Engine Controls - MIL ON/DTC's P2000/P2A00/P2A01
NUMBER: 18-035-08GROUP: Vehicle Performance
DATE: September 13, 2008
THE StarSCAN(R) FLASH FILES FOR THIS BULLETIN MUST BE RETRIEVED FROM THE INTERNET.
StarSCAN(R) SOFTWARE LEVEL MUST BE AT RELEASE 9.02 OR HIGHER.
StarMOBILE DESKTOP CLIENT - OR - StarMOBILE STANDALONE MODE MAY ALSO BE USED TO PERFORM THE FLASH.
SUBJECT:
MIL Illumination Due to P2000, P2A00 and/or P2A01
OVERVIEW:
This bulletin involves verifying all TSB's related to high sooting issues have been properly addressed, replacing both Oxygen (02) Sensors, and wrapping the exhaust pipe in the area of the FRONT 02 sensor.
This bulletin also involves verifying that the Documentation Kit has been installed in the vehicle and the customer has been informed of its contents.
MODELS:
2007 - 2008 (DH/D1) Ram Truck 2500/3500
NOTE:
This bulletin applies to vehicles equipped with a 6.7L Cummins diesel engine (sales code ETJ).
SYMPTOM/CONDITION:
Customer may experience MIL illumination. Further investigation by the technician may find one or more of the following DTC(s) present:
^ P2000 - NOX Absorber Efficiency Below Threshold - Bank 1.
^ P2A00 - 02 Sensor 1/1 Circuit Performance.
^ P2A01 - 02 Sensor 1/2 Circuit Performance.
DIAGNOSIS:
If DTC's other than those listed above are present record them on the repair order and repair as necessary before proceeding further with this bulletin. Refer to TSB's related to turbocharger and DPF repairs (11-002-07,11-001-08,11 -002-08 and 18-013-08) if needed.
NOTE:
ECM (PCM) software commands when and what the CCN will display on the EVIC regarding the new engine system and exhaust aftertreatment system messages. The ECM software must be up to date (correct software level) in order for the new EVIC messages to display as designed and to address the symptoms and conditions above.
^ Verify software level in ECM and CCN is at the latest software level available in DealerCONNECT.
^ Verify DTC's other than those listed in the SYMPTOM/CONDITION should be addressed with the appropriate TSB or Service Procedures available in DealerCONNECT.
^ IF making a Diesel Particulate Filter (DPF) or turbocharger repair in conjunction with this TSB, ensure EGR system, Turbo, Intake, Charge Air Cooler, and other sensors are inspected and cleaned as described in these TSB's. Systems should be cleaned to "Like New" condition. Vehicles that have excess soot build up should have the source of the soot build up diagnosed and repaired prior to proceeding with this bulletin.
^ Verify proper maintenance has been performed, including: fuel and air filter brand (Mopar recommended) and condition.
^ Check Crankcase Ventilation (CCV) system for restriction which may cause oil infiltration into turbo and intake system.
^ Some vehicles may only have a part of the Documentation Kit (i.e. Diesel Owners Manual Supplement). Make sure the vehicle/customer has received a complete Documentation Kit.
If any of the DTC's listed in the SYMPTOM/CONDITION are present and the conditions listed above have been met, perform the REPAIR PROCEDURE.
PARTS REQUIRED:
REPAIR PROCEDURE:
1. Remove and replace both Oxygen Sensors with p/n 05149263AA. Torque to 41 N.m (30 ft.lbs). Connect wiring to both of the Oxygen (02) sensors.
NOTE:
Do not use earlier versions of 02 sensor when performing this repair. Ensure part number is 05149263AA or higher level.
2. Using scissors or a utility knife, cut exhaust wrap to a length of 12.5 (3.8 m).
3. Locate the Diesel Oxidation Catalyst (DOC) downpipe to NOx Absorber Catalyst (NAC) flange. Measure and mark a line at a distance of 7 (18 cm) in front of this flange (Fig. 1).
4. Loosely install band clamps;
a. One in front of 02 sensor.
b. One between DOC-to-NAC flange and 02 sensor.
NOTE:
Do not wrap or cover wiring for oxygen sensor or temperature sensor with insulation.
5. Starting about 1" (25 mm) in front of the (DOC)-to-(NAG) flange and using full overlap, wrap insulation once around the exhaust pipe (Fig. 2).
6. Wrap pipe in an upstream direction (toward 02 sensor) using a 1" (25 mm) over lap. Wrap to the 02 sensor. Wrap the body of the 02 sensor two times.
7. Then continue wrapping the exhaust pipe in an upstream direction to the 7 (17.75cm) mark established in Step # 3.
8. Now continue the exhaust pipe wrap in a downstream direction and slalom around sensor. This time, do not wrap the insulation around the body of the 02 sensor. Continue to the wrap until you reach the (DOC)-to-(NAC) flange (Fig. 3).
9. Slide a band clamp over each end of the wrap.
10. Tighten both clamps. One at front of wrap and one at rear of wrap.
11. If a complete Documentation Kit has not been installed on the vehicle, install the Documentation Kit now. (Kit is zero cost).
a. Place the new Diesel Owners Manual Supplement in the vehicle Glove Box.
b. Place the Informational DVD in the vehicle Glove Box.
c. Place the Informational CD in the vehicle's CD player, (if equipped).
d. Install the new Sun Visor Label on the left (driver) side sun visor. The label should be centered on the sun visor and to the left of the seat belt warnings. Verify that the label is firmly attached to the sun visor material.
e. Dealer personnel should inform the customer the Documentation Kit has been installed on the vehicle and advise the customer to familiarize themselves with this information.
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.