LEMON Manuals: Even more car manuals for everyone
Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 456 (Antilock Brake System (Abs) - Electrical Diagnostics) >> DTC Troubleshooting >> U0125-Lost Communication With Dynamics Sensor >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
  1. VERIFY THE DTC IS ACTIVE 
    NOTE:

    If present, diagnose and repair DTC C2114-DYNAMICS SENSOR SUPPLY VOLTAGE LOW or DTC C2115-DYNAMICS SENSOR SUPPLY VOLTAGE HIGH before proceeding.

    1. Turn the ignition on.
    2. With the scan tool, read and record the ABS DTCs.
    3. With the scan tool, read and record Environmental Data to help identify the conditions in which the DTC was set.
    4. With the scan tool, erase the ABS DTCs.
    5. Cycle the ignition switch.
    6. With the scan tool, read the ABS DTCs.

      Is the DTC active at this time?

      Yes 

      • Go To  2

      No 

      • The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
      • Perform the ABS INTERMITTENT CONDITION TEST. Refer to STANDARD PROCEDURE .
  2. INSPECT RELATED WIRING HARNESS, TERMINALS, AND CONNECTORS 
    1. Visually inspect the related wiring harness. Look for any pinched, chafed, pierced, and partially broken wires.
    2. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, and corroded terminals.

      Were any problems found?

      Yes 

      No 

      • Go To  3
  3. CHECK THE VOLTAGE ON THE (G4) DYNAMICS SENSOR SUPPLY CIRCUIT 
    Fig 1: Measuring Voltage On Dynamics Sensor Supply Circuit
    GC0101330Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Dynamics Sensor harness connector.
    3. Turn the ignition on.
    4. Measure the voltage between the (G4) Dynamics Sensor Supply Circuit and the (G94) Dynamics Sensor Ground.

      Is the voltage above 10 volts?

      Yes 

      • Go To  10

      No 

      • Go To  4
  4. CHECK THE (G4) DYNAMICS SENSOR SUPPLY CIRCUIT FOR A SHORT TO GROUND 
    Fig 2: Checking Dynamics Sensor Supply Circuit For Short To Ground
    GC0101331Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Anti-Lock Brake Module harness connector.
    3. Measure the resistance between ground and the (G4) Dynamics Sensor Supply circuit.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Repair the (G4) Dynamics Sensor Supply circuit for a short to ground.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  5
  5. CHECK THE (G4) DYNAMICS SENSOR SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE 
    Fig 3: Measuring Voltage Of Dynamics Sensor Supply Circuit
    GC0101332Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition on.
    2. Measure the voltage of the (G4) Dynamics Sensor Supply circuit.

      Is there any voltage present?

      Yes 

      • Repair the (G4) Dynamics Sensor Supply circuit for a short to voltage.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  6
  6. CHECK THE (G4) DYNAMICS SENSOR SUPPLY CIRCUIT FOR AN OPEN 
    Fig 4: Measuring Resistance Of Dynamics Sensor Supply Circuit
    GC0101333Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Measure the resistance of the (G4) Dynamics Sensor Supply circuit between the ABS Module harness connector and the Dynamics Sensor harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  7

      No 

      • Repair the (G4) Dynamics Sensor Supply circuit for an open.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  7. CHECK THE RESISTANCE BETWEEN THE (G94) DYNAMICS SENSOR GROUND CIRCUIT AND GROUND 
    Fig 5: Measuring Resistance Between Dynamics Sensor Ground Circuit & Ground
    GC0101334Courtesy of CHRYSLER GROUP, LLC
    1. Disconnect the Dynamics Sensor harness connector.
    2. Measure the resistance between the (G94) Dynamics Sensor Ground Circuit and Ground.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Replace the Anti-Lock Brake Module in accordance with the Service Information.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  8
  8. CHECK THE (G94) DYNAMICS SENSOR GROUND CIRCUIT FOR A SHORT TO VOLTAGE 
    Fig 6: Measuring Voltage Of Dynamics Sensor Ground Circuit
    GC0101335Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the ABS Module harness connector.
    3. Turn the ignition on.
    4. Measure the voltage of the (G94) Dynamics Sensor Ground circuit.

      Is there any voltage present?

