Saturday, May 7, 2022

2010 Cadillac Truck SRX FWD V6-3.0L Page 1461

2010 Cadillac Truck SRX FWD V6-3.0L Page 1461



1. Install any components or connectors that have been removed or replaced during diagnosis.



2. Perform any adjustment, programming, or setup procedures that are required when a component or module is removed or replaced.



3. Clear the DTCs.



4. Turn the ignition OFF for 60 s.



5. If the repair is related to a DTC, duplicate the Conditions for Running the DTC and use the Freeze Frame/Failure Records, if applicable, in



order to verify the DTC does not reset. If the DTC resets or another DTC is present, refer to Diagnostic Trouble Code (DTC) List - Vehicle



(See: Diagnostic Trouble Code Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle) and perform the appropriate diagnostic



procedure.



6. To verify that the performance of the catalytic converter has not been affected by the condition that set this DTC, perform the Repair



Verification for DTC P0420 or P0430.



P0353



DTC P0351-P0356 (LF1)



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 P0351



- Ignition Coil 1 Control Circuit



DTC P0352



- Ignition Coil 2 Control Circuit



DTC P0353



- Ignition Coil 3 Control Circuit



DTC P0354



- Ignition Coil 4 Control Circuit



DTC P0355



- Ignition Coil 5 Control Circuit



DTC P0356



- Ignition Coil 6 Control Circuit



Diagnostic Fault Information



Circuit/System Description



The ignition system on this engine uses an individual coil/module for each cylinder. The engine control module (ECM) controls the spark event for



each cylinder through the eight individual ignition control circuits. When the ECM commands the ignition control circuit ON, electrical current will



flow through the primary winding of the ignition coil, creating a magnetic field. When a spark event is requested, the ECM will command the



ignition control circuit OFF, interrupting current flow through the primary winding. The magnetic field created by the primary winding will



collapse across the secondary coil windings, producing a high voltage across the spark plug electrodes. The ECM uses information from the

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