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Home >> Dodge and Ram >> 2015 >> Durango SXT, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 179 (5.7L - DTCS P2172 To U1440) >> DTC Troubleshooting >> U113E-Lost Communication With Intelligent Battery Sensor >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. With a scan tool, select read DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

  2. VERIFY THAT THE BODY CONTROL MODULE IS CAPABLE OF SETTING IBS FAULTS 
    1. Check the BCM fault code list to verify that the BCM has the capability to set DTCs against the IBS. Refer to DIAGNOSTIC CODE INDEX .

      Are there any IBS faults listed in the DTC list for the BCM?

      Yes 

      • Go To  3

      No 

      • Go To  4
  3. CHECK THE BODY CONTROL MODULE FOR IBS FAULTS 
    1. With the scan tool, read DTCs in the BCM.

      Is the BCM setting any DTCs against the IBS?

      Yes 

      No 

  4. CHECK THE AAT SENSOR WIRING 
    1. Turn the ignition off.
    2. Disconnect the IBS harness connector.
    3. Disconnect the appropriate BCM harness connector.
    4. Check the IBS wiring:
      • for an open condition.
      • for a short to voltage.
      • for a short to ground.
      • for a short to each other.

      Were any problems found with the wiring?

      Yes 

      No 

      • Go To  5
  5. INTELLIGENT BATTERY SENSOR 
    1. Replace the IBS in accordance with the Service Information.
    2. Reconnect all harness connectors.
    3. Turn the ignition on.
    4. With the scan tool, read DTCs.

      Is the DTC still active?

      Yes 

      No