LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2007 >> Liberty Limited, RWD >> Repair and Diagnosis (Single Page) >> Brakes >> Anti-Lock Brakes >> Anti-Lock Brake System - Electrical Diagnostics >> Brakes - Abs Electrical Diagnostics >> DTC Troubleshooting >> U0125-Lost Communication With Dynamics Sensor >> Diagnostic Test

Diagnostic Test

  1. 3) CHECK THE (D52) DYNAMICS SENSOR HIGH DATA LINK CIRCUIT FOR A SHORT TO VOLTAGE 
    Fig 1: Checking Dynamics Sensor High Data Link Circuit For Short To Voltage
    GC0026985Courtesy of CHRYSLER LLC

    Disconnect the Anti-Lock Brakes Module harness connector.

    Disconnect the Dynamics Sensor harness connector.

    Turn the ignition on.

    Measure the voltage of the (D52) Dynamics Sensor High Data Link circuit.

    Is there any voltage present? 

    Yes 

    1. Repair the (D52) Dynamics Sensor High Data Link circuit for a short to voltage.
    2. Perform ABS VERIFICATION TEST .

    No 

    1. Go to  4).
  2. 4) CHECK THE (D52) DYNAMICS SENSOR HIGH DATA LINK CIRCUIT FOR A SHORT TO GROUND 
    Fig 2: Checking Dynamics Sensor High Data Link Circuit For Short To Ground
    GC0026986Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Measure the resistance of the (D52) Dynamics Sensor High Data Link circuit between ground and the Dynamics Sensor harness connector.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Repair the (D52) Dynamics Sensor High Data Link circuit for a short to ground.
    2. Perform ABS VERIFICATION TEST .

    No 

    1. Go to  5).
  3. 5) CHECK THE (D52) DYNAMICS SENSOR HIGH DATA LINK CIRCUIT FOR AN OPEN 
    Fig 3: Checking Sensor Cluster High Data Link Circuit For An Open
    GC0039481Courtesy of CHRYSLER LLC

    Measure the resistance of the (D52) Dynamics Sensor High Data Link circuit between the Dynamics Sensor harness connector and the Anti-Lock Brakes Module harness connector.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Go to  6).

    No 

    1. Repair the (D52) Dynamics Sensor High Data Link circuit for an open.
    2. Perform ABS VERIFICATION TEST .
  4. 6) CHECK THE (D51) DYNAMICS SENSOR LOW DATA LINK CIRCUIT FOR A SHORT TO VOLTAGE 
    Fig 4: Checking Dynamics Sensor Low Data Link Circuit For Short To Voltage
    GC0026988Courtesy of CHRYSLER LLC

    Turn the ignition on.

    Measure the voltage of the (D51) Dynamics Sensor Low Data Link circuit.

    Is there any voltage present? 

    Yes 

    1. Repair the (D51) Dynamics Sensor Low Data Link circuit for a short to voltage.
    2. Perform ABS VERIFICATION TEST .

    No 

    1. Go to  7).
  5. 7) CHECK THE (D51) DYNAMICS SENSOR LOW DATA LINK CIRCUIT FOR A SHORT TO GROUND 
    Fig 5: Checking Dynamics Sensor Low Data Link Circuit For Short To Ground
    GC0026989Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Measure the resistance of the (D51) Dynamics Sensor Low Data Link circuit between ground and the Dynamics Sensor harness connector.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Repair the (D51) Dynamics Sensor Low Data Link circuit for a short to ground.
    2. Perform ABS VERIFICATION TEST .

    No 

    1. Go to  8).
  6. 8) CHECK THE (D51) DYNAMICS SENSOR LOW DATA LINK CIRCUIT FOR AN OPEN 
    Fig 6: Checking Sensor Cluster Low Data Link Circuit For An Open
    GC0039482Courtesy of CHRYSLER LLC

    Measure the resistance of the (D51) Dynamics Sensor Low Data Link circuit between the Dynamics Sensor harness connector and the Anti-Lock Brakes Module harness connector.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Replace the Dynamics Sensor in accordance with the SERVICE INFORMATION.
    2. Perform ABS VERIFICATION TEST .

    No 

    1. Repair the (D51) Dynamics Sensor Low Data Link circuit for an open.
    2. Perform ABS VERIFICATION TEST .
scientia non olet · About LEMON Manuals