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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 570 (Handles, Locks, Latches And Entry Systems) >> Diagnosis And Testing >> Locks, Latches and Entry Systems >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM CHART

Condition Possible Sources Action
  • No communication with the vehicle security module
  • Circuit or connection in the universal asynchronous receiver-transmitter (UART)-based protocol (UBP) network.
  • Vehicle security module.
  • A single/more than 1 door lock is inoperative
  • Door lock control switches.
  • Door lock actuators.
  • Circuitry.
  • Vehicle security module.
  • The doors do not lock/unlock using the keyless entry keypad
  • Keyless entry keypad.
  • Circuitry.
  • Vehicle security module.
  • The doors do not lock/unlock using the remote transmitter
  • Remote transmitter battery.
  • Remote transmitter.
  • Remote transmitter programming.
  • Aftermarket system.
  • High power devices.
  • TV/radio transmission towers.
  • Vehicle security module.
  • The autolock does not operate correctly
  • Door ajar switches.
  • Circuitry.
  • Universal asynchronous receiver-transmitter (UART)-based protocol (UBP) network.
  • Vehicle security module.
  • Panic feature is inoperative/does not operate correctly
  • Remote transmitter.
  • Circuitry.
  • Vehicle security module.
  • The keyless entry keypad illumination is inoperative
  • Keyless entry keypad.
  • Circuitry.
  • Vehicle security module.
  • The remote keyless entry transmitter is out of synchronization
  • Remote transmitter.
  • Remote transmitter button pressed a substantial amount of time while outside the range of the vehicle.
  • Vehicle security module.
  • The smart lock does not operate correctly
  • Circuitry.
  • Door lock control switches.
  • LH front door ajar switch
  • Universal asynchronous receiver-transmitter (UART)-based protocol (UBP) network.
  • Vehicle security module.
  • The liftgate window glass release is inoperative
  • Circuitry.
  • Liftgate window glass release switch.
  • Liftgate window glass release actuator.
  • Vehicle security module.
  • The liftgate window glass does not release using the remote transmitter
  • Remote transmitter battery.
  • Remote transmitter.
  • Vehicle security module.
  • The remote transmitter has poor range performance
  • Aftermarket systems.
  • High power devices.
  • TV/radio transmission towers.
  • Remote transmitter.
  • Vehicle security module.
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