I have an 05 Grand Cherokee Laredo 3.7 and I keep getting the dash warning "Service Electric Brake System" along with "Traction Control Off light". It turns on about 3 mins after starting the car everytime and even if you havn't moved yet. I have checked all the jeep forums and it sounds like a common issue but i'm yet to find a sure fix. I also have an 07 Ram and this site has helped me many times so I figured I would give it a shot.

Please anyone that's a Chrysler/Dodge/Jeep technician or anyone who knows the issue please help!!

 

Here is a TSB I found. This may help. But I do need a little more information, such as stored codes either in the ABS module or the FDCM.

THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 18-014-09 DATED
MAY 9, 2009 AND 18-049-07 DATED DECEMBER 13, 2007 EXCEPT FOR THE 2006
XK/XH 4.7L MODELS WHICH ARE COVERED BY SAFETY RECALL H19 AND
18-028-07 DATED APRIL 21, 2007, WHICH SHOULD BE REMOVED FROM YOUR
FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE
THE ADDITION OF YEARS, MODELS AND ENGINES.
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 10.01 OR HIGHER TO
PERFORM THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT or StarSCAN MAY ALSO BE USED TO PERFORM
THIS PROCEDURE.
WHENEVER A MODULE IS REPROGRAMMED, THE SOFTWARE IN THE DRBIII®
MUST BE PROGRAMMED WITH THE LATEST REVISION LEVEL AVAILABLE.
SUBJECT:
FLASH: ESP System May Prematurely Activate Momentarily When Negotiating A Curve
Or MIL Illumination Due To Diagnostic Trouble Code P0340, P0344 or P0116
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (PCM) with new software.
MODELS:
2004 - **2007** (HB) Durango
**2007 (HG) Aspen**
**2007 (DR) Ram Truck
2005 - **2007** (WK) Grand Cherokee
2005 - **2006** (WH) Grand Cherokee (International Markets)
NUMBER: 18-014-09 REV. A
GROUP: Vehicle Performance
DATE: November 6, 2009
2006 - **2007** (XK) Commander
2006 - **2007** (XH) Commander (International Markets)
2004 - 2006 (KJ) Liberty
NOTE: **This bulletin applies to the HB/HG/WK/WH/XK/XH/KJ vehicles equipped
with a 3.7L, 4.7L or 5.7L engine (sales code EKG, EVA, EVD, EZB or EZA).**
NOTE: **This bulletin applies to the DR vehicles equipped with a 5.7L engine (sales
code EZB).**
SYMPTOM/CONDITION:
The customer may experience a premature and momentary activation of the Electronic
Stability Program (ESP) system. The premature activation of the ESP system may or may
not be accompanied with the illumination of the ESP indicator lamp located in the
instrument cluster. The customer may experience the momentary ESP system activation
on a “clover leaf” type turn, at speeds of approximately 25 to 40 MPH (40 to 64 KPH). This
could also be described as a lack of throttle response or hesitation. Driving over speed
bumps at a slight angle can also cause the same ESP event accompanied by lack of
throttle response. The customer may also complain of low idle speed.
The customer may also experience MIL for one of the following Diagnostic Trouble Code:
i. P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor 1
ii. P0344 - Camshaft Position Sensor Intermittent - Bank 1 Sensor 1
iii. P0116 - Engine Coolant Temperature Sensor Performance