Monday, December 23, 2019

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1763

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1763



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



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 Testing



1. Verify that DTC P0231, P0232 or P023F are not set.



瀚慖f any of those codes are set, refer to DTC P0231, P0232, or P023F (See: P Code Charts/P0231).



2. Ensure that the entire undercarriage of the vehicle is clean, especially around the area where the K27 fuel pump control module is located.



Clear all codes from the K27 fuel pump control module and test drive the vehicle. Verify that DTC P1255 or P064A do not set.



瀚慖f DTC P1255 or P064A reset, replace the K27 fuel pump control module.



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



Control Module References (See: Testing and Inspection/Programming and Relearning) for fuel pump control module replacement, setup, and



programming



P1258



DTC P1258



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC P1258



- Engine Coolant Overtemperature - Protection Mode Active



Circuit/System Description

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