Engine Controls - Stationary Exhaust De-Soot Procedure
NUMBER: 11-002-09GROUP: Exhaust
DATE: August 5, 2009
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR PERFORMING THIS PROCEDURE.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 9.05 OR HIGHER TO PERFORM THIS PROCEDURE.
SUBJECT:
Diesel Particulate Filter Stationary DeSoot
OVERVIEW:
Stationary DeSoot has replaced Mobile DeSoot as the Diagnostic Scan Tool enabled repair for Diagnostic Trouble Codes P1451 and P2463. This bulletin provides the procedure to perform Stationary DeSoot. This new procedure allows running the DeSoot in a secured area with the vehicle unattended.
MODELS:
2007 - 2009 (D1/DH) Ram Truck (2500/3500 Pick Up)
NOTE:
This bulletin applies to DI/DH vehicles equipped with a 6.7L Cummins Diesel engine (Sales Code ETJ). Mobile DeSoot still applies to DC/DM vehicles equipped with the 6.7L Cummins Diesel engine (Sales Code ETJ).
DIAGNOSIS:
NOTE:
Stationary DeSoot can only be performed when the Diesel Particulate Filter has exceeded a specified soot threshold. The Diagnostic Scan Tool will not allow the procedure to operate unless the threshold has been exceeded. If the vehicle does not have an active P1451, the soot in the Diesel Particulate Filter is at a normal level and a scan tool initiated DeSoot is not needed.
NOTE:
Prior to performing this procedure, follow the procedures outlined in the appropriate Service Information to properly diagnose and repair any P-code related to excessive soot build-up.
1. Follow the appropriate diagnostic procedure as identified in DealerCONNECT > TechCONNECT > 28-DTC Based Diagnostics > Module, Engine Control (ECM), 6.7L > Diagnosis and Testing to determine root cause of customers concern.
2. Repair root cause for each condition as required.
3. Using the Diagnostic Scan Tool, verify that the Engine Control Module's (ECM) software release is at the latest level. Flash the module as necessary following the procedures identified in DealerCONNECT > TechCONNECT > 08 - Electrical > 8E - Electronic Control Modules > Module, Engine Control, Diesel > Standard Procedure > PCM/ECM Reprogramming, Diesel. Refer to the latest service action (Service Bulletin, RRT, CSN, etc.) for information regarding the flashing of ECM software.
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.
4. Perform Stationary DeSoot as required.
PARTS REQUIRED:
SPECIAL TOOLS/EQUIPMENT REQUIRED:
REPAIR PROCEDURE:
WARNING:
Due to the fact that the vehicle may be left unattended for up to one hundred (100) minutes during this procedure, every precautionary measure must be taken to ensure that the vehicle cannot be stolen and that no person comes in contact with the hot exhaust or hot exhaust gases during the procedure.
NOTE:
Stationary DeSoot procedure will consume approximately three gallons of fuel. Ensure that the tank has at least three gallons fuel.
NOTE:
When using Diagnostic Scan Tool software at release 9.05, the fuel minimum specification to run the test is 114 of a tank of fuel.
1. Fill the vehicle with three (3) gallons of Ultra Low Sulfur diesel fuel to perform the procedure.
WARNING:
Exhaust temperatures will be extremely high. Do not perform this procedure on flammable surfaces such as asphalt, grass, etc. or adjacent to property that may be damaged by the exhaust gases, or in a location where individuals may be required to pass adjacent to the exhaust.
NOTE:
In order for Stationary DeSoot to begin, the vehicle must be parked with the parking brake engaged, be at normal operating temperature, have no active DTC's unrelated to DeSoot, and have at least three gallons of fuel. If any of these conditions are violated after Stationary DeSoot begins, or if the service brake or accelerator pedal is pressed, Stationary DeSoot will abort.
2. Position the vehicle on a NONFLAMMABLE surface such as concrete, gravel, or dirt and ensure any flammable surface is at least twelve (12) feet from the exhaust outlet.
3. Apply the parking brake.
4. Position the shift lever in Park or Neutral.
5. Lower the spare tire down as far as possible. It is not necessary to remove the spare tire from the vehicle.
6. Mark an area 12 feet (3.66 meters) by 12 feet (3.66 meters) surrounding the exhaust outlet. The exhaust outlet should be six feet from the fore and aft ends of the marked off area. Position the four Safety Cones on the four corners of the marked off area.
NOTE:
Ensure that the "HOT EXHAUST" labels are facing outward.
7. Ensure that the hood remains closed during the stationary regeneration operation.
8. Position the antitheft device - Dr. Hook Pedal to Steering Wheel Lock(R) or The Club Auto Brake Lock(R) (or equivalent) to the appropriate components as instructed by the device manufactures instructions.
9. If not already performed, connect the Diagnostic Scan Tool to the vehicle.
10. Start the engine.
11. Power ON the Diagnostic Scan Tool.
12. Scroll to the ECM menu.
13. Select Stationary DeSoot
NOTE:
During Stationary DeSoot, engine RPM will be elevated to 1,100 RPM. When the engine RPM returns to normal idle, the Stationary DeSoot has completed or aborted.
14. Initiate Stationary DeSoot.
NOTE:
Stationary DeSoot may take up to one hundred (100) minutes to complete. It is not necessary to monitor the stationary regeneration cycle the entire one hundred minutes. In addition, it is not necessary to leave the Diagnostic Scan Tool connected to the vehicle once the stationary regeneration has been initiated. Periodic monitoring of the cycle can be accomplished by monitoring the percent of completion through the EVIC or by connecting the Diagnostic Scan Tool and reviewing the percent of completion on the scan tool.
15. Stationary DeSoot will automatically abort once the cycle is complete. If Stationary DeSoot needs to be aborted prior to the end of the cycle, any of the following manual methods can be used:
^ Turning the ignition OFF
^ Depressing the brake pedal
^ Moving the PRNDL from P/N to DIR
16. Once Stationary DeSoot is complete, remove the anti-theft device.
17. Collect the four Safety Cones.
18. Position the spare tire back into its stowage position.
19. Return the vehicle to the customer.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
The Stationary DeSoot Labor Operation Number can only be used in conjunction with another repair procedure and cannot be the causal LOP. There is no Failure Code associated with this Labor Operation Number
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.