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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 603 (3.0L Diesel - DTCS P2455-00 To U1489-00 - 1500) >> Diagnosis And Testing >> U0423-00-Implausible Data Received From Cluster/CCN >> 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. CHECK FOR ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan tool, record and erase HVAC DTCs.
    3. Wait 30 seconds.
    4. With the scan tool, read HVAC DTCs.

      Is this DTC active?

      Yes 

      • Go To  2

      No 

      • The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  2. INSTRUMENT CLUSTER IS ACTIVE ON THE CAN C INTERIOR BUS 
    1. With the scan tool, select ECU View.
    2. Verify that the Instrument Cluster is active on the bus.

      Is the Instrument Cluster active on the bus?

      Yes 

      • Go To  3

      No 

  3. DTCS STORED OR ACTIVE IN THE INSTRUMENT CLUSTER 
    1. Check for DTCs in the Instrument Cluster.

      Are any DTCs active or stored in the Instrument Cluster?

      Yes 

      • Refer to the DTC INDEX - 1500 and perform the appropriate diagnostic procedure.

      No 

      • Go To  4
  4. ACTIVE DTCS IN THE BCM 
    1. With the scan tool, select ECU View and select BCM.
    2. With the scan tool, read active DTCs.

      Are any Communication DTCs active in the BCM Park Assist System?

      Yes 

      • Refer to the DTC INDEX - 1500 and perform the appropriate diagnostic procedure.

      No 

      • Replace and program the module that set this DTC in accordance to the Service Information. Perform its respective verification test.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .