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2010 Cadillac Truck SRX AWD V6-3.0L Page 1921

2010 Cadillac Truck SRX AWD V6-3.0L Page 1921



Conditions for Setting the DTC



P0461 or P2066



* The ECM detects a difference between the fuel consumed by the engine and change of the fuel level signal of less than 1 L (0.26 gal) over a



range of 30 L (7.92 gal) or 45.6% of the primary fuel tank.



* The above condition is present for about 300 seconds.



P0462 or P2067



* The signal voltage is less than 0.25 V.



* The above conditions must be met for 5 seconds.



P0463 or P2068



* The signal voltage is greater than 4.7 V.



* The above conditions must be met for 5 seconds.



P0464



* The fuel level change is greater than 10%.



* The above conditions must be met for 30 seconds.



* DTC P0464 runs and fails 2 out of 3 test cycles.



Action Taken When the DTC Sets



* P0461, P0462, P0463, P0464, P2066, P2067 and P2068 are Type B DTCs



* The fuel gauge defaults to empty



* The low fuel indicator illuminates



Conditions for Clearing the DTC



* P0461, P0462, P0463, P0464, P2066, P2067 and P2068 are Type B DTCs



* The DTC becomes history when the conditions for setting the DTC are no longer present.



* The history DTC clears after 40 malfunction-free warm-up cycles.



Reference Information



Schematic Reference



Instrument Cluster Schematics (See: Diagrams/Electrical Diagrams/Instrument Panel, Gauges and Warning Indicators/System Diagram/Instrument



Cluster Schematics)



Connector End View Reference



Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)



Description and Operation



Instrument Cluster Description and Operation (See: Instrument Panel, Gauges and Warning Indicators/Description and Operation/Instrument



Cluster)



Electrical Information Reference



* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit



Testing/Circuit Testing)



* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic



Procedures/Connector Repairs/Connector Repairs)



* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General



Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)



* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring



Repairs/Wiring Repairs)



DTC Type Reference



Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code



(DTC) Type Definitions)



Scan Tool Reference



Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information



Circuit/System Verification



1. Ignition ON, observe the scan tool ECM - Fuel Level Sensor parameters. The reading should be between 0.5-3.5 V and vary with fuel level.



2. Ignition ON, perform the Instrument Cluster Gauge Sweep test with the scan tool, verify that the fuel level gauge sweeps from its low to high

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