Dakota 4WD V8-4.7L VIN J (2007)
Engine Control Module: Customer Interest
Engine Controls - MIL ON/DTC P2181 Set
NUMBER: 18-021-11
GROUP: Vehicle Performance
DATE: April 22, 2011
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 11.03 OR HIGHER TO PERFORM THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT:
Flash: MIL Illumination For P2181 - Cooling System Performance
OVERVIEW:
This bulletin involves flash reprogramming the Powertrain Control Module (PCM) with new software.
MODELS:
2007
(DC)
RAM 3500 CAB Chassis
2007
(DH)
RAM 1500/2500 Pickup
2007
(DR)
RAM 1500 Pickup
2007
(ND)
Dakota
NOTE:
This bulletin applies to DC, DH and DR bodies equipped with a 5.7L engine (Sales code EZB or EZA) and a automatic transmission.
NOTE:
This bulletin applies to DR and ND bodies equipped with a 3.7L engine (Sales code EKG) and a automatic transmission.
SYMPTOM/CONDITION:
Some customers may complain of a MIL illumination. Upon further investigation the Technician may find that P2181 - Cooling System Performance has
been set.
DIAGNOSIS:
Using a Scan Tool (wiTECH or StarMOBILE) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine systems are
functioning as designed. If DTC's other than the one listed above are present record them on the repair order and repair as necessary before proceeding
further with this bulletin.
If the customer describes the symptom or if the technician finds the DTC, perform the Repair Procedure.
PARTS REQUIRED:
REPAIR PROCEDURE:
NOTE:
Install a battery charger to ensure battery voltage does not drop below 13.2 volts. Do not allow the charging voltage to climb above 13.5 volts during
the flash process.
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
