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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 831 (Module Communications Network -- F250-F550 Super Duty) >> Diagnostic Tests >> Communications Network >> Pinpoint Tests >> Pinpoint Test B: The Anti-Lock Brake System (ABS) Module Does Not Respond To The Scan Tool >> Pinpoint Test B: The Anti-Lock Brake System (Abs) Module Does Not Respond To The Scan Tool

Pinpoint Test B: The Anti-Lock Brake System (Abs) Module Does Not Respond To The Scan Tool

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.
  1. B1 CHECK CIRCUITS 532 (OG/YE), 533 (TN/RD) AND 534 (YE/LG) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: ABS Module C135
    • Key in ON position.
    • Measure the voltage between the ABS module C135-31, circuit 532 (OG/YE), C135-32, circuit 533 (TN/RD), and C135-2, circuit 534 (YE/LG), harness side and ground.
      Fig 1: Checking Circuits 532 (OG/YE), 533 (TN/RD) And 534 (YE/LG) For Open
      GF0006724Courtesy of FORD MOTOR CO.
    • Are the voltages greater than 10 volts? 
    1. YES  : Go to  B2.
    2. NO  : VERIFY the battery junction box (BJB) fuses 11 (10A), 22 (60A) and 23 (60A) are OK. If OK, REPAIR the circuit in question. CLEAR the DTCs. REPEAT the network test with the scan tool.
  2. B2 CHECK CIRCUIT 530 (LG/YE) FOR AN OPEN 
    • Key in OFF position.
    • Measure the resistance between the ABS module C135-16 circuit 530 (LG/YE) and C135-45, circuit 530 (LG/YE), harness side and ground.
      Fig 2: Checking Circuit 530 (LG/YE) For Open
      GF0006725Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  B3.
    2. NO  : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the network test with the scan tool.
  3. B3 CHECK THE HS-CAN CIRCUITS BETWEEN THE ABS MODULE AND THE DATA LINK CONNECTOR (DLC) FOR AN OPEN 
    • Measure the resistance between the ABS module C135-3, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the ABS module C135-18, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side.
      Fig 3: Checking HS-CAN Circuits Between ABS Module And Data Link Connector (DLC) For Open
      GF0008381Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  B4.
    2. NO  : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the network test with the scan tool.
  4. B4 CHECK FOR CORRECT ABS MODULE OPERATION 
    • Disconnect the ABS module connector.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the ABS module connector and make sure it seats 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 VEHICLE DYNAMIC SYSTEMS article. CLEAR the DTCs. REPEAT the network test with the scan tool.
    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 network test with the scan tool.
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