Commander 4WD V8-4.7L VIN N (2006)
Instrument Panel Control Module: All Technical Service Bulletins
Instruments - Outside Temperature Disply Inaccurate
NUMBER: 08-005-06 REV. B
GROUP: Electrical
DATE: August 24, 2006
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 08-005-06 REV. A, DATED JUNE 3, 2006, WHICH SHOULD BE
REMOVED FROM YOUR FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDES THE ADDITION OF A
NOTE DESCRIBING APPLICABLE BUILD DATES.
THE StarSCAN(R) FLASH FILES FOR THIS BULLETIN ARE AVAILABLE VIA THE INTERNET.
SUBJECT:
Outside Ambient Temperature Reading Inaccurate As Displayed By Instrument Cluster
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Front Control Module (FCM) with new software.
MODELS:
2006
(WK)
Grand Cherokee
2006
(WH)
Grand Cherokee (International Markets)
2006
(XK)
Commander
2006
(XH)
Commander (International Markets)
NOTE:
**This bulletin applies to all subject vehicles built prior to January 1, 2006 (MDH 0101XX) and vehicles equipped with a 5.7L engine (sales code
EZB) WITHOUT Trailer Tow Group (sales code AHT) built prior to March 1, 2006 (MDH 0301XX).**
SYMPTOM/CONDITION:
The vehicle operator may notice that the reading displayed on the Instrument Panel (IP) cluster for outside ambient temperature is inaccurate. The
displayed ambient temperature may read 4° F (2.2° C) or more too high or too low than actual ambient temperature. This condition will occur while
driving. This condition should not be confused with increased ambient temperature readings that will occur normally while sitting at idle or immediately
after a hot soak start. A vehicle must be driven for at least 3 minutes at a speed of 25 kph (15 mph) or greater for the temperature display to update.
DIAGNOSIS:
1.
Inspect for the (hardware) part number on the outside of the Integrated Power Module (IPM). The IPM is located under the vehicle hood and is
attached to the Power Distribution Center (PDC).
2.
Is the part number on the outside of the IPM one of the following (or later):
04692014AJ, 04692015AJ, 04692016AJ, or 04692017AJ?
a.
If YES >> then STOP. This bulletin does not apply. Further diagnosis is required.
b.
If NO >> then proceed to the next step.
3.
Does the IP cluster display show a temperature reading of either: "- --" or "-40" ?
a.
If YES >> then STOP. This bulletin does not apply. Further diagnosis is required.
b.
If NO >> then proceed to the next step.
4.
Does the IP cluster display a temperature reading that is at least 110 C (200 F) higher or lower than the actual outside ambient temperature?
a.
If YES >> then STOP. This bulletin does not apply. Further diagnosis is required.
b.
If NO >> then proceed to the next step.
