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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 619 (5.7L - DTCS P257E To U1504 - 1500) >> Diagnosis And Testing >> U0125-Lost Communication With Multi-Axis Acceleration Sensor >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    NOTE:

    For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.

    1. Ignition on, engine not running.
    2. With a scan tool, view DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go To  2

      No 

  2. VERIFY THAT THE OCCUPANT RESTRAINT CONTROLLER (ORC) IS ACTIVE ON THE BUS 
    1. Turn the ignition on.
    2. Using the scan tool, select Network Diagnostics.
    3. Verify that the ORC is active on the bus.

      Is the ORC active on the bus?

      Yes 

      • Go To  3

      No 

  3. POWERTRAIN CONTROL MODULE (PCM) 
    1. Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Perform the PCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
    2. Turn the ignition on, engine not running.
    3. With the scan tool, record and erase DTCs.
    4. Cycle the ignition switch from off to on.
    5. With the scan tool, read DTCs.

      Is the DTC still active?

      Yes 

      No 

      • Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.