Subaru Legacy BN/BS (2015-2019) Service Manual: Disassembly
1. MANUAL SEAT (DRIVER’S SEAT) CAUTION: • Before assembling, make sure how the harnesses are routed behind the seat cushion in order to avoid misarranging. Assembling with harnesses improperly routed may cause the harness to get caught and short out. • Do not reuse hog rings. • Refer to “CAUTION” of “General Description” before handling the airbag system components. General Description > CAUTION 1. Turn the ignition switch to OFF. 2. Disconnect the ground terminal from the battery sensor, and wait for at least 60 seconds before starting work. NOTE NOTE: • Before removing the seat, raise the seating face. • For models with power seat, remove the slide rail installing bolt before disconnecting the ground terminal from the battery sensor. 3. Remove the front seat from vehicle. Front Seat > REMOVAL 4. Remove the knob - lifter. (1) Remove the cap - lifter lever (a). NOTE: Insert a flat tip screwdriver or similar tool wrapped with protective tape into the gap (shown with arrow) between the cap - lifter lever and the knob - lifter. (2) Remove the screws and remove the knob - lifter.
5. Remove the lever - reclining. (1) Pull up the lever - reclining and release the claws on the back. (2) Pull out the lever - reclining.
6. Remove the cover - hinge front seat OUT. (1) Remove the screws. (2) Release the claw in the upper section of the cover - hinge front seat OUT. (3) Release the claw in the rear section of the cover - hinge front seat OUT. (4) Release the claw in the front section of the cover - hinge front seat OUT, then remove the cover - hinge front seat OUT.
7. Remove the seat belt inner - front. Front Seat Belt > REMOVAL 8. Remove the cover - hinge front seat INN. (1) Remove the screws. (2) Release the claw in the upper section of the cover - hinge front seat INN. (3) Release the claw in the rear section of the cover - hinge front seat INN, then remove the cover - hinge front seat INN.
9. Separate the backrest assembly and the seat cushion assembly. (1) Remove the following harnesses and connector clamps from the reverse side of the seat cushion assembly. • Side airbag harness • Seat cushion airbag harness • Seat heater harness (with seat heater) (2) Remove the bolts from reclining hinge of both sides. (3) While taking care not to damage the airbag harness, separate the backrest assembly and the seat cushion assembly.
10. Release the hook and detach the touch fastener on the lower front side, and then remove the pad assembly - front seat cushion and the cover - front seat cushion. NOTE: Turn over the rear side of the seat, and remove the hook on the front side of the seat cushion frame. 11. Remove the nuts and then remove the seat cushion airbag module.
12. Remove the cover - front cushion. (1) Remove the hog ring (a).
(2) Pull out the pad assembly - front seat cushion from the cover - front cushion. (3) Remove the seat heater module from the pad assembly as necessary. CAUTION: • If the seat heater module is removed, replace the pad assembly with a new part. • If the seat heater module is reused, remove the polyurethane section from the reverse side completely. 13. Remove the pad assembly - front seat backrest and the cover COMPL - front backrest. (1) Remove the plastic fastener at the back side (bottom) of backrest assembly. (2) Open the fastener at the rear side of backrest assembly.
(3) Remove the hog ring. (4 pieces)
(4) Remove the pad assembly - front seat backrest and the cover COMPL - front backrest from the backrest assembly. 14. Remove the side airbag module. CAUTION: Do not open the protective cover of the side airbag. If any damage is present in the protective cover or the cloth of side airbag module comes out from the protective cover slit, replace the side airbag module with a new part. (1) Remove the hexagon cap nut and nuts. (2) While taking care not to damage the airbag protective cover, remove the side airbag module.
15. Remove the bushing - headrest.
NOTE: Catch the tip of the bushing - headrest with pliers and push it outward from the inside of seat to remove it. 16. Pull out the frame assembly - front backrest. 17. Remove the cover COMPL - front backrest. (1) Remove the hog ring (a).
(2) Pull out the pad assembly - front seat backrest from the cover COMPL - front backrest. (3) Remove the seat heater module from the pad assembly as necessary. CAUTION: • If the seat heater module is removed, replace the pad assembly with a new part. • If the seat heater module is reused, remove the polyurethane section from the reverse side completely. 2. POWER SEAT (DRIVER’S SEAT) CAUTION: • Before assembling, make sure how the harnesses are routed behind the seat cushion in order to avoid misarranging. Assembling with harnesses improperly routed may cause the harness to get caught and short out. • Do not reuse hog rings. • Do not disassemble the backrest frame assembly and seat cushion frame and slide rail assembly. • Refer to “CAUTION” of “General Description” before handling the airbag system components. General Description > CAUTION 1. Turn the ignition switch to OFF. 2. Disconnect the ground terminal from the battery sensor, and wait for at least 60 seconds before starting work. NOTE NOTE: • Before removing the seat, raise the seating face. • For models with power seat, remove the slide rail installing bolt before disconnecting the ground terminal from the battery sensor. 3. Remove the seat from vehicle. Front Seat > REMOVAL 4. Remove the following harnesses and connector clamps from the reverse side of the seat cushion. • Seat belt inner - front connector • Side airbag module connector • Seat cushion airbag module connector • Seat heater harness (with seat heater) • Power seat connector (with power seat) • Reclining motor (with power seat) • Lumbar support motor (with lumbar support) 5. Remove the cover - hinge front seat OUT. (1) Remove the screws in the rear section of the cover - hinge front seat OUT. (2) Release the claw in the upper section of the cover - hinge front seat OUT. NOTE: Use a plastic clip remover. (3) Remove the clip in the center of the cover - hinge front seat OUT. (4) Release the claw in the front section of the cover - hinge front seat OUT.
