Grand Cherokee 4WD V8-4.7L Flex Fuel (2009)
Engine Control Module: All Technical Service Bulletins
Engine Controls - MIL ON/DTC's P013A/P013C Stored
NUMBER: 18-010-10 REV. A
GROUP: Vehicle Performance
DATE: April 28, 2010
THIS BULLETIN SUPERSEDES SERVICE BULLETIN 18-010-10, DATED APRIL 9, 2010, WHICH SHOULD BE REMOVED FROM YOUR
FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE THE ADDITIONAL 2009 MODELS.
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 P01 3A And/Or P013C
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software.
MODELS:
**2009** - 2010
(WK)
Grand Cherokee
**2009** - 2010
(WH)
Grand Cherokee (International Markets)
**2009** - 2010
(XK)
Commander
**2009*
(XH)
Commander (International Markets)
NOTE:
**This bulletin applies to all WK and XK vehicles equipped with a 3.7L engine (Sales code EKG) and a NAG1 automatic transmission (Sales code
DGJ) or WK, WH, XK and XH vehicles equipped with a 4.7L engine (Sales code EVE) and a 545RFE automatic transmission (Sales code DGQ).**
NOTE:
This bulletin applies to all WH vehicles equipped with a 3.7L engine (Sales code EKG) and a NAG1 automatic transmission (Sales code DGJ). built
before March 23, 2010 (MDH 0323XX).
SYMPTOM/CONDITION:
The customer may experience a MIL illumination. Upon further investigation the Technician may find that one or all of the following Diagnostic Trouble
Codes (DTC) are present:
1. P013A - 02 Sensor 1/2 Slow Response - Rich to Lean
2. P013C - 02 Sensor 2/2 Slow Response - Rich to Lean
Updating the PCM software will correct the conditions listed above.
DIAGNOSIS:
Using a Scan Tool (wiTECH(TM)) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine and transmission systems
are functioning as designed. If DTC's are present other then the one's listed above record them on the repair order and repair as necessary before
proceeding further with this bulletin.
If the above condition is present, perform the Repair Procedure.
