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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 164 (Anti-Lock Brake System) >> Diagnosis And Testing >> Anti-Lock Control >> Pinpoint Test G: DTC C1300 - ABS Hydraulic Pump Motor Circuit Failure >> Testing

Pinpoint Test G: DTC C1300 - ABS Hydraulic Pump Motor Circuit Failure: Testing

WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
  1. G1 CHECK THE ABS PUMP MOTOR 
    • Key in ON position.
    • Is the ABS pump motor running all the time? 
    • Yes  : GO to  G5.
    • No  : GO to G2.
  2. G2 CHECK THE PUMP MOTOR ACTIVE COMMAND 
    • 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? 
    • Yes  : CLEAR the DTCs. CHECK the yellow ABS warning indicator while driving the vehicle (brakes must not be applied) above 15 km/h (9 mph). If the yellow ABS warning indicator illuminates, RETRIEVE the DTCs. If DTC C1300 is retrieved, GO to  G5. If the yellow ABS warning indicator does not illuminate, the system is OK.
    • No  : TRIGGER the ABS module pump motor OFF active command. GO to G3.
  3. G3 CHECK CIRCUIT 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 C135-1, circuit 534 (YE/LG), harness side and ground.
      Fig 1: Checking Circuit 534 (YE/LG) For Open
      G03988517Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to G4.
    • No  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  4. G4 CHECK CIRCUIT 1205 (BK) FOR AN OPEN 
    • Measure the resistance between the ABS module C135-13, circuit 1205 (BK), harness side and ground.
      Fig 2: Checking Circuit 1205 (BK) For Open
      G03988518Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to G5.
    • No  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  5. G5 CHECK FOR CORRECT ABS MODULE OPERATION 
    • Disconnect the ABS module connector.
    • Check for:
      • corrosion
      • 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? 
    • Yes  : INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE . CLEAR the DTCs. REPEAT the self-test.
    • 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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