Instruments - Inaccurate Fuel Gauge Readings
TECHNICALBulletin No.:09-08-49-005
Date: March 27, 2009
Subject:
Fuel Gage Reads Inaccurate or Empty, Low Fuel Indicator Illuminated, DTCs P0461 and/or P0463 Set (Check Terminals in Connector X405)
Models:
2008-2009 Buick Allure (Canada Only), Allure Super (Canada Only), LaCrosse, LaCrosse Super
2008-2009 Chevrolet Impala, Impala SS
Condition
Some customers may comment that the low fuel indicator comes on and the fuel gage reads empty when there is fuel in the tank. Other comments may be that the fuel gage is inaccurate.
Upon further inspection, it may be found that DTC P0461 and/or P0463 have been set.
Cause
This condition may be due to poor terminal tension at connector X405, resulting in resistance at the affected circuits.
Correction
Perform a pin drag test on all female terminals within connector X405. If a terminal is found to be loose or have poor tension, replace the affected terminal.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer