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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1382 (Anti-Lock Brake System - Vehicle Dynamic Systems) >> Diagnosis & Testing >> Anti-Lock Control >> Pinpoint Tests >> Pinpoint Test E: DTC C1095 - ABS Hydraulic Pump Motor Circuit Failure >> Pinpoint Test E: DTC C1095 - Abs Hydraulic Pump Motor Circuit Failure

Pinpoint Test E: DTC C1095 - Abs Hydraulic Pump Motor Circuit Failure

WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.
  1. E1 CHECK THE ABS PUMP MOTOR 
    • Key in ON position.
    • Is the ABS pump motor running all the time? 
    1. YES  : Go to  E5.
    2. NO  : Go to  E2.
  2. E2 CHECK THE PUMP MOTOR OUTPUT COMMAND (PMP_MOTOR) 
    • Key in OFF position.
    • Connect the diagnostic tool.
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: ABS DataLogger
    • Toggle the PMP_MOTOR output command ON.
    • Does the ABS pump motor run for approximately 3 seconds? 
    1. YES  : TOGGLE the PMP_MOTOR output command OFF. CLEAR the DTCs.

      CHECK the yellow ABS warning indicator while driving the vehicle (brakes must not be applied) above 20 km/h (12 mph). If the yellow ABS warning indicator illuminates, RETRIEVE the DTCs.

      If DTC C1095 is retrieved, go to  E5.

      If a different DTC is retrieved, refer to the ABS Module DTC Chart.

      If the yellow ABS warning indicator does not illuminate, the system is OK.

    2. NO  : TOGGLE the PMP_MOTOR output command OFF. Go to  E3 .
  3. E3 CHECK THE VOLTAGE TO THE ABS MODULE 
    • Key in OFF position.
    • Disconnect: ABS Module C135
    • Key in ON position.
      • Fig 1: Measuring Voltage Between ABS Module C155-1, Circuit SBB06 (BN/RD) & Ground
      GF0027309Courtesy of FORD MOTOR CO.
    • Measure the voltage between ABS module C135-1, circuit SBB08 (VT/RD), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  E4.
    2. NO  : VERIFY BJB fuse 8 (40A) is OK. If OK, REPAIR circuit SBB08 (VT/RD). CLEAR the DTCs. REPEAT the self-test.
  4. E4 CHECK CIRCUIT GD123 (BK/GY) FOR AN OPEN 
      Fig 2: Measuring Resistance Between ABS Module C155-16, Circuit GD120 (BK/GN) & Ground
      GF0027308Courtesy of FORD MOTOR CO.
    • Measure the resistance between ABS module C135-16, circuit GD123 (BK/GY), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  E5.
    2. NO  : REPAIR circuit GD123 (BK/GY). CLEAR the DTCs. REPEAT the self-test.
  5. E5 CHECK FOR CORRECT ABS MODULE OPERATION 
    • Key in OFF position.
    • Disconnect: ABS Module C135
    • Check the connector 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? 
    1. YES  : INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module . CLEAR the DTCs. REPEAT the self-test.
    2. 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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