Thursday, July 16, 2020

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1567

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1567



Management/Fuel Delivery and Air Induction/Fuel Pressure Sensor/Switch/Service and Repair)



* Engine Oil Pressure Sensor and/or Switch Replacement (See: Engine, Cooling and Exhaust/Engine/Engine Lubrication/Oil Pressure



Sensor/Service and Repair)



* Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake (See: Powertrain Management/Computers and Control



Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake)



* Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust (See: Powertrain Management/Computers and Control



Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust)



* Camshaft Position Sensor Replacement - Bank 2 (Left Side) Intake (See: Powertrain Management/Computers and Control



Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 2 (Left Side) Intake)



* Camshaft Position Sensor Replacement - Bank 2 (Left Side) Exhaust (See: Powertrain Management/Computers and Control



Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 2 (Left Side) Exhaust)



* Accelerator Pedal Position Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Accelerator Pedal Position



Sensor/Service and Repair)



* Throttle Body Assembly Replacement (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Throttle Body/Service and



Repair/Removal and Replacement)Throttle Body Assembly Replacement (LLT) (See: Powertrain Management/Fuel Delivery and Air



Induction/Throttle Body/Service and Repair/Removal and Replacement)



* Crankshaft Position Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Crankshaft Position



Sensor/Service and Repair)



* Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement (See: Heating and Air Conditioning/Refrigerant Pressure Sensor /



Switch/Service and Repair)



* Clutch Pedal Position Switch Replacement (See: Powertrain Management/Transmission Control Systems/Sensors and Switches -



Transmission and Drivetrain/Sensors and Switches - M/T/Clutch Pedal Position Sensor / Switch/Service and Repair)



P0653



DTC P0641-P0643, P0651-P0653, or P0697-P0699 (ECM, LLT)



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 P0641



- 5 V Reference 1 Circuit



DTC P0642



- 5 V Reference 1 Circuit Low Voltage



DTC P0643



- 5 V Reference 1 Circuit High Voltage



DTC P0651



- 5 V Reference 2 Circuit



DTC P0652



- 5 V Reference 2 Circuit Low Voltage



DTC P0653



- 5 V Reference 2 Circuit High Voltage



DTC P0697



- 5 V Reference 3 Circuit



DTC P0698



- 5 V Reference 3 Circuit Low Voltage



DTC P0699



- 5 V Reference 3 Circuit High Voltage



Circuit/System Description



The engine control module (ECM) has 3 5 V reference circuits. The ECM provides the 5 V reference to various sensors. Each reference circuit



provides a 5 V reference for more than one sensor. An open, short to ground, or short voltage on one of the 5 V reference circuits can affect all the



components connected to that 5 V reference circuit. The ECM monitors the voltage on the 5 V reference circuits.