(5) Disconnect the power seat switch and lumbar switch connector and remove the cover - hinge front seat OUT. 6. Remove the seat belt inner - front. Front Seat Belt > REMOVAL 7. Remove the cover - hinge front seat INN. (1) Remove the screws. (2) Release the claw in the upper section of the cover - hinge front seat INN. (3) Remove the cover - hinge front seat INN by pulling it backward.
8. Separate the backrest assembly and the seat cushion assembly. (1) Remove the bolts from reclining hinge of both sides. (2) While taking care not to damage the airbag harness, separate the backrest assembly and the seat cushion assembly.
9. Remove the hook, and remove the pad assembly - front seat cushion and the cover - front cushion. NOTE: Turn over the rear side of the seat, and remove the hook on the front side of the seat cushion frame. 10. Remove the hexagon cap nuts, and remove the power seat control module. (Model with power seats with memory function)
11. Remove the nuts and then remove the seat cushion airbag module.
12. Remove the cover - front cushion. (1) Remove the hog ring (a).
(2) Pull out the pad assembly - front seat cushion from the cover - front cushion. (3) Remove the seat heater module from the pad assembly as necessary. CAUTION: • If the seat heater module is removed, replace the pad assembly with a new part. • If the seat heater module is reused, remove the polyurethane section from the reverse side completely. 13. Remove the pad assembly - front seat backrest and the cover COMPL - front backrest. (1) Remove the plastic fastener at the back side (bottom) of backrest assembly. (2) Open the fastener at the rear side of backrest assembly.
(3) Remove the hog ring. (4 pieces)
(4) Remove the backrest pad & cover from backrest assembly. 14. Remove the side airbag module. CAUTION: Do not open the protective cover of the side airbag. If any damage is present in the protective cover or the cloth of side airbag module comes out from the protective cover slit, replace the side airbag module with a new part. (1) Remove the hexagon cap nut and nuts. (2) While taking care not to damage the airbag protective cover, remove the side airbag module.
15. Remove the headrest bushing.
NOTE: Catch the tip of headrest bushing with pliers and push it from inside seat to outside to remove it. 16. Pull out the frame assembly - front backrest. 17. Remove the cover COMPL - front backrest. (1) Remove the hog ring (a).
(2) Pull out the pad assembly - front seat backrest from the cover COMPL - front backrest. (3) Remove the seat heater module from the pad assembly as necessary. CAUTION: • If the seat heater module is removed, replace the pad assembly with a new part. • If the seat heater module is reused, remove the polyurethane section from the reverse side completely. 3. PASSENGER’S SEAT CAUTION: • The occupant detection system (passenger’s seat only) control module, the occupant detection sensor, the seat cushion airbag module, the pad assembly - front seat cushion and the frame assembly - front cushion are considered as a single seat cushion pad & frame assembly. Never remove the occupant detection control module or the occupant detection sensor from the frame assembly - front cushion. • If the cover - front cushion is removed, make sure to replace the hang wire on the cover - front cushion side with a new wire. • Never remove the occupant detection sensor connector from the occupant detection control module. • Refer to “CAUTION” of “General Description” before handling the airbag system components. General Description > CAUTION • When replacing the seat cover, be careful not to damage the occupant detection sensor while installing the hog ring. • When removing or replacing the seat cover, perform “Occupant Detection System Inspection” after installing the seat to check if the occupant detection system operates normally. PRE-DELIVERY INSPECTION (PDI) PROCEDURE • If the seat heater module is removed, replace the seat cushion pad & frame assembly with a new part. • If the seat heater module is reused, remove the polyurethane section from the reverse side completely. 1. Remove the front seat (passenger’s side) from vehicle. Front Seat > REMOVAL 2. Refer to the disassembly procedures for the driver’s seat. • Manual seat: Front Seat > DISASSEMBLY • Power seat: Front Seat > DISASSEMBLY |
Inspection
1. SEAT COVERCheck that there is no tear or fray on the cover COMPL - front backrest and the cover - front seat cushion.NOTE:• If the door side of the cover COMPL - front backrest is torn or fra ...
Other materials:
Dtc b1578 meter
DIAGNOSIS START CONDITION:• Battery voltage is 10 V or more.• The remote engine starter was not used to start the engine.DTC DETECTING CONDITION:Reference code incompatibility between combination meter and body integrated unit or communication failure between body integrated unit and ECM ...
