Wednesday, September 2, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 1474

2010 Cadillac Truck SRX AWD V6-3.0L Page 1474



inspect the sensor and the O-ring for damage.



瀚慖f the sensor is loose, incorrectly installed, or damaged, repair or replace the B23 crankshaft position sensor.



2. Connect the crankshaft position sensor connector to the crankshaft position sensor.



3. Ignition ON, observe the applicable camshaft position active counter parameter with a scan tool. Pass a steel object by the tip of the sensor



repeatedly. The camshaft position active counter parameter should increment.



瀚慖f the function does not perform as specified, replace the B23 camshaft position sensor.



Repair Instructions



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



* 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)



* 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 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)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for K20 ECM replacement, setup, and



programming



P0366



DTC P0341, P0346, P0366, or P0391 (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 P0341



- Intake Camshaft Position Sensor Performance Bank 1



DTC P0346



- Intake Camshaft Position Sensor Performance Bank 2



DTC P0366



- Exhaust Camshaft Position Sensor Performance Bank 1



DTC P0391



- Exhaust Camshaft Position Sensor Performance Bank 2



Diagnostic Fault Information



Circuit/System Description



The 4X camshaft position sensor circuits consist of an engine control module (ECM) supplied 5 V reference circuit, low reference circuit, and an



output signal circuit. The camshaft position sensor is an internally magnetic biased digital output integrated circuit sensing device. The sensor



detects magnetic flux changes of the teeth and slots of a 4-tooth reluctor wheel attached to the camshaft. As each reluctor wheel tooth rotates past



the camshaft position sensor, the resulting change in the magnetic field is used by the sensor electronics to produce a digital output pulse. The



sensor returns a digital ON/OFF DC voltage pulse of varying frequency, with 4 varying width output pulses per camshaft revolution that represent



an image of the camshaft reluctor wheel. The frequency of the camshaft position sensor output depends on the velocity of the camshaft. The ECM



decodes the narrow and wide tooth pattern to identify camshaft position. This information is then used to determine the optimum ignition and

No comments:

Post a Comment