Engine Controls - MIL ON/DTC P0483 Set

2006 Service Bulletins

TSB 5B06-03-5003 Malfunction Indicator Lamp (MIL) Illuminated With Engine Cooling Fan System

Performance DTC P0483 Currently Set Or Stored In History



Malfunction Indicator Lamp (MIL) Illuminated With Engine Cooling Fan System Performance DTC P0483 Currently Set Or Stored In History


ISSUE DATE: OCTOBER 2006



Affected Vehicles


2007 lsuzu Ascender (UT)

Involved are 2007 lsuzu Ascender vehicles built within the following VIN breakpoints:

Service Information

Condition:

Some customers may comment on a Malfunction Indicator Lamp (Ml L) illuminated. Technicians may find an Engine Cooling Fan System Performance Diagnostic Trouble Code (DTC) P0483 currently set or stored in history.

Possible Cause:

This condition may be caused by more sensitive Powertrain Control Module (PCM) diagnostics and a reduced fan flare clutch for 2007 that have resulted in a system that is more sensitive to setting the fan performance DTC, P0483, while driving at low speed after a start-up with the Air Conditioning (A/C) on.

Correction:

Update the Powertrain Control Module (PCM) software in vehicles built prior to the above listed VIN breakpoints.



Service Procedure


Determine the build date of the vehicle and use the following instructions to repair this condition.


The PCM should be reprogrammed using calibrations that were released on IDS Version 10 or newer.


The updated PCM calibrations were released on IDS Version 10 and newer. As always make sure your Tech

2 is updated with the latest software version. Refer to the Engine and Powertrain Control Module

Programming and Setup procedures in the Service Manual for further information.


Warranty Claims Information


Use the following labor operation:




NOTE:


1. Labor Time includes administrative time allowance.


2. Information released on paper and electronic format prior to bulletin release cannot be updated. For the most current and up to date information refer to website


3. Always refer to the lsuzu Service Policy Procedure Manual for specific details on warranty coverage and policies.