Sunday, October 11, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 1514

2010 Cadillac Truck SRX AWD V6-3.0L Page 1514



percentage of remaining fuel in the tank. The ECM sends the fuel level percentage via High Speed CAN-Bus to the body control module (BCM).



The BCM then sends the fuel level percentage via Low Speed CAN-Bus to the instrument cluster in order to control the fuel gauge.



Conditions for Running the DTC



* The engine is running



* The system voltage is between 11-16 V



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