Flash: Intermittent 4WD Lamp Or DTC P0573 - Brake Switch #1 Circuit High - 2005 Jeep Liberty/Cherokee & Wrangler

NUMBER: 08-029-05
GROUP: Electrical
DATE: June 10, 2005

 

THE DRBIII FLASH FILES FOR THIS BULLETIN ARE AVAILABLE ON DealerCONNECT.

THE DRBIII SOFTWARE UPDATE CD CONTAINS ALL PREVIOUSLY RELEASED FLASH FILES PRIOR TO THE CD RELEASE DATE PRINTED ON THE CD LABEL.

FOR MARKETS OUTSIDE OF THE UNITED STATES AND CANADA, THE FLASH FILES AND REPROGRAMMING INSTRUCTIONS WILL BE AVAILABLE ON ITIL/ISIS DVD AUGUST, 2005.

 

SUBJECT:

Flash: Intermittent 4WD Lamp Or DTC P0573 - Brake Switch #1 Circuit High

 

OVERVIEW:

This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software.

 

MODELS:

2005 (KJ) Liberty/Cherokee (All Markets)
2005 (TJ) Wrangler

 

NOTE: For TJ vehicles with an intermittent 4WD lamp illumination condition this bulletin applies to vehicles built prior to February 14, 2005 (MDH 0214XX).

NOTE: For vehicles with the DTC P0573 condition, this bulletin applies to KJ vehicles equipped with a 3.7L (sales code EKG) and built prior to June 16, 2005 (MDH 0616XX) and to TJ vehicles equipped with a 4.0L engine (sales code ERH) built prior to June 10, 2005 (MDH 0610XX).

 

SYMPTOM/CONDITION:

The Powertrain Control Module (PCM) new software addresses the following possible conditions and/or improvements:

  1. A Malfunction Indicator Lamp (MIL) illumination due to DTC P0573 - Brake Switch #1 Circuit High (KJ or TJ).
  2. An intermittent illumination of the “4WD” lamp in the instrument cluster when in two wheel drive (2WD) mode (TJ only).

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