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Home >> Ford >> 2012 >> Taurus Limited, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 3248 (Parking Brake System - Parking Brake And Actuation - Vehicles With: Electronic Parking Brake (EPB)) >> Diagnosis And Testing >> Parking Brake >> Pinpoint Tests >> Pinpoint Test B : U2002:13, U2002:62, U2002:64, U2002:92 >> Pinpoint Test B : U2002:13, U2002:62, U2002:64, U2002:92

Pinpoint Test B : U2002:13, U2002:62, U2002:64, U2002:92

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

  1. B1 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.

    • Disconnect EPB module C3675 .

    • Disconnect parking brake switch C2015 .

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2015-3
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2015-4
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2015-5
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2015-6
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2015-7
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2015-8
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  B2
    No  REPAIR the circuit.

  2. B2 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR AN OPEN

    Are the resistances less than 3 ohms? 

    Yes  GO to  B3
    No  REPAIR the circuit.

  3. B3 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR A SHORT TOGETHER

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  B4
    No  REPAIR the circuit.

  4. B4 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR A SHORT TO VOLTAGE

    NOTE: Performing this step sets Diagnostic Trouble Codes (DTCs) in the EPB module.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2015-3
      GFD180798Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2015-4
      GFD180798Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2015-5
      GFD180798Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2015-6
      GFD180798Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2015-7
      GFD180798Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2015-8
      GFD180798Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit.
    No  GO to  B5

  5. B5 TEST THE PARKING BRAKE SWITCH IN THE NEUTRAL POSITION

    • Ignition OFF.

    • With the parking brake switch in the neutral position (switch not  pulled up or pushed down), measure:
      Positive Lead Measurement / Action Negative Lead
      C2015-3
      Component Side 
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 C2015-5
      Component Side 
      C2015-4
      Component Side 
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 C2015-8
      Component Side 
      C2015-6
      Component Side 
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 C2015-7
      Component Side 

    Are the resistances less than 3 ohms? 

    Yes  GO to  B6
    No  INSTALL a new parking brake switch. Refer to: Parking Brake Switch . CARRY OUT the following procedure to restore parking brake switch functionality; CYCLE the ignition from ON to OFF and back to ON, then CYCLE the parking brake switch through all 3 positions: APPLY, NEUTRAL and RELEASE.

  6. B6 TEST THE PARKING BRAKE SWITCH IN THE APPLIED POSITION

    • With the parking brake switch in the applied position (switch pulled up), measure:
      Positive Lead Measurement / Action Negative Lead
      C2015-5
      Component Side 
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 C2015-7
      Component Side 
      C2015-6
      Component Side 
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 C2015-8
      Component Side 
      C2015-4
      Component Side 
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 C2015-3
      Component Side 

    Are the resistances less than 3 ohms? 

    Yes  GO to  B7
    No  INSTALL a new parking brake switch. REFER to: Parking Brake Switch . CARRY OUT the following procedure to restore parking brake switch functionality; CYCLE the ignition from ON to OFF and back to ON, then CYCLE the parking brake switch through all 3 positions: APPLY, NEUTRAL and RELEASE.

  7. B7 TEST THE PARKING BRAKE SWITCH IN THE RELEASED POSITION

    • With the parking brake switch in the released position (switch pushed down), measure:
      Positive Lead Measurement / Action Negative Lead
      C2015-4
      Component Side 
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 C2015-7
      Component Side 
      C2015-6
      Component Side 
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 C2015-3
      Component Side 
      C2015-5
      Component Side 
      GFD180799Courtesy of FORD MOTOR COMPANY
      		 C2015-8
      Component Side 

    Are the resistances less than 5 ohms? 

    Yes  GO to  B8
    No  INSTALL a new parking brake switch. REFER to: Parking Brake Switch . CARRY OUT the following procedure to restore parking brake switch functionality; CYCLE the ignition from ON to OFF and back to ON, then CYCLE the parking brake switch through all 3 positions: APPLY, NEUTRAL and RELEASE.

  8. B8 VERIFY ALL WIRING CONNECTIONS

    • Ignition OFF.

    • Disconnect EPB module C3675 (if not previously disconnected).

    • Disconnect all in-line electrical connectors between the EPB module and the parking brake switch.

    • Using a good light source, inspect the EPB module connector, parking brake switch connector and all related in-line connectors for the following:

      • corrosion - install new connector or terminal and clean the module pins
      • damaged or bent pins - install new terminals or pins
      • pushed-out pins - install new pins as necessary
      • spread terminals - install new terminals as necessary

    Are the connectors free of corrosion, damaged pins, bent pins, pushed-out pins and spread terminals? 

    Yes  GO to  B9
    No  REPAIR the connector or terminals. Refer to Connector Repair Procedures for schematic and connector information.

  9. B9 CHECK FOR CORRECT EPB (ELECTRIC PARKING BRAKE) MODULE OPERATION

    • Connect parking brake switch C2015 . Make sure it seats and latches correctly.

    • Connect all in-line electrical connectors between the EPB module and the parking brake switch. Make sure they seat and latch correctly.

    • Connect EPB module C3675 . Make sure it seats and latches correctly.

    • Ignition ON.

    • Perform the following steps:

      • Place the parking brake switch in the APPLY position.
      • Release the parking brake switch to the NEUTRAL position.
      • Place the parking brake switch in the RELEASE position.
      • Release the parking brake switch to the NEUTRAL position.

    • Using a diagnostic scan tool, clear the EPB module Diagnostic Trouble Codes (DTCs).

    • Ignition OFF.

    • Ignition ON.

    • Using a diagnostic scan tool, carry out the EPB module self-test.

    Does DTC U2002:13, U2002:62, U2002:64 or U2002:92 return? 

    Yes  CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new EPB module. Refer to: Park Brake Control Module (PBM) .
    No  The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
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