      Yes 

      • Repair the (G94) Dynamics Sensor Ground circuit for a short to voltage.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  9
  9. CHECK THE (G94) DYNAMICS SENSOR GROUND CIRCUIT FOR AN OPEN 
    Fig 7: Measuring Resistance Of Dynamics Sensor Return Circuit
    GC0101336Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Measure the resistance of the (G94) Dynamics Sensor Return circuit.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Replace the Anti-Lock Brake Module in accordance with the Service Information.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Repair the (G94) Dynamics Sensor Ground circuit for an open.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  10. CHECK THE DYNAMICS SENSOR OUTPUT 
    Fig 8: Checking Dynamics Sensor Output
    GC0101337Courtesy of CHRYSLER GROUP, LLC
    1. Measure the voltage of the Data Links Circuits the (D465) DYNAMICS SENSOR HIGH DATA LINK CIRCUIT will measure a minimum of 3 volts and the (D464) DYNAMICS SENSOR LOW DATA LINK CIRCUIT will measure a minimum of 2 volts

      Is the voltage within specifications?

      Yes 

      • Replace the Dynamic Sensor in accordance with the Service Information.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  11
  11. CHECK THE (D465) DYNAMICS SENSOR HIGH DATA LINK CIRCUIT FOR A SHORT TO VOLTAGE 
    Fig 9: Measuring Voltage Of Dynamics Sensor Low Data Link Circuit
    GC0099403Courtesy of CHRYSLER GROUP, LLC
    1. Disconnect the ABS Module harness connector.
    2. Disconnect the Dynamics Sensor harness connector.
    3. Turn the ignition on.
    4. Measure the voltage of the (D465) Dynamics Sensor High Data Link circuit.

      Is there any voltage present?

      Yes 

      • Repair the (D465) Dynamics Sensor High Data Link circuit for a short to voltage.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  12
  12. CHECK THE (D465) DYNAMICS SENSOR HIGH DATA LINK CIRCUIT FOR A SHORT TO GROUND 
    Fig 10: Measuring Resistance Between Ground & Dynamics Sensor High Data Link Circuit
    GC0099404Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Measure the resistance of the (D465) Dynamics Sensor High Data Link circuit between ground and the Dynamics Sensor harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Repair the (D465) Dynamics Sensor High Data Link circuit for a short to ground.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  13
  13. CHECK THE (D465) DYNAMICS SENSOR HIGH DATA LINK CIRCUIT FOR AN OPEN 
    Fig 11: Checking Dynamics Sensor High Data Link Circuit For An Open
    GC0101340Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance of the (D465) Dynamics Sensor High Data Link circuit between the Dynamics Sensor harness connector and the Anti-Lock Brake Module harness connector.

      Is the resistance below 5.0 ohms?

      Yes 

      • Go To  14

      No 

      • Repair the (D465) Dynamics Sensor High Data Link circuit for an open.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  14. CHECK THE (D464) DYNAMICS SENSOR LOW DATA LINK CIRCUIT FOR A SHORT TO VOLTAGE 
    Fig 12: Measuring Voltage Of Dynamics Sensor High Data Link Circuit
    GC0101338Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition on.
    2. Measure the voltage of the (D464) Dynamics Sensor Low Data Link circuit.

      Is there any voltage present?

      Yes 

      • Repair the (D464) Dynamics Sensor Low Data Link circuit for a short to voltage.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  15
  15. CHECK THE (D464) DYNAMICS SENSOR LOW DATA LINK CIRCUIT FOR A SHORT TO GROUND 
    Fig 13: Checking Dynamics Sensor Low Data Link Circuit For A Short To Ground
    GC0101339Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Measure the resistance of the (D464) Dynamics Sensor Low Data Link circuit between ground and the Dynamics Sensor harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Repair the (D464) Dynamics Sensor Low Data Link circuit for a short to ground.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  16
  16. CHECK THE (D464) DYNAMICS SENSOR LOW DATA LINK CIRCUIT FOR AN OPEN 
    Fig 14: Checking Dynamics Sensor Low Data Link Circuit For An Open
    GC0101341Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance of the (D464) Dynamics Sensor Low Data Link circuit between the Dynamics Sensor harness connector and the ABS Module harness connector.

      Is the resistance below 5.0 ohms?

      Yes 

      • Replace the Anti-Lock Brake (ABS) Module in accordance with the Service Information.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Repair the (D464) Dynamics Sensor Low Data Link circuit for an open.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
scientia non olet · About LEMON Manuals