Power Seat Adjuster Mechanical Diagnosis
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Power Seat Adjuster Mechanical Diagnosis
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Condition
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Possible Cause
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Correction
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Horizontal Operation of Seat Not Smooth but Jerky-Apparent Hard Operation
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Check for debris under seat in track.
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The adjuster horizontal actuator is damaged.
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Replace the adjuster assembly.
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Horizontal Chuck or Looseness
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The horizontal actuator is improperly adjusted to the rack.
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The top plate subassembly is loose.
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Drive screw for adjuster is worn.
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Replace the adjuster assembly.
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Replace the adjuster assembly.
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Replace the adjuster assembly.
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One Adjuster Will Not Operate Horizontally
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The horizontal drive cable is disconnected or damaged.
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The horizontal actuator is inoperative.
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Inspect the drive cables, they must be straight to be engaged. Replace if necessary.
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Replace the adjuster assembly.
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One Adjuster Will not Operate Vertically
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The vertical drive cable is disconnected or damaged.
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The vertical actuator subassembly is inoperative.
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Inspect the vertical drive cables, replace if damaged.
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Replace the adjuster assembly.
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Both Adjusters Will Not Operate Horizontally and/or Vertically
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The actuator is damaged or inoperative.
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The wiring harness is damaged.
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Replace the adjuster assembly
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Replace the wiring harness.
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Vertical Chuck or Looseness
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The vertical actuator is inoperative.
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Replace the adjuster assembly.
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