Engine, A/T Controls - MIL ON/DTCs P0711/P0776 Set
NUMBER: 21-003-10GROUP: Transmission
DATE: May 12, 2010
THIS BULLETIN SUPERSEDES SERVICE BULLETIN 21-019-08, DATED AUGUST 2, 2008, WHICH SHOULD BE REMOVED FROM YOUR FILES. THIS IS A COMPLETE REVISION AND NO ASTERISKS HAVE BEEN USED TO HIGHLIGHT REVISIONS.
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR FLASHING ECUs.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 10.03 OR HIGHER TO PERFORM THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT:
Flash: MIL Illumination Due To Transmission Related DIG P0711 or P0776
OVERVIEW:
This bulletin involves verifying software levels in the Transmission Control Module (1CM) and the Engine Control Module (ECM). Then, as necessary, selectively erasing and reprogramming the TCM and possibly the ECM. The ECM will need to be reprogrammed SEPARATELY if the ECM is not at the latest level. A related Labor operation is included if the ECM requires updating to perform the TCM flash.
MODELS:
2007 (DC) Ram Truck (3500 Chassis Cab)
NOTE:
This bulletin applies to 2007 models equipped with a 6.7L turbo diesel engine and an AS68RC automatic transmission (sales code ETJ and DG3 respectively).
SYMPTOM/CONDITION:
The customer may experience a Malfunction Indicator Lamp (MIL) due to one or both of the following Diagnostic Trouble Codes:
1. P0711 - Transmission Temperature Sensor / Performance. This condition may occur if the following sequence of events occur:
a. The engine is cold soaked in an ambient temperature of 0°C (32°F) or lower.
b. Then the engine is started and allowed to idle for about 10 minutes.
c. Then the truck is driven into a warm environment with an ambient temperature greater than 0°C (32°F), and the engine is turned off.
d. Upon restart of the engine, a MIL illumination may occur due to DTC P0711.
2. P0776 - Pressure Control Solenoid B Performance.
DIAGNOSIS:
Using a scan tool with the appropriate diagnostic procedures available in TechCONNECT, verify all engine systems are functioning as designed. 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.
1. Is DTC P0711 or P0776 present?
a. If YES >>> then perform the Repair Procedure.
b. If NO >>> then STOP. This bulletin does not apply.
PARTS REQUIRED:
SPECIAL TOOLS / EQUIPMENT REQUIRED:
REPAIR PROCEDURE:
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
1. Verify the ECM is at the latest software level. Is the ECM at the latest software level?
a. Yes - Proceed to Step # 3.
b. No - Proceed to Step # 2.
2. Reprogram the ECM with the latest software. Follow the detailed service procedures available in DealerCONNECT/TechCONNECT, Refer To Group 28 - DTC-Based Diagnostics> MODULE, Engine Control (ECM), 6.7L> Standard Procedure> PCM/ECM /TCM Programming.
3. Reprogram the TCM with the latest software. Follow the detailed service procedures available in DealerCONNECT/TechCONNECT, Refer To Group 28 - DTC-Based Diagnostics> MODULE, Engine Control (ECM), 6.7L> Standard Procedure> PCM/ECM /TCM Programming. After ECM/TCM 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.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.