seat belt pretensioners are controlled to activate. Also, the driver/passenger seat side airbags and the left/right curtain airbags are controlled to activate.

For initial check of the occupant detection system, both the ON (will deploy) and OFF (will not deploy) indicators will illuminate for about 6 seconds after the ignition switch is turned ON, and then turns OFF simultaneously for 2 seconds.