Engine Controls - ECM Update When Replacing Glow Plugs
NUMBER: 08-005-11GROUP: Electrical
DATE: February 02, 2011
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR FLASHING ECUs ON 2006 KJ VEHICLES.
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 11.02 OR HIGHER TO PERFORM THIS PROCEDURE.
StarSCAN or StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
WHENEVER A 2005 KJ ECU MODULE IS REPROGRAMMED, THE DRBIII(R) MUST BE USED FOR FLASHING ECUs.
SUBJECT:
Glow Plug Service
MODELS:
2005 - 2006 (KJ) Liberty (Includes International Markets)
NOTE:
This bulletin applies to all KJ vehicles equipped with a 2.8L engine (Sales code ENR).
Discussion:
Ceramic glow plugs are no longer available through Mopar. The ceramic glow plugs have been superseded by metallic glow plug.
When replacing a ceramic glow plug with a metallic glow plug it will be necessary to replace all four glow plugs, replace the glow plug control module (GCM) and reprogram the Engine Control Module. All changes must be done at once.
It is only necessary to replace all glow plugs, the GCM and reprogram the ECU one time. If any of these components require replacement after the initial change then only that component needs to be replaced.
If part numbers can not be used to identify if the plug is ceramic on a vehicle use sand paper to scuff the oxidation off the plug. Ceramic glow plugs are white in color. Metallic plugs are gray in color.
GCM's for vehicles with the ceramic glow plugs are still available through Mopar. If the ceramic glow plugs do not need to be replaced and the ECU or GCM does then use the original parts.
ECU's from Mopar are programmed with the software that is configured to operate with the ceramic glow plugs. Anytime a ECU is replaced and the vehicle has already been upgraded to the metallic glow plugs then the ECU must be reprogrammed with the software for metallic glow plug operation.
All Part numbers are listed below.
PARTS REQUIRED:
REPAIR PROCEDURE FOR 2005 KJ VEHICLES USING DRBIII(R) AND DOWNLOADING THE FLASH FILE FROM DealerCONNECT:
NOTE:
Whenever a module is reprogrammed, the software in the DRBIII(R); must be programmed with the latest revision level available.
NOTE:
If this flash process is interrupted/aborted, the flash process should be restarted and then follow the directions on the DRBIII(R).
1. Before beginning the flash procedure, remove any old flash files from the DRBIII(R) memory. To clear the memory from the MAIN MENU:
a. Simultaneously press the "MORE" and "YES" keys.
b. A screen will appear requesting a "COLD BOOT".
c. Follow the on screen instructions by selecting the "F4 key".
d. When the DRBIII(R) reboots to the MAIN MENU, proceed to Step # 2
2. With the ignition switch in the "RUN" position, determine the original part number of the ECM currently in the vehicle. Using the DRBIII(R) select:
a. "DRBIII(R) Standalone".
b. "1998 - 2005 Diagnostics".
c. "All (Except Below)".
d. "Engine".
e. "Module Display".
f. Record the "ECM part # " on the repair order for later reference.
3. Connect the DRBIII(R) to TechCONNECT. Open TechTOOLS and verify that the "DRBIII(R) Status: Connected" message is in the upper right corner of the TechTOOLS screen.
4. Enter the "ECM part # " recorded in in the "Parts Criteria" area and select "Show Updates". TechTOOLS will populate the appropriate flash file.
5. Select the flash file.
6. Select the "DRBIII radio button which is next to the "Download/Update button.
7. Select the "Download/Update button.
8. Monitor the "Flash Download/Update Progress" window on the TechCONNECT and follow the instructions on TechCONNECT. When the download process is complete, proceed to Step # 9.
9. Disconnect the DRBIII(R) from TechCONNECT.
10. Open the hood, install a battery charger and verify that the charging rate provides approximately 13.5 volts.
11. Connect the DRBIII(R) to the vehicle.
12. Download the ECM flash file from the DRBIII(R) to the vehicle. Using the DRBIII(R) select:
a. "Vehicle Flash".
b. Follow the directions on the DRBIII(R) screen. When the flash process is complete, proceed to the next step.
13. Reset the "Pinion Factor" as necessary.
14. Perform the transmission Quick Learn Procedure as necessary.
15. Update the Sentry Key Immobilizer Module (SKIM) or Sentry Key Remote Entry Module (SKREEM), Secret Key data if necessary.
NOTE:
Due to the ECM programming procedure, a DTC may be set in other modules (TCM, BCM, MIC, SKIM, etc.) within the vehicle, if so equipped. Some DTC's may cause the MIL to illuminate. Check all modules using "Module Scan", record the DTC's, and erase these DTC's prior to returning the vehicle to the customer. Erase any DTC's in the PCM only after all other modules have had their DTC's erased.
NOTE:
The following step is required by law when reprogramming a ECM and/or TCM.
16. Type the necessary information on the "Authorized Modification Label" p/n 04275086AB and attach near the VECI label.
REPAIR PROCEDURE FOR 2006 KJ VEHICLES USING wiTECH:
NOTE:
If this flash process is interrupted/aborted, the flash process should be restarted and then follow the directions on the wiTECH.
1. Reprogram the PCM with the latest software. Follow the detailed service procedures available in DealerCONNECT/TechCONNECT, Refer To Group 8 - Electrical > Electronic Control Modules - Service Information > Module - Powertrain Control > Standard Procedures > PCM/ECM Programming - Gas. 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 DTCs after the flash and allow the tech to clear them.
b. Reset the "Pinion Factor" as necessary.
c. Perform the transmission Quick Learn Procedure as necessary.
d. Update the Sentry Key Immobilizer Module (SKIM) or Sentry Key Remote Entry Module (SKREEM), Secret Key data if necessary.
2. 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.