Ford Taurus Service Manual: Diagnosis and Testing

Handles, Locks, Latches and Entry Systems

Special Tool(s)

Ford Taurus. Body

Material

Ford Taurus. Body

DTC Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

BCM DTC Chart

Ford Taurus. Body

Symptom Charts

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Symptom Chart - Mechanical

Ford Taurus. Body

Ford Taurus. Body

Symptom Chart - Electrical

Ford Taurus. Body

Ford Taurus. Body

Pinpoint Tests

Pinpoint Test A: Hard To Open Or Close Door From Either Door Handle

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Normal Operation and Fault Conditions

The door latch can be actuated from the interior or exterior door handle. When actuated, the door latch releases and allows the door to open. If the door latch or the door hinges have insufficient lubrication or if the striker or door are misaligned, it causes extra force to be used when opening or closing the door.

    Possible Sources
  • Door alignment
  • Door hinges
  • Striker adjustment
  • Door latch

PINPOINT TEST A: HARD TO OPEN OR CLOSE DOOR FROM EITHER DOOR HANDLE

Ford Taurus. Body

Ford Taurus. Body

Pinpoint Test B: A Door Is Difficult Or Does Not Open From The Exterior Door Handle

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Normal Operation and Fault Conditions

The exterior door handle is connected to the door latch with an actuating rod. When the exterior door handle is pulled, the actuating rod pushes down on the latch lever. When the latch lever is moved, the door latch releases, allowing the door to open.

    Possible Sources
  • Broken or binding linkage
  • Exterior door handle reinforcement
  • Door latch

PINPOINT TEST B: A DOOR IS DIFFICULT OR DOES NOT OPEN FROM THE EXTERIOR DOOR HANDLE

Ford Taurus. Body

Pinpoint Test C: A Door Is Difficult Or Does Not Open From The Interior Door Handle

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Normal Operation and Fault Conditions

The interior door handle is connected to the door latch by an actuating cable. When the interior door handle is pulled, the cable pulls on the latch lever. When the latch lever is moved, the door latch releases, allowing the door to open.

    Possible Sources
  • Broken or binding cable/linkage
  • Door latch

Visual Inspection and Diagnostic Pre-checks

  • For the rear doors, make sure the child proof lock is in the unlock position.

PINPOINT TEST C: A DOOR IS DIFFICULT/DOES NOT OPEN FROM THE INTERIOR DOOR HANDLE

Ford Taurus. Body

Pinpoint Test D: The Exterior Door Release Handle Sticks

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Normal Operation and Fault Conditions

The exterior door handle is connected to the door latch with an actuating rod. When the exterior door handle is pulled, the actuating rod pushes down on the latch lever. When the latch lever is moved, the door latch releases, allowing the door to open. The handle has a return spring to make sure the handle returns to a closed position.

    Possible Sources
  • Binding linkage
  • Broken handle return spring
  • Door latch

PINPOINT TEST D: THE EXTERIOR DOOR RELEASE HANDLE STICKS

Ford Taurus. Body

Pinpoint Test E: The Interior Door Release Handle Sticks

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Normal Operation and Fault Conditions

The interior door handle is connected to the door latch by an actuating cable. When the interior door handle is pulled, the cable pulls on the latch lever. When the latch lever is moved, the door latch releases, allowing the door to open. The handle has a return spring to make sure the handle returns to a closed position.

    Possible Sources
  • Binding cable
  • Broken handle return spring
  • Door latch

PINPOINT TEST E: THE INTERIOR DOOR RELEASE HANDLE STICKS

Ford Taurus. Body

Pinpoint Test F: Squeak-Rattle-Chucking Noise From Door

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

    Possible Sources
  • Door alignment
  • Striker adjustment
  • Door latch

PINPOINT TEST F: SQUEAK-RATTLE-CHUCKING NOISE FROM DOOR

Ford Taurus. Body

Pinpoint Test G: The Manual Door Lock Cylinder Is Inoperative

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Normal Operation and Fault Conditions

The door lock cylinder is connected to the door latch via a lock rod and can be used to manually lock/unlock the door.

    Possible Sources
  • Bent or binding lock rod and lever
  • Door lock cylinder
  • Door latch

PINPOINT TEST G: THE MANUAL DOOR LOCK CYLINDER IS INOPERATIVE

Ford Taurus. Body

Pinpoint Test H: Ignition Lock Cylinder Difficult To Turn

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Normal Operation and Fault Conditions

The ignition lock cylinder mechanically rotates the ignition switch within the ignition lock cylinder housing. Insertion and extraction of the key and rotation of the lock cylinder using a correctly cut key should be smooth and require minimal effort.

