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Test Procedure

WARNING: This page is about a different car, the 2004 Lincoln LS. 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. A1 - CHECK THE VOLTAGE TO THE ABS MODULE

    • Key in OFF position.
    • Disconnect: ABS Module C135.
    • Key in ON position.
    • Measure the voltage between ABS module C135-4, circuit 20-CF6A (PK/YE), harness side and ground.
      Fig 1: Checking Voltage To ABS Module
      G03200171Courtesy of FORD MOTOR CO.

    • Is the voltage greater than 10 volts?

      1. Yes  : GO to A2.
      2. No  : REPAIR circuit 20-CF6A (PK/YE). REPEAT the self-test.

  2. A2 - CHECK THE ABS MODULE GROUNDS

    • Key in OFF position.
    • Measure the resistance between ABS module C135-16, circuit 31-CF6A (BK/YE), harness side, and ground; and between ABS module C135-47 circuit 31-CF6B (BK/YE) harness side, and ground.
      Fig 2: Checking ABS Module Grounds
      G03200172Courtesy of FORD MOTOR CO.

    • Are the resistances less than 5 ohms?

      1. Yes  : CHECK the module communications network. REFER to MODULE COMMUNICATIONS NETWORK .
      2. No  : REPAIR circuit 31-CF6A (BK/YE) or 31-CF6B (BK/YE). REPEAT the self-test.
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