Note: This is in regard to the emissions systems specifically on 6.7L Turbo Diesels (Cummins).
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NUMBER: 18-024-09
GROUP: Vehicle Performance
DATE: August 6, 2009
Other system enhancements and improvements:
A. Stationary DeSoot is now available with this software. A separate Service Bulletin will address specific procedures for Stationary DeSoot.
B. Enhanced P2262 diagnostic strategy will no longer set this DTC for conditions where there are no adverse affects.
C. New Scan Tool enabled P2262 Fault Diagnosis test (Used Before Repair) with anew functional test of the turbocharger. As before, this test determines the correct repair direction when DTC P2262 is present. Refer to TSB 09-002-09 Rev A (or laterbulletin) for detail on using this test to diagnose and repair P2262 concerns.
D. New DTC P226B - Turbocharger Boost Pressure Too High - Mechanical - indicates
incorrect airflow and can be caused by the turbocharger, which should be cleaned if
it is the cause for this DTC. This DTC can also be caused by other air handling
system components. Refer to DTC-Based Diagnostics to properly diagnose and
resolve this concern.
E. New DTC added for P2563 - Turbocharger Boost Control Position Sensor
Performance. This DTC indicates diminished variable geometry turbocharger travel,
which is resolved by cleaning the turbocharger. Diagnosis and repair procedures for
the DTC have been published in DTC-Based Diagnostics in TechConnect.
DIAGNOSIS:
Using a Scan Tool with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all engine systems are functioning as designed. If DTC's are
present other then the ones listed above record them on the repair order and repair as
necessary before proceeding further with this bulletin. If any of the above conditions/DTC's
are present, perform the Repair Procedure.
NOTE: This calibration addresses certain conditions for each of the faults listed, but
does not correct a mechanical failure.
NOTE: All other DTC's or symptoms MUST be addressed prior to returning the
vehicle to the customer.
PARTS REQUIRED:
Qty. Part No. Description
1 04275086AB Label, Authorized Modification
REPAIR PROCEDURE:
NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
NOTE: Stationary DeSoot will not perform without a P1451 DTC. Updating the ECM
will automatically clear the P1451 DTC from the ECM's memory. If the soot
threshold is great enough where a Stationary DeSoot is required, it may be
necessary to drive the vehicle so that the P1451 DTC will reset.
1. Does this vehicle have a P2262 DTC either active or stored?
a. Yes >>> Refer to TSB 09-002-09 REV. A (or later bulletin) before proceeding with
this bulletin.
b. No >>> Proceed to Step #2.
2. If this vehicle is a 2007, verify Recall G30 has been properly performed. Bootloader
Software will be displayed on the Scan Tool as up-datable. If the recall has been
properly performed, updating Bootloader is NOT required, (even though the calibration
may be displayed as up-datable).
3. 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 > Service Information >
Standard Procedure > PCM/ECM Programming - DIESEL. After PCM
reprogramming, the following must be performed:
a. 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.
4. Type the necessary information on the "Authorized Modification Label" and attach it
near the VECI label.
POLICY:
Reimbursable within the provisions of the warranty.
---
NUMBER: 18-024-09
GROUP: Vehicle Performance
DATE: August 6, 2009
Other system enhancements and improvements:
A. Stationary DeSoot is now available with this software. A separate Service Bulletin will address specific procedures for Stationary DeSoot.
B. Enhanced P2262 diagnostic strategy will no longer set this DTC for conditions where there are no adverse affects.
C. New Scan Tool enabled P2262 Fault Diagnosis test (Used Before Repair) with anew functional test of the turbocharger. As before, this test determines the correct repair direction when DTC P2262 is present. Refer to TSB 09-002-09 Rev A (or laterbulletin) for detail on using this test to diagnose and repair P2262 concerns.
D. New DTC P226B - Turbocharger Boost Pressure Too High - Mechanical - indicates
incorrect airflow and can be caused by the turbocharger, which should be cleaned if
it is the cause for this DTC. This DTC can also be caused by other air handling
system components. Refer to DTC-Based Diagnostics to properly diagnose and
resolve this concern.
E. New DTC added for P2563 - Turbocharger Boost Control Position Sensor
Performance. This DTC indicates diminished variable geometry turbocharger travel,
which is resolved by cleaning the turbocharger. Diagnosis and repair procedures for
the DTC have been published in DTC-Based Diagnostics in TechConnect.
DIAGNOSIS:
Using a Scan Tool with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all engine systems are functioning as designed. If DTC's are
present other then the ones listed above record them on the repair order and repair as
necessary before proceeding further with this bulletin. If any of the above conditions/DTC's
are present, perform the Repair Procedure.
NOTE: This calibration addresses certain conditions for each of the faults listed, but
does not correct a mechanical failure.
NOTE: All other DTC's or symptoms MUST be addressed prior to returning the
vehicle to the customer.
PARTS REQUIRED:
Qty. Part No. Description
1 04275086AB Label, Authorized Modification
REPAIR PROCEDURE:
NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
NOTE: Stationary DeSoot will not perform without a P1451 DTC. Updating the ECM
will automatically clear the P1451 DTC from the ECM's memory. If the soot
threshold is great enough where a Stationary DeSoot is required, it may be
necessary to drive the vehicle so that the P1451 DTC will reset.
1. Does this vehicle have a P2262 DTC either active or stored?
a. Yes >>> Refer to TSB 09-002-09 REV. A (or later bulletin) before proceeding with
this bulletin.
b. No >>> Proceed to Step #2.
2. If this vehicle is a 2007, verify Recall G30 has been properly performed. Bootloader
Software will be displayed on the Scan Tool as up-datable. If the recall has been
properly performed, updating Bootloader is NOT required, (even though the calibration
may be displayed as up-datable).
3. 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 > Service Information >
Standard Procedure > PCM/ECM Programming - DIESEL. After PCM
reprogramming, the following must be performed:
a. 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.
4. Type the necessary information on the "Authorized Modification Label" and attach it
near the VECI label.
POLICY:
Reimbursable within the provisions of the warranty.
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