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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1708 (Anti-Lock Brake System - Vehicle Dynamic Systems) >> Diagnosis And Testing >> Anti-Lock Control - Hybrid >> Pinpoint Tests >> Pinpoint Test O: DTCs U3003:16 and 17 >> PINPOINT TEST O: DTCs U3003:16 AND 17

PINPOINT TEST O: DTCs U3003:16 AND 17

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: DTCs U3003:16 and 17 can set if the vehicle has been recently jump started, the 12-volt battery has been recently charged or the 12-volt battery has been discharged. The 12-volt battery may become discharged due to excessive load(s) on the charging system from aftermarket accessories or if the battery has been left unattended with the accessories on.
NOTE: Carry out a thorough inspection and verification before proceeding with the pinpoint test. Refer to INSPECTION AND VERIFICATION  in this service information.
  1. O1 VERIFY ALL WIRING CONNECTIONS 
    • Disconnect: ABS Module C135.
    • Using a good light source, inspect each connector terminal for any corrosion.
    • Inspect both connectors for any pushed-out pins. Refer to SYSTEM WIRING DIAGRAMS article for schematic and connector information.
    • Using a suitable mating terminal, check each female terminal for deformed or enlarged contacts by comparing the mating terminal's fit between each of the following pins:
      • C135-1
      • C135-8
      • C135-16
      • C135-32
      • C135-47
      Fig 1: Identifying ABS Module Connector Terminals
      G07784308Courtesy of FORD MOTOR CO.
    • Refer to SYSTEM WIRING DIAGRAMS article for schematic and connector information.
    • Is each terminal free of corrosion, pushed-out pins or spread terminals? 
    • Yes  : GO to O2.
    • No  : REPAIR the affected terminal(s). CLEAR the DTCs. REPEAT the self-test.
  2. O2 RETRIEVE ALL CMDTCs IN ALL MODULES 
    • Connect: ABS Module C135.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - All CMDTCs.
    • Is DTC U3003:16 or 17, DTCs B1317, B1318 and/or B1676 present in one or more modules AND DTC P0563, P0620, P0625, P0626 or P065B present in the PCM? 
  3. O3 CHECK BATTERY CONDITION 
    • Yes  : If the battery passed the condition test but required a recharge, REFER to CHARGING SYSTEM -- FUSION, MILAN & MKZ article to diagnose the charging system. CLEAR all Continuous Memory Diagnostic Trouble Codes (CMDTCs). TEST the system for normal operation.

      If the battery passed the condition test and did not require a recharge, GO to O4.

    • No  : INSTALL a new battery. CLEAR all CMDTCs. TEST the system for normal operation.
  4. O4 CHECK CHARGING SYSTEM VOLTAGE 
    • Start the vehicle, verify that the ready indicator is illuminated.
    • Measure the voltage of the battery with and without a load on the charging system as follows:
      • Turn off all accessories and measure battery voltage.
      • Turn on headlights and HVAC fan on high and measure battery voltage.
      Fig 2: Checking Charging System Voltage
      G07784309Courtesy of FORD MOTOR CO.
    • Are the voltages between 13 and 15.2 volts? 
  5. O5 CHECK THE ABS MODULE GROUND CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: ABS Module C135.
    • Measure the resistance between ground and:
      • ABS module C135-16, circuit GD121 (BK/YE), harness side.
      • ABS module C135-47, circuit GD121 (BK/YE), harness side.
      • Repeat this measurement while wiggling the harness.
      Fig 3: Checking ABS Module Ground Circuit For Open
      G07784310Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to O6.
    • No  : REPAIR circuit GD121 (BK/YE). CLEAR all CMDTCs. REPEAT the self-test.
  6. O6 CHECK FOR VOLTAGE AT THE ABS MODULE 
    • Ignition ON.
    • Measure the voltage between ground and:
      • ABS module C135-1, SBB08 (VT/RD), harness side.
      • ABS module C135-8, CBK03 (GY), harness side.
      • ABS module C135-32, SBB10 (YE/RD), harness side.
      Fig 4: Checking ABS Module Voltage
      G07784311Courtesy of FORD MOTOR CO.
    • Are the voltages greater than 10 volts? 
    • Yes  : GO to O7.
    • No  : VERIFY that BJB fuses 8 (50A), 10 (30A) and 47 (10A) are OK. If OK, REPAIR the affected circuit(s).

      If the fuses are not OK, REFER to the SYSTEM WIRING DIAGRAMS article to identify the possible causes of the circuit short.

      CLEAR the DTCs and REPEAT the self-test.

  7. O7 CHECK FOR CORRECT ABS MODULE OPERATION 
    • Ignition OFF.
    • Disconnect: ABS Module C135.
    • Check for:
      • corrosion
      • pushed-out pins
      • spread terminals
    • Connect: ABS Module C135.
    • Make sure the connector seats correctly, then operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes  : INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE - HYBRID  in this service information. TEST the system for normal operation.
    • No  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
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