NUMBER: 18-036-06
DATE: November 18, 2006

SUBJECT:
FLASH: Powertrain Control Module (PCM) MIL/Battery Light Illumination

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

SYMPTOM/CONDITION:
-Improved diagnostics for MIL illumination due to DTC P1607 Shutdown Timer
Rationality.
-Improved diagnostics for battery light illumination due to DTC P2504 Charging
System Output High.
-Improved diagnostics for MIL illumination due to DTC P0613 Dual Port Ram.
-Improved automatic transmission shift quality.
-Improved idle quality with the A/C compressor on.

Jeep JK TSB_18-036-06