Seat: Overview Nissan Armada I рестайлинг

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System Description

The third row power folding seat system is capable of allowing a user to fold up or down either the left or right third row seat using a set of front or rear mounted switches.

The third row power folding seat control unit is located in the control unit/cross beam assembly underneath the LH third row seat. It receives signals from the third row power folding seat switches, TCM and the Hall effect switches mounted in the LH and RH seat motors. The control unit has self-diagnosis capability through chime codes and may be accessed by turning the ignition switch ON and OFF three times. The control unit drives the LH and RH seat motors to fold them up and down.

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The third row power folding seat switches are located in pairs on the luggage side finisher RH. A switch must be held in order for the seat to move.

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The third row power folding seat motors are located in the seat motor/hinge assembly. There are two motors, one for LH and one for RH seat folding operations. Power and ground are provided to the motors by the third row power folding seat control unit. The control unit reverses polarity to the motors to raise or lower the seat. The motors also contain Hall effect switches. These switches send signals back to the control unit which help it determine fully open and closed positions.

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Component Description

COMPONENT FUNCTION

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1. When handling seat, be extremely careful not to scratch heating unit.
2. Front passenger seat cushion and seatbacks equipped with airbags cannot be disassembled. They are replaced as assemblies only.
3. Do not use any organic solvent, such as thinner, benzene, alcohol, etc. to clean trim.

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Regarding Wiring Diagram information, refer to " WIRING DIAGRAM ".

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1. CHECK FUSES AND FUSIBLE LINK Check for blown fuses or fusible link. FUSE AND FUSIBLE LINK REFERENCE Unit Power source Fuse or Fusible Link Location Third row power folding seat control unit Battery F Fuse and fusible link box 19 Fuse block (J/B) Ignition switch ON or START 14 Are any fuses or fusible links blown? YES: Install new fuse. Eliminate cause of malfunction if fuse blows again. NO: GO TO 2
2. POWER SUPPLY CIRCUIT CHECK Disconnect third row power folding seat control unit connectors B401 and B402. Check voltage between third row power folding seat control unit harness connectors B401, B402 terminals 1, 8, 13, 14 and ground. IGNITION SWITCH POSITION CHART Terminals Ignition switch position (+) (-) OFF ON START Connector Terminal A: B401 1 Ground Battery voltage 8 0V Battery voltage B: B402 13 Battery voltage 14 Battery voltage Are the inspection results normal? YES: GO TO 3 NO: Check harness for open between third row power folding seat control unit and fuse or fusible link.
3. GROUND CIRCUIT CHECK Turn ignition switch OFF. Check continuity between third row power folding seat control unit harness connector B402 terminals 16, 18, 21 and ground. CONTINUITY CHART Terminals Continuity (+) (-) Connector Terminal B402 16 Ground Yes 18 21 Do all terminals have ground? YES: Inspection End. NO: Check harness for ground.

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1. CHECK THIRD ROW POWER FOLDING SEAT SWITCH OPERATION Turn ignition switch OFF. Disconnect third row power folding seat switch. Check continuity between third row power folding seat switch terminals 2, 3 and 4. CONTINUITY CHART Terminals Condition Continuity 2 4 Press switch button to fold up. Yes 3 4 Press switch button to fold down. Yes Do you have continuity? YES: Inspection End. NO: Replace third row power folding seat switch. Refer to " «REMOVAL AND INSTALLATION»(ref-382173-S02337537752011011400000) ".

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1. CHECK MOTOR OPERATION Turn ignition switch OFF. Disconnect third row power folding seat motor connector B403 or B426. Check operation by applying battery voltage to motor terminals 3 and 4. CAUTION: Do not operate motor for more than 3 seconds. Be careful not to overheat the harness. Third row power folding seat control unit may have to relearn fold up/down positions after testing. TERMINAL REFERENCE LH (60%) seat Terminal Motor Seat 3 (Battery positive) - 4 (Battery negative) Rotates counter-clockwise Up 4 (Battery positive) - 3 (Battery negative) Rotates clockwise Down TERMINAL REFERENCE RH (40%) seat Terminal Motor Seat 3 (Battery positive) - 4 (Battery negative) Rotates counter-clockwise Down 4 (Battery positive) - 3 (Battery negative) Rotates clockwise Up Does the motor rotate in both directions? YES: GO TO 2 . NO: Replace third row power seat motor. Refer to " «EXPLODED VIEW»(ref-382174-S09286286382011011400000) ".
2. CHECK RESISTANCE IN MOTOR Check resistance between motor terminals 3 and 4. 3 - 4 : Approx. 0.5 ohms Is the resistance reading of the motor normal? YES: Inspection End. NO: Replace third row power seat motor. Refer to " «EXPLODED VIEW»(ref-382174-S09286286382011011400000) ".

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OPERATION PROCEDURE

1. Connect both battery cables. NOTE: Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the "ACC" position. At this time, the steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the "LOCK" position before connecting the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.