Tuesday, May 10, 2022

2010 Cadillac Truck SRX FWD V6-3.0L Page 1102

2010 Cadillac Truck SRX FWD V6-3.0L Page 1102



P0092



* The ECM detects a short to voltage in the high pressure fuel pump actuator low control circuit.



* The DTC sets when the above condition is present for 4 s.



P00C8



* The ECM detects an open circuit in the high pressure fuel pump actuator high control circuit.



* The DTC sets when the above condition is present for 4 s.



P00C9



* The ECM detects a short to ground in the high pressure fuel pump actuator high control circuit.



* The DTC sets when the above condition is present for 4 s.



P00CA



* The ECM detects a short to voltage in the high pressure fuel pump actuator high control circuit.



* The DTC sets when the above condition is present for 4 s.



Action Taken When the DTC Sets



* DTCs P0090, P0091, P0092, P00C8, P00C9, and P00CA are Type A DTCs.



* A message center or an indicator displays Reduced Engine Power.



Conditions for Clearing the DTC



DTCs P0090, P0091, P0092, P00C8, P00C9, and P00CA are Type A DTCs.



Reference Information



Schematic Reference



Engine Controls Schematics (LAU) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)Engine Controls Schematics



(LF1) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)



Connector End View Reference



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



Description and Operation



Fuel System Description (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Description and Operation/Fuel System



Description)Fuel System Description (LAU or LY7) (See: Powertrain Management/Fuel Delivery and Air Induction/Description and



Operation/Fuel System Description)



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. Observe the DTC information with a scan tool. DTC P0090, P0091, P0092, P00C8, P00C9, P00CA, P0685, or P1682 should not set.



瀚慖f a DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic Trouble



Code (DTC) List - Vehicle).



2. Ignition ON, command the Fuel Pressure Regulator ON and OFF with a scan tool while observing the following control circuit status



parameters:



* Fuel Pressure Regulator Control Circuit High Voltage Test Status



* Fuel Pressure Regulator Control Circuit Open Test Status

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