    Possible Sources
  • Key
  • Ignition switch
  • Ignition lock cylinder

PINPOINT TEST H: IGNITION LOCK CYLINDER DIFFICULT TO TURN

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Pinpoint Test I: All Door Locks Are Inoperative

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 117, Remote Keyless Entry and Alarm for schematic and connector information.

Normal Operation and Fault Conditions

Refer to System Operation - Power Door Locks in Handles, Locks, Latches and Entry Systems.

    Possible Sources
  • Fuse
  • Wiring, terminals or connectors
  • BCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the BCM fuse 20 (20A) and make sure it is OK.

PINPOINT TEST I: ALL DOOR LOCKS ARE INOPERATIVE

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Pinpoint Test J: A Single Or More Than One Door Lock Is Inoperative

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 117, Remote Keyless Entry and Alarm for schematic and connector information.

Normal Operation and Fault Conditions

Refer to System Operation - Power Door Locks in Handles, Locks, Latches and Entry Systems.

    Possible Sources
  • Wiring, terminals or connectors
  • Door latch
  • BCM

PINPOINT TEST J: A SINGLE OR MORE THAN ONE DOOR LOCK IS INOPERATIVE

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Pinpoint Test K: The Door Locks Operate Only One Way

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 117, Remote Keyless Entry and Alarm for schematic and connector information.

Normal Operation and Fault Conditions

Refer to System Operation - Power Door Locks in Handles, Locks, Latches and Entry Systems.

Refer to Component Description - Door Lock Control Switch in Handles, Locks, Latches and Entry Systems.

BCM DTC Fault Trigger Conditions

Ford Taurus. Body

    Possible Sources
  • Wiring, terminals or connectors
  • Door lock control switch

Visual Inspection and Diagnostic Pre-checks

  • Inspect the door lock control switches for damage.

PINPOINT TEST K: THE DOOR LOCKS OPERATE ONLY ONE WAY

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Pinpoint Test L: All Door Locks Are Inoperative From One Switch

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 117, Remote Keyless Entry and Alarm for schematic and connector information.

Normal Operation and Fault Conditions

Refer to System Operation - Power Door Locks in Handles, Locks, Latches and Entry Systems.

Refer to Component Description - Door Lock Control Switch in Handles, Locks, Latches and Entry Systems.

    Possible Sources
  • Wiring, terminals or connectors
  • Door lock control switch

Visual Inspection and Diagnostic Pre-checks

  • Inspect the door lock control switches for damage.

PINPOINT TEST L: ALL DOOR LOCKS ARE INOPERATIVE FROM ONE SWITCH

Ford Taurus. Body

Pinpoint Test M: The Luggage Compartment Lid Latch Release Is Inoperative

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 117, Remote Keyless Entry and Alarm for schematic and connector information.

Normal Operation and Fault Conditions

Refer to System Operation - Luggage Compartment Lid Release in Handles, Locks, Latches and Entry Systems.

BCM DTC Fault Trigger Conditions

Ford Taurus. Body

    Possible Sources
  • Wiring, terminals or connectors
  • Luggage compartment lid latch
  • BCM

PINPOINT TEST M: THE LUGGAGE COMPARTMENT LID LATCH RELEASE IS INOPERATIVE

NOTE: If the luggage compartment lid releases from the switch but not the RKE transmitter, GO to Pinpoint Test Q.

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Pinpoint Test N: The Doors Do Not Lock Or Unlock Using The Keyless Entry Keypad

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 117, Remote Keyless Entry and Alarm for schematic and connector information.

Normal Operation and Fault Conditions

Refer to System Operation - Keyless Entry Keypad in Handles, Locks, Latches and Entry Systems.

Refer to Component Description - Keyless Entry Keypad in Handles, Locks, Latches and Entry Systems.

BCM DTC Fault Trigger Conditions

Ford Taurus. Body

    Possible Sources
  • Wiring, terminals or connectors
  • Keyless entry keypad
  • BCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the keyless entry keypad for damage.
  • Inspect the BCM fuse 7 (7.5A) and make sure it is OK.

PINPOINT TEST N: THE DOORS DO NOT LOCK/UNLOCK USING THE KEYLESS ENTRY KEYPAD

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Pinpoint Test O: The Keyless Entry Keypad Illumination Is Inoperative Or Always On

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Refer to Wiring Diagrams Cell 117, Remote Keyless Entry and Alarm for schematic and connector information.

