Tuesday, June 1, 2021

2010 Cadillac Truck SRX AWD V6-3.0L Page 1884

2010 Cadillac Truck SRX AWD V6-3.0L Page 1884



Any loading of the engine that lowers engine RPM, such as with partial application of the clutch, A/C cycling etc., during the first 17 s of engine



run time may set this DTC.



Circuit/System Verification



1. Allow the engine to cool.



2. Start and idle the engine for at least 2 min.



3. DTC P1400 should run and pass.



Circuit/System Testing



* Inspect the air intake system for the following:



- Damage, restriction, or modification



- Dirty or deteriorating air filter element



- Crankcase ventilation system for correct operation-Refer to Crankcase Ventilation System Inspection/Diagnosis (See: Powertrain



Management/Emission Control Systems/Positive Crankcase Ventilation/Testing and Inspection).



- Water intrusion



- Vacuum leak and other un-metered air downstream of the mass air flow (MAF) sensor



- Intake manifold leak



* Inspect the exhaust system for the following:



- Water intrusion



- Exhaust leak



- Damaged, restricted, modified or enhanced exhaust system-Refer to Symptoms - Engine Exhaust (See: Engine, Cooling and



Exhaust/Exhaust System/Testing and Inspection/Symptoms - Engine Exhaust).



* Inspect the engine mechanical for items that could alter the air flow into the combustion chamber. Refer to Symptoms - Engine Mechanical (



See: Engine, Cooling and Exhaust/Engine/Testing and Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine Mechanical).



Repair Instructions



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



P1516



DTC P1516, P2101, P2119, or P2176 (LF1, LFW)



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 P1516



- Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance



DTC P2101



- Throttle Actuator Position Performance



DTC P2119



- Throttle Closed Position Performance



DTC P2176



- Minimum Throttle Position Not Learned



Diagnostic Fault Information

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