Erratic Fuel Gauge Readidngs (Reprogram Engine Control Module (ECM))

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).

Some customers may comment on erratic fuel gauge readings.

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

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

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.

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).