Normal Operation and Fault Conditions

Refer to System Operation - Keyless Entry Keypad in Handles, Locks, Latches and Entry Systems.

Refer to Component Description - Keyless Entry Keypad in Handles, Locks, Latches and Entry Systems.

BCM DTC Fault Trigger Conditions

Ford Taurus. Body

    Possible Sources
  • Wiring, terminals or connectors
  • Keyless entry keypad
  • BCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the keyless entry keypad for damage.

PINPOINT TEST O: THE KEYLESS ENTRY KEYPAD ILLUMINATION IS INOPERATIVE OR ALWAYS ON

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Pinpoint Test P: The RKE Transmitter Is Inoperative

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Normal Operation and Fault Conditions

Refer to System Operation - Remote Keyless Entry (RKE) in Handles, Locks, Latches and Entry Systems.

Refer to Component Description - Integrated Keyhead Transmitter (IKT) in Handles, Locks, Latches and Entry Systems.

BCM DTC Fault Trigger Conditions

Ford Taurus. Body

    Possible Sources
  • IKT
  • IKT battery
  • IKT button pressed a substantial amount of times while outside the range of the vehicle
  • IKT programming
  • TPM module
  • BCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the IKT for damage.
  • Check for aftermarket RKE transmitters.

PINPOINT TEST P: THE RKE TRANSMITTER IS INOPERATIVE

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Pinpoint Test Q: An Individual Button Or Feature Is Inoperative From The RKE Transmitter

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Normal Operation and Fault Conditions

Refer to System Operation - Remote Keyless Entry (RKE) in Handles, Locks, Latches and Entry Systems.

Refer to Component Description - Integrated Keyhead Transmitter (IKT) in Handles, Locks, Latches and Entry Systems.

    Possible Sources
  • Door lock system concern
  • Horn system concern
  • Luggage compartment lid release system concern
  • Factory remote start system concern
  • Turn signal system concern
  • IKT
  • BCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the IKT for damage.

PINPOINT TEST Q: AN INDIVIDUAL BUTTON OR FEATURE IS INOPERATIVE FROM THE RKE TRANSMITTER

Ford Taurus. Body

Ford Taurus. Body

Ford Taurus. Body

Pinpoint Test R: The RKE Transmitter Has Poor Range Performance

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Section 100-00 for information about these practices.

Normal Operation and Fault Conditions

The RKE transmitter has a normal operating range of 20 m (65.62 ft). The TPM module has an internal antenna to receive the RKE transmitter signal.

    Possible Sources
  • IKT
  • IKT battery
  • Aftermarket system
  • High power devices
  • TV/radio transmission towers
  • TPM module

Visual Inspection and Diagnostic Pre-checks

  • Inspect the IKT for damage.
  • Inspect the IKT battery.
  • Inspect for aftermarket RKE systems.

PINPOINT TEST R: THE RKE TRANSMITTER HAS POOR RANGE PERFORMANCE

Ford Taurus. Body

Ford Taurus. Body

    Specifications, Description and Operation
    SPECIFICATIONS Material Torque Specifications DESCRIPTION AND OPERATION Handles, Locks, Latches and Entry Systems Overview The power lock/unlock feature locks or unlocks the doors upon a customer r ...

    General Procedures
    Remote Keyless Entry (RKE) Transmitter Programming NOTE: The Remote Keyless Entry (RKE) transmitter of the Integrated Keyhead Transmitter (IKT) is programmed automatically during the Passive An ...

    Other materials:

    Adjusting the steering wheel
    WARNING: Do not adjust the steering wheel when your vehicle is moving. Note: Make sure that you are sitting in the correct position. See Sitting in the Correct Position in the Seats chapter. 1. Unlock the steering column. 2. Adjust the steering wheel to the desired position. 3. Lock t ...

    Manual heating and air conditioning
    A. Fan speed control: Controls the volume of air circulated in your vehicle. Turn to select the desired fan speed or switch off. If you switch the fan off, the windshield may fog up. B. Defrost: Distributes air through the windshield defroster vents and demister vents. This setting can also ...

    Parking Aid - Audible
    SPECIFICATIONS General Specifications DESCRIPTION AND OPERATION Parking Aid Component Location Parking aid speaker PAM Parking aid sensors Overview The parking aid system sounds a warning to alert the driver of stationary objects near the rear bumper when REVERSE is selected. The rear sensor ...