A/T - Controls - False DTC's P0717/P0730
NUMBER: 21-014-08GROUP: Transmission
DATE: May 9,2008
THE StarSCAN(R) FLASH FILES FOR THIS BULLETIN MUST BE RETRIEVED FROM THE INTERNET.
StarSCAN(R) SOFTWARE LEVEL MUST BE AT RELEASE 8.05 OR HIGHER.
StarMOBILE DESKTOP CLIENT -OR- StarMOBILE STANDALONE MODE MAY ALSO BE USED TO PERFORM THE FLASH.
SUBJECT:
Flash: Incorrect Reporting of DTC P0730 for DTC P0717
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software.
NOTE:
Vehicles equipped with a CVT transmission must have the powertrain control module (PCM) checked for the latest software level whenever the TCM software is updated. If newer PCM software is available, it must be installed. Failure to maintain software coordination may result in MIL illumination or driveability concerns. Follow the detailed procedures in DealerCONNECT > TechCONNECT for PCM reprogramming procedures if required.
MODELS:
2008 (MK49) Compass
2008 (MK74) Patriot
2008 (PM) Caliber
NOTE:
This bulletin applies to vehicles equipped with a Continuously Variable Transmission (CVT), (sales code DAV), built on or before March 20, 2008 (MDHO320XX).
DISCUSSION:
In some cases, DTC P0730 (Incorrect Gear Ratio) may set instead of DTC P0717 (Input Speed Sensor 1 Circuit No Signal). This may lead the technician to an incorrect diagnostic path and make it more difficult to determine the cause for the DTC. When diagnosing faults associated with DTC P0730, the TCM should be updated to make sure the correct DTC is being set.
DIAGNOSIS:
Using a Scan Tool (StarSCAN(R)) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine systems are functioning as designed. If DTC's are present, other than those listed above, record them on the repair order and repair as necessary before proceeding further with this bulletin.
If DTC P0730 is set without cause, perform the Repair Procedure before proceeding with further diagnostics.
PARTS REQUIRED:
SPECIAL TOOLS / EQUIPMENT REQUIRED:
REPAIR PROCEDURE - USING THE INTERNET TO RETRIEVE THE FLASH FILE:
NOTE:
Before performing this Repair Procedure, the operating software in the StarSCAN(R); must be programmed with software release level 8.05 or higher.
The software release level is visible in the blue header at the top of the StarSCAN(R) screen.
NOTE:
The StarSCAN� diagnostic scan tool fully supports Internet connectivity. However, to take advantage of this feature you must first configure the StarSCAN(R) for your dealership's network. Make sure the StarSCAN(R) is configured to the dealership's network before proceeding. For instruction on setting up your StarSCAN� for the dealer's network refer to either:
"DealerCONNECT > Service > StarSCAN and StarMOBILE tools > Online Documentation", or refer to the StarSCAN(R) Quick Start Networking Guide. The StarSCAN(R) Quick Start Networking Guide is also available on the website under the "Download Center".
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
1. Install a battery charger and verify that the charging rate provides approximately 13.5 volts. Set the battery charger to continuous charge. Do not allow the charger to time out during the flash process. Remove the charger from the battery when the flash process is complete.
2. Connect the CH9410 StarSCAN(R) ethernet cable to the StarSCAN(R) and the dealer's network drop.
3. Connect the CH9404 StarSCAN(R) vehicle cable to the StarSCAN(R) and the vehicle.
4. Power ON the StarSCAN(R).
5. Retrieve the old TCM part number. Using the StarSCAN(R) at the "Home screen:
a. Select "ECU View"
b. Touch the screen to highlight the TCM in the list of modules.
c. Select "More Options"
d. Select "ECU Flash"
e. Record the part number at the top of the "Flash TCM" screen for later reference.
f. Select "Browse for New File". Follow the on screen instructions.
g. Select "Download to Scantool".
h. Select "Close" after the download is complete, then select "Back".
i. Highlight the listed calibration.
j. Select "Update Controller". Follow on screen instructions.
k. When the update is complete, select "OK".
l. Verify the part number at the top of the "Flash TCM screen has updated to the new part number.
NOTE:
Due to the TCM programming procedure, a DTC may be set in other modules (BCM, MIC, SKREEM, etc.) within the vehicle, if so equipped. Some DTC's may cause the MIL to illuminate. From the "Home" screen select "System View". Then select "All DTC's". Press "Clear All Stored DTC's" if there are any DTC's shown on the list.
NOTE:
The following step is required by law when reprogramming a TCM and/or PCM.
6. Type the necessary information on the "Authorized Modification Label p/n 04275086AB and attach near the VECI label (Fig 1).
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.