Engine Controls - ECM Software Improvements
NUMBER: 18-013-13GROUP: Vehicle Performance
DATE: March 14, 2013
THIS BULLETIN SUPERSEDES SERVICE BULLETIN 18-005-12, DATED JANUARY 28,
2012, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE
HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE DIAGNOSTIC AND SYMPTOM
ENHANCEMENTS.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 13.03 OR HIGHER TO
PERFORM THIS PROCEDURE.
SUBJECT:
FLASH: Engine Systems and PTO Enhancements
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software.
MODELS:
2011 (DD) Ram Truck (3500 Cab Chassis)
2011 (DP) Ram Truck (4500/5500 Cab Chassis)
NOTE:
This bulletin applies to vehicles equipped with a Cummins 6.7L engine (sales code ETJ)
Owners Manual Supplement Included
Print the last page of this document and place in the vehicle for customer reference.
SYMPTOM/CONDITION:
Cab chassis trucks equipped with a 6.7L Cummins diesel have a number of software improvements available. This latest Service Bulletin (SB) will include:
Improvements To Prevent Unnecessary Malfunction Indicator Lamp (MIL)
Illumination For:
^ P0524 - ENGINE OIL PRESSURE SENSOR CIRCUIT LOW
^ P051B - CRANKCASE PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE
^ P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1
^ U010E - LOST COMMUNICATION WITH DIESEL EXHAUST FLUID CONTROL
UNIT
^ P2609 - INTAKE AIR HEATER SYSTEM PERFORMANCE
^ P061A - ETC LEVEL 2 TORQUE PERFORMANCE
P1123 - POWER TAKE OFF SYSTEM MONITOR CONTROL ERROR
^ P2579 - TURBOCHARGER SPEED SENSOR CIRCUIT PERFORMANCE
^ ** P2453 - DIESEL PARTICULATE FILTER PRESSURE SENSOR A CIRCUIT
PERFORMANCE **
^ ** U059F - INVALID DATA RECEIVED FROM NOx SENSOR "B" **
^ ** P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1
NOTE:
** Vehicles with DTC P20EE set in conditions other than highway speed and/or high load drive cycles should have normal diagnostics performed **
Enhanced Diagnostics For:
^ Variable Geometry Turbocharger.
^ Fuel level sensor.
^ Misfire without MIL illumination
Other Updates:
^ ** Too frequent regeneration readiness improvement **
^ ** Correct CAC out voltage in WiTech **
^ ** Add ability to read EMP sensor value in WiTech **
^ ** Display correct crankcase pressure in WiTech **
^ ** Display correct EGR position in WiTech **
^ ** Display correct alternator voltage in WiTech **
^ ** Improve idle shutdown messages - extra message removed **
^ Low Diesel Exhaust Fluid (DEF) level EVIC messaging strategy changes.
^ Diesel Exhaust Fluid (DEF) system tampering EVIC messaging strategy changes.
^ Oil change monitor - updated for easier reset (same basic procedure, easier to reset).
^ Scan tool display updates.
^ Enable mobile PTO capability.
^ Correct operation of remote PTO.
^ Correct EVIC messaging related to DEF level reporting
^ System robustness improvements.
^ DEF tank level reporting erroneously at high DEF tank level. When DEF tank is overfilled, the EVIC may display low fluid level (20 - 22%).
Owners Manual Supplement Included
Print the last page of this document and place in the vehicle for customer reference.
DIAGNOSIS:
Using wiTECH with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine systems are functioning as designed. If DTC's are present record them on the repair order and repair as necessary before proceeding further with this bulletin.
If the vehicle operator describes or experiences the Symptom/Condition, perform the Repair Procedure.
PARTS REQUIRED:
REPAIR PROCEDURE:
NOTE:
Install a battery charger to ensure battery voltage does not drop below 13.2 volts. Do not allow the charging voltage to climb above 13.5 volts during the flash process.
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
NOTE:
wiTECH may erroneously give an error message at the conclusion of the download stating the that the flash was not successful. If there is an error message after the flash has completed, first confirm that the DTC U1601 is not present and that the P/N has been updated. If so, start the engine to confirm the flash was successful. If DTC U1601 is present, OR the P/N did not update, OR the engine did not start, the flash may have been unsuccessful. Restart the flash update.
1. Reprogram the ECM with the latest software. Follow the detailed service procedures available in DealerCONNECT/TechCONNECT, Refer To Group 8 - Electrical > 8E - Electronic Control Modules > MODULE, Engine Control, Diesel > Standard Procedure > PCM/ECM Programming - DIESEL. After PCM reprogramming has completed successfully, the following must be performed:
a. Power down the PCM (key off) after flash. Trucks must have key off for 75 seconds.
b. Clear any DTC's that may have been set in other modules due to reprogramming.
The wiTECH application will automatically present all DTC's after the flash and allow the tech to clear them.
NOTE:
If a DTC of U010E is set AFTER programming, cycle the key OFF for 75 seconds and then clear the fault even though it may be active.
2. Type the necessary information on the "Authorized Modification Label" and attach it near the VECI label.
OWNERS MANUAL SUPPLEMENT INCLUDED
Print the last page of this document and place in the Owner's Manual Kit for customer reference.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.