Engine Controls - DTC P2110/ETC Lamp Flashes
NUMBER: 18-018-08 REV. AGROUP: Vehicle Performance
DATE: September 11, 2008
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN, 18-018-08 DATED APRIL 24, 2008, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE THE ADDITION OF 2007 MODEL YEAR.
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:
Flash: DTC P21101 Electronic Throttle Control (ETC) Lamp Flashes at Speeds Greater Than 95 Miles Per Hour
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM).
NOTE:
Vehicles equipped with a CVT transmission must have the transmission control module (TCM) checked for the latest software level whenever the PCM software is updated. If newer TCM software is available, it must be installed. Failure to maintain software coordination may result in MIL illumination or driveability concerns.
MODELS:
**2007** - 2008 (MK74) Patriot
NOTE:
This Bulletin applies to models equipped with a 2.4L engine & automatic CVT2L (Off Road) transmission (Sales Code ED3 with DAW) built prior to April 2, 2008 (MDH 0402XX).
SYMPTOM/CONDITION:
Some customers may experience the electronic throttle control (ETC) lamp flashing in the instrument panel if the vehicle is driven over 95 miles per hour. Vehicles equipped with a CVT2L (Off Road) transmission are not designed to be driven at excess speeds. To protect the transmission, vehicle systems will "torque limit at speeds greater than 95 miles per hour and will prevent the vehicle from going faster. The ETC lamp flashing may cause customer concern, especially when the vehicle torque limits and prevents the vehicle from going faster.
NOTE:
It is normal for vehicles equipped with a CVT2L transmission to torque limit and prevent vehicle speeds above 95 MPH.
Further investigation by the technician may find DTC 2110 - Electronic Throttle Control - Forced Limited RPM.
It is important that the customer understands the operating characteristics of the vehicle. The software available with this Service Bulletin will eliminate ETC lamp flashing but will not change the torque limits associated with vehicle operation.
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 other than P2110 are present record them on the repair order and repair as necessary before proceeding further with this bulletin.
If the above symptom/condition is experienced and the operating characteristics of the vehicle have been explained to the customer along with the expectations of this flash update, perform the Repair Procedure.
PARTS REQUIRED:
SPECIAL TOOLS / EQUIPMENT REQUIRED:
REPAIR PROCEDURE - USING THE INTERNET TO RETRIEVE THE FLASH FILE:
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
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.
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.