Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mazda >> 2014 >> 3 SV, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Seats >> Seat System >> Power Seat System Inspection >> Diagnostic Procedure

Diagnostic Procedure

DIAGNOSTIC PROCEDURE

Step Inspection Action
1 INSPECT POWER SEAT CONNECTOR 
  • Disconnect the power seat connector.
  • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
  • Is the connector normal?
 Yes Go to the next step.
No
  • Repair or replace the connector.
  • After repair or replacement, go to Step 4.
2 POWER SEAT POWER SUPPLY CIRCUIT INSPECTION 
 Yes Go to the next step.
No Inspect the P.SEAT D 30 A fuse.
  • If the fuse is blown:
    • Refer to the wiring diagram and verify whether or not there is a common connector between P.SEAT D 30 A fuse and power seat connector terminal 6A.

      If there is a common connector: 

      • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
      • Repair or replace the malfunctioning part.

      If there is no common connector: 

      • Repair or replace the wiring harness which has a short to ground.
      • Replace the fuse.
  • If the fuse is damaged:
    • Replace the fuse.
  • If the fuse is normal:
    • Refer to the wiring diagram and verify whether or not there is a common connector between P.SEAT D 30 A and power seat connector terminal 6A.

      If there is a common connector: 

      • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
      • Repair or replace the malfunctioning part.

      If there is no common connector: 

      • Repair or replace the wiring harness which has an open circuit.

Go to Step 4.
3 INSPECT POWER SEAT GROUND CIRCUIT FOR OPEN CIRCUIT 
  • Verify that the power seat connector is disconnected.
  • Inspect for continuity between power seat terminal 6B (vehicle wiring harness side) and body ground.
  • Is there continuity?
 Yes Replace the front seat.
(See FRONT SEAT REMOVAL/INSTALLATION .)
No
  • Repair or replace the wiring harness which has an open circuit.
  • After repair or replacement, go to Step 4.
4 VERIFY THAT REPAIRS HAVE BEEN COMPLETED 
 Yes The power seat system inspection is completed.
No Repeat the inspection from Step 1.
scientia non olet · About Mike's Workshop Manuals