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Pinpoint Test B : U2002:47, U2002:96

WARNING: This page is about a different variant/trim than selected.

  1. B1 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

    • Ignition ON.
    • Using a diagnostic scan tool, carry out the ABS module self-test.

    Is DTC U2002:96 present? 

    Yes  GO to  B2
    No  GO to  B3

  2. B2 CARRY OUT A PARKING BRAKE SWITCH RESET

    • Ignition OFF.
    • Ignition ON.
    • Apply and release the parking brake switch in the following manner, pausing for approximately one-half second each time the switch is in the NEUTRAL position:
      • APPLY
      • NEUTRAL - pause for one-half second
      • RELEASE
      • NEUTRAL - pause for one-half second
      • APPLY
      • NEUTRAL - pause for one-half second
      • RELEASE
      • NEUTRAL
    • Using a diagnostic scan tool, clear the ABS module Diagnostic Trouble Codes (DTCs).
    • Ignition OFF.
    • Ignition ON.
    • Using a diagnostic scan tool, carry out the ABS module self-test.

    Does DTC U2002:96 return? 

    Yes  GO to  B3
    No  The system is operating correctly at this time. The concern was most likely caused by a sticking or contaminated switch.

  3. B3 TEST THE PARKING BRAKE SWITCH IN THE APPLIED POSITION

    • Ignition OFF.
    • Disconnect EPB C306 .
    • With the parking brake switch in the applied position (switch pulled up), measure:
      Positive Lead Measurement / Action Negative Lead
      C306-5 (Component side)
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 C306-7 (Component side)
      C306-6 (Component side)
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 C306-8 (Component side)
      C306-4 (Component side)
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 C306-3 (Component side)

    Are the resistances less than 5 ohms? 

    Yes  GO to  B4
    No  INSTALL a new parking brake switch. Refer to: Parking Brake Switch . To restore parking brake switch functionality, CARRY OUT the following procedure; CYCLE the ignition from ON to OFF and back to ON.PLACE the parking brake switch in the APPLY position, then RELEASE the switch to the NEUTRAL position. PLACE the switch in the RELEASE position, then RELEASE the switch to the NEUTRAL position.REPEAT the procedure 1 time: PLACE the parking brake switch in the APPLY position, then RELEASE the switch to the NEUTRAL position. PLACE the switch in the RELEASE position, then RELEASE the switch to the NEUTRAL position.

  4. B4 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
      C306-4 (Component side)
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 C306-7 (Component side)
      C306-6 (Component side)
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 C306-3 (Component side)
      C306-5 (Component side)
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 C306-8 (Component side)

    Are the resistances less than 5 ohms? 

    Yes  GO to  B5
    No  INSTALL a new parking brake switch. Refer to: Parking Brake Switch . To restore parking brake switch functionality, CARRY OUT the following procedure; CYCLE the ignition from ON to OFF and back to ON.PLACE the parking brake switch in the APPLY position, then RELEASE the switch to the NEUTRAL position. PLACE the switch in the RELEASE position, then RELEASE the switch to the NEUTRAL position.REPEAT the procedure 1 time: PLACE the parking brake switch in the APPLY position, then RELEASE the switch to the NEUTRAL position. PLACE the switch in the RELEASE position, then RELEASE the switch to the NEUTRAL position.

  5. B5 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR A SHORT TO GROUND

    • Disconnect ABS module C135 .
    • Disconnect parking brake switch C306 .
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C306-3
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 Ground
      C306-4
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 Ground
      C306-5
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 Ground
      C306-6
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 Ground
      C306-7
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 Ground
      C306-8
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  B6
    No  REPAIR the circuit.

  6. B6 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR AN OPEN

    Are the resistances less than 3 ohms? 

    Yes  GO to  B7
    No  REPAIR the circuit.

  7. B7 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR A SHORT TOGETHER

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  B8
    No  REPAIR the circuit.

  8. B8 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR A SHORT TO VOLTAGE

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

    • Ignition ON.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C306-3
      GFD66576Courtesy of FORD MOTOR COMPANY
      		 Ground
      C306-4
      GFD66576Courtesy of FORD MOTOR COMPANY
      		 Ground
      C306-5
      GFD66576Courtesy of FORD MOTOR COMPANY
      		 Ground
      C306-6
      GFD66576Courtesy of FORD MOTOR COMPANY
      		 Ground
      C306-7
      GFD66576Courtesy of FORD MOTOR COMPANY
      		 Ground
      C306-8
      GFD66576Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit.
    No  GO to  B9

  9. B9 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

    • Ignition OFF.
    • Inspect ABS module C135 .
    • Repair:
      • corrosion (install new connector or terminal - clean module pins)
      • damaged or bent pins - install new terminals or pins
      • pushed-out pins - install new pins as necessary
    • Connect ABS module C135 . Make sure it seats and latches correctly.
    • Connect parking brake switch. Make sure it seats and latches correctly.
    • Perform the following steps to restore parking brake switch functionality:
      • Place the switch in the APPLY position.
      • Release the switch to the NEUTRAL position.
      • Place the switch in the RELEASE position.
      • Release the switch to the NEUTRAL position.
      • Repeat the 4 steps.
    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    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. For hybrid vehicles, if no Technical Service Bulletins (TSBs) exist for this concern, INSTALL a new ABS module. REFER to: Anti-Lock Brake System (ABS) Module . For all other vehicles, if no Technical Service Bulletins (TSBs) exist for this concern, Refer to Anti-Lock Brake System Component Testing (Except Hybrid/Energi) .
    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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