Canyon 2WD L5-3.5L VIN 6 (2004)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
Campaign - ECM Reprogramming for 'Stuck' Fuel Sender
System Software Upgrade-Fuel Level Sender On Board Diagnostic (Reprogram Powertrain Control Module (PCM))
# 04081 - (Oct 18, 2004)
Models:
Certain 2004 Chevrolet Malibu
Equipped with 2.2L (RPO L61 - VIN F) L4 Engine
Chevrolet Colorado
GMC Canyon
Equipped with 2.8L (RPO LK5 - VIN 8) L4 Engine or 3.5L (RPO L52 - VIN 6) L5 Engine
And Built For Sale in California (RPO YF5)
Purpose
This bulletin provides information about installing new Powertrain Control Module (PCM) software and calibration on certain 2004 Chevrolet Malibu
model vehicles equipped with a 2.2L (RPO L61 -- VIN F) L4 engine; Chevrolet Colorado or GMC Canyon model vehicles equipped with a 2.8L (RPO
LK5 - VIN 8) L4 engine or 3.5L (RPO L52 - VIN 6) L5 engine; and all built for sale in California (RPO YF5). PCM reprogramming is necessary on
these vehicles to update the "stuck" fuel level sensor On-Board Diagnostic detection capability. Install the new calibration on all affected vehicles
identified on the VIN list (Not Shown), including vehicles in new dealer inventory and any vehicles that return for service, for any reason, during the
applicable vehicle warranty coverage period. To verify if an updated calibration is required, refer to the following procedure in this bulletin.
Service Procedure
The GM Vehicle Inquiry System (GM VIS) must be checked to determine if a specific vehicle requires this action. If GMVIS indicates that this System
Software Update remains "open" and PCM reprogramming has not take place otherwise after the TIS Broadcast or CD-ROM availability dates identified
below, reprogram the PCM using a Tech 2 scan tool with the calibration update from Techline Information System (TIS) 2000. For the 2.8L (RPO LK5)
L4 or 3.5L (RPO L52) L5 engine use data version 4.5 for 2004 or later, broadcast to dealers on April 17, 2004; and on TIS CD-ROM version 5.5 or later
for 2004, mailed to dealers by May 5, 2004. For the 2.2L (RPO L61) L4 engine use data version 5.5 for 2004 or later, broadcast to dealers on May 22,
2004; and on TIS CD-ROM version 5 for 2004, mailed to dealers on June 9, 2004.
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