Erratic Fuel Gauge Readings (Reprogram Engine Control Module [ECM]) (05-08-49-004A)

Publication date: 2005-05-23
Reference number: 05-08-49-004A
Supersedes refnos: 05-08-49-004

Erratic Fuel Gauge Readings (Reprogram Engine Control Module [ECM])

TECHNICAL SERVICE BULLETIN

Reference Number(s): 05-08-49-004A, Date of Issue: May 23, 2005

Affected Model(s):	2005 Saturn ION; with 2.2L Engine (VIN F - RPO L61)
Attention:	Technician and Fixed Operations Manager
Supercedes:	This bulletin is being updated to delete "Verify Calibration ID" and change "Replace and Reprogram" option to "Reprogram" in the Service Procedure. Please discard Corporate Bulletin Number 05-08-49-004 (Section 08 - Body & Accessories).

Condition

Some customers may comment on erratic fuel gauge readings.

Cause

The condition may be caused by a fuel level sender calibration error.

Correction

Follow the steps listed in the "Service Procedure" in this bulletin to reprogram the ECM.

Service Procedure

Reprogramming ECM

IMPORTANT: Before installing the new ECM calibration, make sure the Saturn Service Stall (SSS) version is TIS 5.0 2005 or later.

IMPORTANT: While the ignition is OFF, apply the parking brake to disable the daytime running lights (DRLs) prior to starting the reprogramming procedures. On ION vehicles equipped with "Auto Headlamp Feature," the headlamps must be turned off prior to programming.

IMPORTANT: Technician must select the "Reprogram" option in order to reprogram the ECM.

Reprogram the ECM with the appropriate calibration.

Use the Saturn Service Stall System (SSS) software version 5.0 2005 or later data CD. Refer to "Service Programming System (SPS)" in the SSS User Guide and "Service Programming System (SPS)" section of the 2005 Saturn ION Service Manual, Vol. 3 (SI Document ID #1265170) for reprogramming procedures.

Verify that the condition has been repaired. If the condition is still present after reprogramming, refer to the appropriate section of the service manual or SI for additional diagnostic information.

Claim Information

To receive credit for this repair during the warranty coverage period, submit a claim through the Saturn Dealer System for J6354 (EE Reprogramming - Install new PCM Calibration).