LEMON Manuals: Even more car manuals for everyone
Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 965 (Anti-Lock Brake System) >> Diagnostic Tests >> Anti-Lock Control >> Pinpoint Tests >> Pinpoint Test B: DTC C1095 - ABS Hydraulic Pump Motor Circuit Failure >> Pinpoint Test B: DTC C1095 - Abs Hydraulic Pump Motor Circuit Failure

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

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. 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 multimeter probes.
  1. B1 CHECK THE ABS PUMP MOTOR 
    • Key in ON position.
    • Is the ABS pump motor running all the time? 
    1. YES  : Go to  B5.
    2. NO  : Go to  B2.
  2. B2 CHECK THE PUMP MOTOR OPERATION 
    • Key in OFF position.
    • Connect the diagnostic tool.
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: ABS Module Active Command
    • Trigger the ABS module pump motor ON active command.
    • Does the ABS pump motor run for approximately 3 seconds? 
    1. YES  : CLEAR the DTCs. CHECK the yellow ABS warning indicator while driving the vehicle (brakes must not be applied) at greater than 32 km/h (20 mph). If the yellow ABS warning indicator illuminates, RETRIEVE the DTCs. If DTC C1095 is retrieved, Go to  B5 .
    2. NO  : TRIGGER the ABS module pump motor OFF active command. Go to  B3 .
  3. B3 CHECK CIRCUIT 534 (YE/LG) FOR AN OPEN 
    • For vehicles equipped with a 3.0L engine,  with the vehicle in NEUTRAL, position it on a hoist. Refer to JACKING AND LIFTING article.
    • Key in OFF position.
    • Disconnect: ABS Module C155
    • Key in ON position.
      • Fig 1: Checking Circuit For Open
      GF0024664Courtesy of FORD MOTOR CO.
    • Measure the voltage between ABS module C155-1, circuit 534 (YE/LG), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  B4.
    2. NO  : REPAIR circuit 534 (YE/LG). CLEAR the DTCs. REPEAT the self-test.
  4. B4 CHECK CIRCUIT 570 (BK/WH) FOR AN OPEN 
    • Key in OFF position.
      • Fig 2: Checking Circuit For Open
      GF0024665Courtesy of FORD MOTOR CO.
    • Measure the resistance between ABS module C155-47, circuit 570 (BK/WH), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new HCU. REFER to Hydraulic Control Unit (HCU) . CLEAR the DTCs. REPEAT the self-test.
    2. NO  : REPAIR circuit 570 (BK/WH). CLEAR the DTCs. REPEAT the self-test.
  5. B5 CHECK FOR CORRECT ABS MODULE OPERATION 
    • For vehicles equipped with a 3.0L engine,  with the vehicle in NEUTRAL, position it on a hoist. Refer to JACKING AND LIFTING article.
    • Disconnect the ABS connector.
    • Check for:
      • corrosion.
      • pushed-out pins.
      • spread terminals.
    • Connect the ABS connector and make sure it is seated correctly.
    • 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 . TEST the system for normal operation.
    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.
scientia non olet · About LEMON Manuals