2010 Cadillac Truck SRX AWD V6-3.0L Page 1013

2010 Cadillac Truck SRX AWD V6-3.0L Page 1013



Circuit/System Testing



1. Ignition ON, observe the DTC information with a scan tool. Verify that none of the following DTCs are set. DTC P0010, P0013, P0020,



P0023, P0335, P0336, P0340, P0341, P0345, P0346, P0365, P0366, P0390, or P0391.



瀚慖f any of the DTCs listed are set refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code



Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle) for further diagnosis.



2. Idle the engine at normal operating temperature. DTCs P0016, P0017, P0018, or P0019 should not set.



瀚慖f a DTC sets, inspect for the following and repair as necessary:



* The correct installation of the camshaft sensors



* The correct installation of the crankshaft sensor



* A timing chain tensioner condition



* An incorrectly installed timing chain



* Excessive play in the timing chain



* A mechanical cam actuator that is stuck in the full advance or retard position.



* A timing chain that jumped teeth



* A crankshaft reluctor wheel that has moved in relationship to top dead center (TDC) on the crankshaft



3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the



conditions that you observed from the Freeze Frame/Failure Records data.



Repair Instructions



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



* Timing Chain Alignment Diagram (See: Engine, Cooling and Exhaust/Engine/Timing Components/Timing Component Alignment



Marks/Locations)



* Camshaft Timing Drive Components Cleaning and Inspection (See: Engine, Cooling and Exhaust/Engine/Service and Repair/Overhaul/81.



Camshaft Timing Drive Components Cleaning and Inspection)



* Crankshaft and Bearing Cleaning and Inspection (See: Engine, Cooling and Exhaust/Engine/Service and Repair/Overhaul/66. Crankshaft



and Bearing Cleaning and Inspection)



P018B



DTC P018B-P018D



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 P018B



- Fuel Pressure Sensor Performance



DTC P018C



- Fuel Pressure Sensor Circuit Low Voltage



DTC P018D



- Fuel Pressure Sensor Circuit High Voltage



Diagnostic Fault Information



Circuit/System Description

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