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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (6.7L Diesel - DTCS - P21C4 To U1601 - 3500 Cab & Chassis) >> Diagnosis and Testing >> U1601-Ecu Application Software Code 1 Missing Or Corrupted >> Testing >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. NEW POWERTRAIN CONTROL MODULE 
    1. If the PCM was replaced and not programmed this DTC will set.
    2. With a scan tool clear DTCs.

      Has the PCM been replaced on this vehicle?

      Yes 

      No 

      • Go To  2.
  2. DOWNLOAD FAILED 
    1. If the vehicle lost battery power or the scan tool was disconnected during programming, this DTC will set.

      Was a software download interrupted during the download process?

      Yes 

      • Reprogram the Powertrain Control Module in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .

      No 

      • Go To  3.
  3. UNAPPROVED SOFTWARE INSTALLED 
    1. Unapproved software programmed into the Powertrain Control Module is not a warrantable repair.

      If tests one and two do not apply, the vehicle has been programmed with unapproved software.

      Yes