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HOMESERVICE MANUALSFORD2010TAURUS SEL, FWDREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSHANDLES, LOCKS, LATCHES AND ENTRY SYSTEMSDIAGNOSIS AND TESTINGHANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS - INTEGRATED KEYHEAD TRANSMITTER (IKT)SYMPTOM CHART
2010 Ford Taurus SEL, FWD

Symptom Chart

2010 Ford Taurus SEL, FWDSECTION Symptom Chart
SYMPTOM CHART - ELECTRICAL

Condition Possible Sources Action
  • No communication with the Smart Junction Box (SJB)
  • Fuse(s)
  • Wiring, terminals or connectors
  • SJB 
  • No communication with the Driver Door Module (DDM)
  • Fuse(s)
  • Wiring, terminals or connectors
  • DDM 
  • No communication with the Instrument Panel Cluster (IPC)
  • Fuse
  • Wiring, terminals or connectors
  • IPC 
  • All door locks are inoperative
  • Fuse
  • Wiring, terminals or connectors
  • Luggage compartment lid latch
  • SJB 
  • A single/more than one door lock is inoperative - without memory
  • Wiring, terminals or connectors
  • Door lock actuator (part of the door latch)
  • SJB 
  • A single/more than one door lock is inoperative - with memory
  • Fuse
  • Wiring, terminals or connectors
  • Door lock actuator (part of the door latch)
  • Luggage compartment lid latch
  • DDM 
  • SJB 
  • All door locks are inoperative from one switch - without memory
  • Wiring, terminals or connectors
  • Door lock control switch
  • All door locks are inoperative from one switch - with memory
  • Wiring, terminals or connectors
  • Door lock control switch
  • DDM 
  • SJB 
  • The door lock switches operate only one way - without memory
  • Wiring, terminals or connectors
  • Door lock control switch
  • SJB 
  • The door lock switches operate only one way - with memory
  • Wiring, terminals or connectors
  • Door lock control switch
  • DDM 
  • SJB 
  • The luggage compartment lid latch release is inoperative/does not operate correctly
  • Wiring, terminals or connectors
  • Luggage compartment lid release switch
  • Luggage compartment lid latch
  • SJB 
  • The doors do not lock/unlock using the keyless entry keypad
  • Fuse
  • Wiring, terminals or connectors
  • Keyless entry keypad
  • SJB 
  • The keyless entry keypad illumination is inoperative/does not operate correctly
  • Wiring, terminals or connectors
  • Keyless entry keypad
  • SJB 
  • The Remote Keyless Entry (RKE) transmitter is inoperative
  • Integrated Keyhead Transmitter (IKT)
  • IKT  battery
  • IKT  button pressed a substantial amount of times while outside the range of the vehicle
  • IKT  programming
  • SJB 
  • An individual button/feature is inoperative from the Remote Keyless Entry (RKE) transmitter
  • Door locks
  • Horn system
  • Luggage compartment lid release
  • Turn signal system
  • IKT 
  • The Remote Keyless Entry (RKE) transmitter has poor range performance
  • IKT 
  • IKT  battery
  • Aftermarket systems
  • High power devices
  • TV/radio transmission towers
  • SJB 
  • The autolock does not operate correctly
  • Ignition switch
  • Door ajar switches
  • Vehicle speed signal
  • Transmission Range (TR) sensor input
  • SJB 
  • The auto-unlock does not operate correctly
  • Door ajar switches
  • Ignition switch
  • Vehicle speed signal
  • SJB 
  • The smart unlock does not operate correctly
  • LH front door ajar switch
  • RH front door ajar switch
  • Key-in-ignition switch
  • SJB 
  • The memory seat does not operate correctly using the Remote Keyless Entry (RKE) transmitter
  • DDM 
  • SJB 
  • The 2-step door unlocking does not operate correctly
  • 2-step door unlocking is disabled
SYMPTOM CHART - MECHANICAL

Condition Possible Sources Action
  • Hard to open/close door from either door handle
  • Door alignment
  • Door hinges
  • Striker adjustment
  • Door latch
  • A door is difficult/does not open from the exterior door handle
  • Broken or binding linkage
  • Exterior door handle reinforcement
  • Door latch
  • A door is difficult/does not open from the interior door handle
  • Broken or binding cable/linkage
  • Door latch
  • Exterior door release handle sticks
  • Binding linkage
  • Broken handle return spring
  • Door latch
  • Interior door release handle sticks
  • Binding cable
  • Broken handle return spring
  • Door latch
  • Manual interior lock/unlock rod inoperative
  • Bent or binding lock rod
  • Door latch
  • OPERATE the door lock rod manually while observing the door lock rod for any binding or if the rod is bent.
    • If the rod is bent or damaged, REPAIR as necessary. TEST the system for normal operation.
    • If the rod is OK, INSTALL a new door latch. REFER to FRONT DOOR LATCH  or REAR DOOR LATCH . TEST the system for normal operation.
  • Squeak/rattle/chucking noise from door
  • Door alignment
  • Striker adjustment
  • Door latch
  • Manual door lock cylinder inoperative
  • Bent or binding lock rod and lever
  • Door lock cylinder
  • Door latch
  • Ignition key cannot be returned to OFF position
  • Wiring, terminals or connectors
  • Transmission selector lever
  • Ignition lock cylinder
  • Ignition switch
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.